Lung Inflammation May Increase Memory Retention of Traumatic Events

Posted on September 26, 2025 by Igor Mitreski

Airway inflammation can arise from smoking or air pollution exposure

Lysenko Andrii/Shutterstock

Severe airway inflammation hampers the ability of mice to discern when dangerous situations are no longer a threat, indicating that lung conditions may influence emotions and behaviors. This connection between lung health and brain function could clarify why a small number of individuals who undergo trauma develop post-traumatic stress disorder (PTSD).

“While many people encounter trauma, only 5-10% ultimately develop PTSD,” explains Renu Sah from the University of Cincinnati in Ohio. Prior research has indicated that lung inflammation might be a contributing factor. For instance, individuals with PTSD are approximately eight times more likely to have asthma.

Sah and her team delved deeper into the correlation by observing eight mice exhibiting severe asthma-like symptoms. Their lungs were exposed to mites, inducing an allergic response and subsequent inflammation. Three days afterward, the mice were placed in cages and subjected to three mild electric shocks.

Over the subsequent six days, researchers returned the mice to the cage for five minutes daily, monitoring the duration they stood frozen in fear. On average, these mice were immobilized for about 40% of the final session, which was twice as long compared to another group of 11 mice without lung inflammation who faced the same electrocution.

The two groups did not exhibit differences in fear response the day after the shocks. However, the first group’s prolonged fear response after several days suggests that significant airway inflammation hampers the brain’s ability to recognize when a threat has subsided. “In PTSD patients, this process is dysfunctional, leading to persistent fear memories,” Sah elucidates.

The experiment was replicated with another set of mice experiencing severe lung inflammation, but this time, a medication inhibiting an inflammatory molecule called interleukin-17a was administered. During their final session in the previously shocked cage, these mice displayed about half the freezing response of those that did not receive the medication.

Further analysis revealed that immune cells in brain regions known as subcutaneous organs have receptors for this inflammatory molecule. Unlike most brain areas, subcutaneous organs lack a blood-brain barrier, a protective layer that limits substance exchange between blood and neurons. Consequently, it serves as a “window to the brain,” allowing it to monitor bodily changes and respond accordingly, according to Sah.

The team discovered that immune cells in this region sense inflammatory signals from the lungs, activating adjacent neurons that relay information to the cerebral cortex, a brain region associated with threat recognition.

Using a specialized compound known as chemogenetics, researchers inhibited this signaling pathway in mice with severe lung inflammation, resulting in a notable decrease in their freezing behavior post-shock.

“In essence, severe lung inflammation can impact higher cognitive functions and the ability to navigate traumatic experiences,” asserts Sah. She posits that similar pathways likely exist in humans, as the brain circuits regulating fear are comparable across species.

Other studies suggest that chronic psychological stress diminishes immune responses. Sah speculates that a heightened immune response, in turn, impairs cognitive functions such as the recognition of a threat’s resolution, possibly due to the body reallocating resources from the brain to combat lung issues.

“This research is crucial for understanding the connection between the body and mind,” states Douglas Vanderbilt from Los Angeles Children’s Hospital. He further discusses how his research indicated that children with severe asthma exhibit more pronounced PTSD symptoms. “What we’re uncovering suggests that these brain-body interactions are intricate, so this is likely not the only pathway,” he notes, pointing out that psychological stress from asthma attacks could also influence PTSD risk.

Sah emphasizes that this pathway might vary in women, as only male mice were utilized in her study, suggesting potential differences across genders that warrant additional investigation.

Ultimately, these discoveries may enhance our ability to identify individuals more susceptible to PTSD. For instance, medical professionals might consider screening children with severe asthma for mental health issues, as proposed by Vanderbilt. He further suggests that this line of research could lead to innovative PTSD treatments, such as immunotherapy aimed at reducing inflammation.

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Source: www.newscientist.com

Four Kitchen Gadgets Set to Transform Your Cooking Experience

Posted on September 26, 2025 by Igor Mitreski

Kitchen gadgets have evolved from air fryers to Spyra Lizards. The latest multipurpose countertop cookers are vying for attention, offering more than just the current essential consumer items.

With their versatility, they aim to become a practical substitute for traditional stove and oven setups.

Compact Yet Potent Steam Rice Cooker

SMEG Countertop Steam Oven features 33 automatic programs – Credit: SMEG

If you’ve ever wondered why restaurant dishes are so succulent, the answer is steam cooking. Steam ovens are prevalent in professional kitchens due to their ability to cook food quickly without drying it out.

Steam transfers more thermal energy than dry air and condenses on the food, delivering that energy directly for faster, more even cooking.

Smeg has ingeniously incorporated the steam rice cooker into the Combi oven, designed compactly to fit on your countertop. Within, the water tank connects to a boiler system.

Selecting the steam function heats the water in the boiler, releasing steam into a spacious 30-liter chamber.

You can also combine steam with roasting for crispy meats, potatoes, or bread, or choose from 10 other functionalities, such as air frying, baking, grilling, and defrosting.

Although its 33 automatic programs may seem daunting, intuitive controls and a steam cleaning feature enhance user-friendliness. Compared to standard ovens, SMEG’s small cavities heat up more quickly and consume less energy.

Smeg 10-in-1 Countertop Combi Steam Oven

The Undisputed Champion of the Air Fryer Market

Daewoo Halogen Air Fryer Oven boasts a maximum capacity of 17 liters, capable of roasting a whole chicken at once – Credit: Daewoo

Several features set Daewoo apart in the competitive Air Fryer landscape.

First, its transparent glass galley provides a 360° view of your food as it cooks, eliminating the need to open the drawer and lose heat while checking.

Second, its standard 12-liter galley can be expanded to 17 liters with extender rings.

While larger countertop ovens like Smeg and Gastroback offer increased capacity, it’s uncommon to find this volume in a dedicated air fryer. Most traditional models max out around 10 liters. This ample space, combined with an adjustable rack, enables you to roast an entire chicken or prepare a full meal at once.

Lastly, unlike conventional air fryers that utilize fans with metal heating coils, Daewoo employs a halogen bulb in conjunction with the fan for faster heating.

The intense heat produced allows for a crispy exterior while maintaining moisture inside. However, caution is advised as overcooking can occur easily. Additionally, halogen air fryers may not be as energy-efficient as regular basket models.

Daewoo Halogen Air Fryer Oven

Versatility in One Device

Ninja Multi-Cooker features nine modes, including air frying, pressure cooking, steaming, grilling, sautéing, dehydrating, yogurt making, and more – Credit: Ninja

The air fryer has long been known for its efficiency and versatility. Nevertheless, manufacturers have extensively enhanced their functionality, integrating features that rival traditional stoves and ovens.

Take, for instance, the Ninja Foodi 9-in-1, which offers not just air frying but also eight additional cooking modes, including pressure cooking, steaming, grilling, sautéing, dehydrating, and yogurt making.

Two distinct lids manage the various functions: a pressure lid for high-pressure cooking and a crisp lid for air frying—which can also be used with the steam feature when the vents are open.

The heating elements and fan within the lid circulate hot air to brown the food effectively.

The bottom heating element provides gentle heat suitable for yogurt or direct heat for baking and sautéing.

It’s a robust appliance that occupies considerable counter space, and the central lid can be quite imposing. However, its energy savings become significant, particularly when preparing family-sized meals.

Ninja Foodi 9-in-1 Multi Cooker

A Pizza Experience Without Flames

Gastroback oven functions as a pizza oven, rotisserie oven, air fryer, and more – Credit: Gastroback

Wood-fired pizza ovens have undergone style and structural upgrades in recent years, leading to their increased presence even in smaller outdoor spaces.

For those without gardens—or who prefer convenience—an all-in-one countertop oven brings the quick cooking and delicately crisp results you desire.

The Gastroback Design Oven Air Fry & Pizza is equipped with six heating elements—four on top and two bottom—that allow for individual control, providing precise heat management for various functions.

Air frying, baking, roasting, dehydrating, and thawing utilize all elements in combination with a built-in convection fan.

The upper elements are ideal for browning and grilling, while the lower elements are suited for reheating pastries and toast.

By removing the rack and adding skewers, the Gastroback can transform into a rotisserie oven. Alternatively, you can employ a ceramic pizza stone with the upper heating elements for pizza.

In its 22-liter chamber, the Gastroback warms up more rapidly than a larger traditional oven.

Energy savings are most apparent with small dishes or quick meals; however, using it solely for toasting or reheating may compromise efficiency as smaller appliances might perform just as well.

One trade-off with the Gastroback’s size is the reduced capacity for larger dishes compared to a conventional 60-liter oven. With numerous features and accessories, the learning curve may seem daunting at first.

Gastroback Design Oven Air Fry & Pizza

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Source: www.sciencefocus.com

Stunning Images Capture Efforts to Save the Javan Slow Loris

Posted on September 26, 2025 by Igor Mitreski

Javanese slow loris reacts while receiving snacks at Ujung Kulon National Park

Garry Rothulung

These images depict the release of Javan Slow Lorises into Ujung Kulon National Park in Java, Indonesia, last month.

Photojournalist Garry Rothulung has joined the Indonesia International Animal Rescue Agency team. The nonprofit Initiatives for Environmental Rehabilitation in Indonesia (Yiari) released a Javan Slow Loris and transported the animals back to their habitat (as shown below).

Volunteers transporting Javan slow loris

Garry Rothulung

The Javan slow loris (Nycticebus javanicus) is critically endangered due to rainforest habitat loss and being captured for the pet trade or for traditional medicine. These animals often have their teeth removed, which prevents them from eating in the wild. However, rescued individuals can be rehabilitated, and Yiari works to release them back into their natural environment.

Javan slow loris can be seen during the habituation process

Garry Rothulung

While the slow loris appears adorable, it is one of the few poisonous primates in the world. When threatened, they raise their arms to mix secretions from their elbow glands with their saliva, creating a toxic substance.

Volunteers observe slow loris in Java

Garry Rothulung

This dual-action defense mechanism is characteristic of the slow loris. While the biology of their venom is not fully understood, their bites can cause severe pain, slow healing, and may provoke allergic reactions. The venom also serves to protect their fur from parasites such as mites and fleas.

These animals received vitamins (as shown in the main image) and were placed in a monitoring enclosure (see above). “They will be observed for several days to two weeks to help them acclimate to the wild before their permanent release,” Rothulung explains.

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Source: www.newscientist.com

A Fascinating Exploration of Neanderthal Extinction: A True Literary Gem

Posted on September 26, 2025 by Igor Mitreski

Ludovic Slimak contributed to revealing the remains of Thorin, a Neanderthal

Laure Metz

The Last Neanderthal
Ludovic Slimak (translated by Andrew Brown) (Polity Press (UK, September 26, US, November 24))

Chance findings of Neanderthal skeletons, hardened soot, and small arrowhead tools beneath leaves at the French Grotte Mandrin have reshaped not only our perception of Neanderthals but also our understanding of early Homo sapiens migrations into Europe.

More intriguingly, this cave has unveiled insights about the initial interactions between the two groups and the reasons behind the success of one species and the extinction of another. This pivotal issue is explored in The Last Neanderthal: Understanding How Humans Die, a new work by Ludovic Slimak, a paleontologist from the University of Toulouse who spearheaded the excavations at Grotte Mandrin.

The narrative focuses on Thorin, a Neanderthal fossil unearthed in 2015 at the cave’s entrance, which revealed five teeth during the excavation. The delicate recovery of this singular discovery required painstaking care, extracting each grain of sand with tweezers over seven years to uncover fragments of his skull and hand.

This investigation led to a riveting quest that spanned years, employing various dating methods that initially yielded starkly conflicting timelines for Thorin’s existence. Ultimately, it was determined that the fossils date between 42,000 and 50,000 years ago. The last known Neanderthal population went extinct around 40,000 years ago . Remarkably, Thorin’s genome was sequenced, revealing a previously unknown lineage that diverged from the primary Neanderthal population more than 50,000 years ago and later experienced extreme isolation.

The Last Neanderthal is a deeply introspective and philosophical work, evoking a vivid sense of what it would have meant to explore Thorin’s existence and the myriad groups that inhabited the cave over millennia. Slimak notes that the unique scent of Grotte Mandrin originates from ancient fire soot preserved within the calcite layers of its walls, forming a distinctive ‘barcode’. This barcode can be accurately dated, providing timelines for various occupations and indicating that Homo sapiens arrived just six months after the Neanderthals vacated the cave. The book reveals that Thorin appears unexpectedly, causing Slimak to express his astonishment, stating, “I did not expect to find a Neanderthal body lying by the roadside, walking through the forest like that. It’s astonishing.”

The jaw of Thorin, a Neanderthal fossil unearthed in 2015

Xavier Muth

This prompts further contemplation about the reasons behind the Neanderthals’ extinction. Although much discussion centers around their decline due to competition with Homo sapiens or climate shifts caused by volcanic eruptions and magnetic field reversals, Slimak offers a fresh perspective. He highlights that the evidence found at Grotte Mandrin points to a layer of small triangular stone points used as arrows by the earliest Homo sapiens, who arrived around 55,000 years ago.

These artifacts bear a striking resemblance to those produced by Homo sapiens at the Ksar Akil site in Lebanon, located nearly 4,000 km away and dating to a similar timeframe. This suggests that these early humans exhibited a far more sophisticated method of sustaining and standardizing practices across extensive social networks, leading Slimak to conclude they had a much more effective “way of life” compared to the Neanderthals, who lived in smaller, isolated groups lacking such consistency.

While one might envision a dramatic battle between Homo sapiens and Neanderthals, the reality was notably different. Slimak draws parallels with the collapse of numerous indigenous communities in post-colonial regions globally, asserting that Neanderthal groups gradually disintegrated when faced with others who possessed a more efficient existence. “The demise of humans reflects the disintegration of their worldview… not through overt violence, but through whispers,” he observes.

“
The bones were painstakingly excavated using tweezers to remove one grain of sand at a time.
“

Although it is profoundly melancholic to ponder, immersing oneself in the realm of these vanished beings through The Last Neanderthal is a unique privilege.

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Ancient Humans/
Book Review

Source: www.newscientist.com

Baby’s Brain Development May Affect Their Slow Adaptation to Mites Compared to Adults

Posted on September 26, 2025 by Igor Mitreski

The infant’s brain functions at a distinct rhythm compared to that of adults

Goodles/Aramie

When infants attempt to comprehend their surroundings, their brain activity reveals slower rhythms compared to adults, aiding them in grasping new concepts.

Our brains utilize a network of neurons to interpret sensory input. When a neuron receives a sufficiently strong signal from its neighbor, it transmits that signal to other neurons, generating synchronized waves of electrical activity that alternate between activated and silent states.

These brain waves manifest at various frequencies. A specific brain area may show a greater proportion of neurons synchronized to one frequency over others if it exhibits a range of frequencies simultaneously. For instance, prior research indicates that the adult visual cortex displays a diverse range of frequencies when individuals are observing stimuli, but in higher proportions, more neurons synchronize with the waves at a frequency of 10 hertz.

To determine if the same holds true for infants, Moritz Kester from the University of Regensburg in Germany along with his colleagues enlisted 42 eight-month-olds via their parents. The researchers recorded the infants’ brain activity with electrodes affixed to the scalp, exposing them to dozens of friendly cartoon monsters for about 15 minutes, each monster flashing for two seconds.

The team relied on the fact that brain waves tend to oscillate in sync with rapidly flickering images, enabling them to assess the number of neurons synchronized to various frequencies within the infants’ visual cortex. Each monster was toggled on and off at eight different frequencies ranging from 2 to 30 hertz.

Analysis of the brain activity data revealed that the visual cortex produces waves of synchronized activity in response to the flickering cartoons. However, the most prominent signals emerged at four hertz, indicating greater synchronization with this flicker frequency than with others.

Moreover, this 4-hertz signal was consistently present even when the brain was exposed to flickering at higher frequencies, such as 15 hertz. “What’s particularly intriguing is that regardless of the different frequencies presented, a response at 4 hertz was always observed,” comments Kester.

This rhythm falls within a frequency band known as theta, which is associated with the formation of new concepts, potentially facilitating learning for young children as they observe their environment. “It suggests that infants are in a specific learning mode,” Kester explains.

Researchers supporting this theory further discovered that there were no 4-hertz EEG signals in the visual cortex, nor EEG signals at other frequencies, suggesting a broader neural circuit involvement in other brain areas related to concept formation.

Repeating the experiment with seven adults confirmed prior findings that visual brain circuits are predominantly activated by the 10 hertz frequency, which was also found to persist in the background despite varying speeds of the cartoon flickering.

Given adults’ extensive experiences, it appears that the visual sections of their brains are fine-tuned to respond to more frequent stimuli. They block irrelevant information and concentrate on acquiring conceptual knowledge, states Kester.

Further research is necessary to establish whether exposure to 4 hertz flickering images can enhance infants’ capacity to learn new concepts, according to Emily Jones at Birkbeck, University of London. The team is hopeful to gain further insights in an ongoing study, Kester added.

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Source: www.newscientist.com

Did a Star Explode and Strike Earth 10 Million Years Ago?

Posted on September 26, 2025 by Igor Mitreski

A supernova may have directed cosmic rays towards Earth

Muratart/Shutterstock

Approximately 10 million years ago, a volatile star might have unleashed cosmic rays toward Earth, and astronomers are currently narrowing down the potential culprits behind this cosmic event.

Earlier this year, Dominique Koll of Helmholtz Zentrum Dresden-Rossendorf and his colleagues in Germany discovered a spike in radioactive beryllium trapped in five kilometers of sediment in the Pacific Ocean, dating back over 10 million years. This form of beryllium is generated exclusively when cosmic rays collide with the Earth’s atmosphere, leading Koll and his team to hypothesize that a supernova explosion might be the origin of this event.

Nonetheless, alternative explanations cannot be dismissed. These include the Sun’s magnetic influence on Earth at that time and the possibility of ocean currents from Earth’s poles contributing to beryllium deposition, areas where cosmic rays and beryllium production are typically more intense.

Now, Efrem Maconi from the University of Vienna and his team have pinpointed two likely supernova candidates using data obtained from the Gaia space telescope.

By examining the trajectories of roughly 2,700 stars near our Sun over the past 20 million years and assessing their potential to produce supernovae, Macconi and his colleagues determined that there is a 70% probability of such events occurring among these star clusters.

Researchers have identified two possible progenitors for the explosion. The most probable one, located about 200 light years away, is a relatively young cluster named ASCC 20, while the cluster OCSN 61, situated further away, is also a potential source.

Additional support for the supernova theory is that 10 million years ago, our solar system was engulfed in a bustling region of the galaxy, surrounded by extensive clouds of gas, dust, and stars known as the Radcliffe waves.

“This is a promising indication that warrants further investigation,” says Koll. “If [Maconi] were to claim we could fully eliminate this possibility, I would happily accept that as a solid conclusion. However, in this instance, it certainly remains intriguing.”

Further modeling of stellar movements will be necessary to ascertain whether these stars indeed played a role, yet this hypothesis aligns well with other findings in Earth’s geological history. Unlike cosmic rays that travel close to the speed of light, dust moves much slower, making it plausible that beryllium spikes resulted from cosmic rays from a supernova initially impacting Earth.

World Capital of Astronomy: Chile

Explore the astronomical wonders of Chile. Visit some of the most cutting-edge observatories and gaze at the stunning starry skies beneath some of the clearest atmospheres on Earth.

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Source: www.newscientist.com

Stunning Images Uncover the Hidden World of Fascinating Plants and Fungi

Posted on September 26, 2025 by Igor Mitreski

Brugmansia Suaveolens

Jill Pflugheber and Steven F. White

For millennia, individuals have harnessed the transformative power of plants and fungi, using substances like ayahuasca, cannabis, psilocybin mushrooms, and tobacco in spiritual ceremonies to reshape their perceptions of reality.

Recently, a new book sheds light on these psychoactive and medicinal plants and fungi, revealing their intricacies through advanced microscopy techniques.

Virola theiodora

Jill Pflugheber and Steven F. White

Utilizing confocal microscopy, which employs laser scans at varying depths to produce sharply focused images of intricate specimens, this advanced technique is primarily used in academic research.

Neltuma pallida

Jill Pflugheber and Steven F. White

Jill Pfluber from the University of Kentucky applied confocal microscopy to explore 50 revered plants and fungi across the United States. Her findings contribute to Microcosm: Sacred Plants of the Americas, a publication co-authored with independent historian Stephen F. White.

Cannabis

Jill Pflugheber and Steven F. White

The outcome is a captivating exploration into the hidden complexities of some of the world’s most esteemed plant species, as explained by White. He emphasizes their goal of creating “plant art” that challenges and enriches people’s understandings of sacred plants. “We aspire for those who encounter Microcosm to develop a newfound respect for these plants,” he states.

Theobroma cacao

Jill Pflugheber and Steven F. White

From their primary photography, the images present some results of their exploration: Brugmansia Suaveolens; Justicia Pecteris; Virola theiodora; Neltuma pallida; Cannabis; and Theobroma cacao.

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Source: www.newscientist.com

How Fast Does the DNA Repair Leader in Your Cells Take Control?

Posted on September 26, 2025 by Igor Mitreski

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One factor in our aging process is the buildup of mutations in our cellular DNA.

Mohammed Elamine Aliwi / Alamy

Clusters of proteins seem to significantly influence the rate of DNA repair within our bodies, which in turn determines how quickly mutations accrue in cells throughout one’s life. This dynamic can significantly influence both aging and lifespan.

“It is a very reliable indicator of lifespan across humans and other animals,” states Trey Ideker from the University of California, San Diego. His research team aims to discover treatments that might enhance lifespan by increasing DNA repair mechanisms.

Some researchers assert that the evidence linking this specific protein complex—a collection of two or more proteins that collaborate for a biological function—to mutation rates is compelling. However, more investigation is necessary to concretely establish the relationship between aging and longevity.

Regarding why we age, one proposed theory is that it results from the gradual accumulation of mutations in cellular DNA. As these mutations pile up, the functionality of cellular machinery declines, leading to a cascade of issues.

Cells act like repair teams that address broken DNA, yet their efforts aren’t always adequate. In fact, the efficacy of DNA repair varies, likely influenced by genetic factors.

Ideker’s team has currently compiled evidence indicating that a protein complex known as Dream acts as a master regulator of DNA repair. This complex operates like a supervisor for the repair team. Each complex, potentially existing in numerous identical copies in every cell, is formed by various proteins, and the acronym DREAM reflects the names of its components.

Initially, DREAM was thought to control cell division, but it is now known to repress hundreds of genes tasked with DNA repair, including BRCA2, a gene that heightens breast cancer risk when mutated.

The research group created a metric for DREAM activity by scrutinizing the over 300 genes they initially manage. “This study aims to demonstrate unmistakably that high DREAM activity correlates with increased aging and reduced longevity, while low DREAM activity is favorable for longevity,” he explains.

Using data from studies involving over 100,000 mouse cells across various tissues, the researchers established that cells exhibiting greater DREAM activity harbor more mutations. Subsequently, they examined data from 92 mammalian species and confirmed a strong correlation between reduced DREAM activity and extended maximum lifespans.

In another facet of their experiment, they scrutinized data from a study involving 90 cells, including 80 individuals with Alzheimer’s disease, discovering a connection between DREAM activity and increased risk.

The team also engineered mice to lack the DREAM complex; this was a challenging task since each constituent protein has a unique role, and the entire complex is crucial for cell division early in development. Mice without it would not survive.

To navigate this challenge, they employed a drug-induced genetic strategy to deactivate the DREAM genes when the mice reached 8 weeks of age. The knockout mice exhibited 20% fewer deletion and insertion mutations in brain cells compared to their normal counterparts as they aged, though Ideker notes that the disruption to their lifespan didn’t reflect a significant extension. “The experimental design may not have been suited to uncover that,” he admits. “We now aim to conduct a more conclusive experiment linking it to extended lifespan.”

Despite this, Ideker believes the amassed evidence paints a clear picture. “Our findings indicate that DREAM plays a crucial role in aging and is indeed a significant factor in the accumulation of lifelong mutations,” he asserts.

“These are groundbreaking and significant findings,” remarks Joe ã O Pedro de Magalhães from the University of Birmingham, UK. “The data from their mouse studies indicate a causal connection between DREAM and mutation levels,” he notes; however, the researchers haven’t yet established a direct causal link with aging. “To prove this, we must demonstrate that mice exhibiting low mutation rates also enjoy increased lifespans.”

This illustrates why the theory that mutation accumulation is a key factor in aging remains unproven. Advocates like Ideker reference conditions such as Progeria, wherein individuals age prematurely due to compromised DNA repair mechanisms. Others, including de Magalhães, cite a lack of evidence that simply accumulating mutations is a driver of typical aging, although it does correlate with heightened cancer risk.

Even should DREAM complexes prove instrumental in aging, their multifaceted functions complicate the development of treatments. “Achieving a total loss of DREAM functionality, as we have done, may be too drastic,” advises team member ZANE KOCH from UCSD. “Mildly suppressing DREAM could be the optimal approach for extending lifespans.”

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Source: www.newscientist.com

Atmospheric Disturbance Caused Temperature Surge in Antarctica

Posted on September 26, 2025 by Igor Mitreski

The Antarctic is experiencing higher temperatures than expected

Eyal Bartov / Alamy

Since early September, air temperatures in Antarctica have soared beyond 35°C (63°F), accompanied by a significant reduction in wind speeds, with ozone depletion halting unexpectedly.

This scale of change is typically anticipated only every two decades, according to Martin Zicker from the University of New South Wales, Sydney, Australia. However, such phenomena appear to be occurring with increasing frequency, with similar transient disruptions noted last year, alongside more severe occurrences in both 2019 and 2002.

Jucker observes that four of these events have appeared within just 25 years, indicating ongoing unpredictable shifts in the global climate system.

Typically, air temperatures in Antarctica hover around -55°C (-67°F), but have been unrelentingly rising to -20°C (-4°F) since September 5th. Although still extremely cold, this shift has resulted in the polar vortex winds decreasing relatively gently to 100 km/h.

While this warming event has not yet met the formal criteria for sudden stratospheric warming, Jucker notes that for that classification to apply, the winds need to cease entirely—not just for weeks but in response to the warmth itself. He warns that the repercussions in the Southern Hemisphere could be dramatic over the ensuing months.

Initially, Australian meteorologists forecast a wetter spring than normal, but they are now signaling potential impacts from a powerful system over western Australia, likely pushing the region into warmer and drier conditions.

Unusual weather patterns may persist. Jucker indicates that one possible scenario could see a return of the polar vortex, bringing atmospheric temperatures back to their typical averages.

Conversely, the temperature anomaly might continue, with expectations of further increases up to 20°C (36°F). This could lead to erratic weather in the higher latitudes of the Southern Hemisphere.

The reason behind this anomaly remains unclear scientifically, but Jucker asserts that it’s almost guaranteed that rising sea surface temperatures in the Pacific Ocean, possibly increasing by 1°C (1.8°F) to 3.6°F, are connected.

“The presence of three significant typhoons in the Pacific can be traced to these warmer sea temperatures,” remarks Jucker. “We’ve witnessed markedly strange weather patterns over the last two years, coinciding with this substantial rise in ocean temperatures.”

Edward Dodridge from the University of Tasmania in Hobart, Australia, emphasizes the array of extreme changes occurring at the southernmost point of the globe. Recent years have seen a dramatic deceleration in sea ice loss, heatwaves, widespread breeding failures among Emperor Penguin colonies, and shifts in Antarctic circulation.

“Antarctica continues to astonish us,” he notes. “While each change is noteworthy on its own, my primary concern is witnessing shifts that not only reinforce themselves but also ripple through various components of the Antarctic ecosystem.”

“The loss of summer sea ice facilitates the fracturing of ice shelves, which in turn accelerates ocean warming. This warmer seawater melts the remaining ice shelves at an increased rate.”

Fire and Ice: Exploring Iceland

Experience thrilling days filled with volcanic and geological exploration. Discover Iceland’s stunning landscapes and seize the evening chance to witness the Aurora Borealis in October.

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Source: www.newscientist.com

This Device Lets You Cultivate Your Own Meat at Home

Posted on September 26, 2025 by Igor Mitreski

Growing your own fruits and vegetables isn’t a novel idea. But what if you could cultivate your own meat right at home? This is the vision that Japanese companies are striving to turn into reality.

Shojinmeat Project empowers individuals to grow their own meat, much like planting vegetables, without harming any animals in the process.

This innovation is known as cultivated meat, created by harvesting some animal cells and nurturing them in tanks referred to as bioreactors. It’s authentic meat, but it doesn’t come from farms or slaughterhouses.

What is the Shojinmeat Project?

Yuki Hanu serves as the founder and director of the Shojinmeat project, describing his company as a non-profit citizen science initiative. The goal is to allow chefs and food lovers to grow custom meat on location.

While the project hasn’t completely perfected the growth of whole pork cuts yet, it has made promising progress.

“We’ve successfully established completely DIY methods for cultivating animal cells,” Hanu remarks. The project plans to provide instructions for growing small amounts of meat at home, including a shopping list of easily accessible items you can find online or locally.

A spin-off of the Shojinmeat Project, Integrated Culture, has developed a bioreactor system that can be used in both household and restaurant settings. Although it’s pre-assembled and slightly less DIY than the Shojinmeat kit, Hanu claims it’s significantly cheaper than traditional lab-grade bioreactors used in commercial meat production.

Integrated Culture provides more variety; according to Hanu, their bioreactors can grow over 30 types of cells from various animals and fish. “However, it is an industrial process,” he adds.

In comparison, Shojinmeat suggests using chicken for home cultivation, as it’s easier to source and grow than other types of meat.

Individuals looking to grow their own meat can select from various Integrated Culture kits in different sizes or get advice from the Shojinmeat project to build their own setups – Credit: Shojinmeat Project

Understanding the Process

So, you’ve decided to grow your own chicken at home. What’s the first step? It’s time for some shopping.

The Shojinmeat project presents a list of items that can be sourced from supermarkets or online, amounting to around 60,000 yen (about £300 or $400).

Essential items to gather include fertilized chicken eggs, warm towels, sports drinks, and collagen-coated dishes, though you can modify the components as you like.

The aim is to replicate the conditions found in lab cell cultures. Hanu explains: “Once the right cells are placed in the appropriate medium, they will grow under the right conditions for a set duration.”

Once you’ve obtained everything necessary, extract the cells from the fertilized chicken eggs and maintain them at a temperature of 37°C (98.6°F) with a pH of 7.4.

This is where an incubator comes in handy, but fortunately, the towels can serve a warming purpose.

Chicken cells require attachment to a structure known as a cell scaffold, fulfilled by your collagen-coated dishes.

Additionally, the cells need a supply of sugar, amino acids, vitamins, and minerals, which Hanu refers to as the “basal medium.” This is where your sports drink comes into play.

If you’re not inclined to manage all these individual components, you can opt for the Cellular Agriculture Starter Kit from Integrated Culture. It includes all essential basal media, serum, starter cells, and necessary cell scaffolds, though it starts at a minimum of £440 ($600).

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Safety is understandably a concern when preparing food, especially meat. However, according to Hanu, the key priority once you’re operational is to keep your equipment clean, which should help mitigate issues with your homemade meat.

“It’s crucial to prevent contamination from mold, bacteria, and other unwanted elements,” he points out. “This is the most frequent cause of failure in cell culture.”

One effective strategy is to add egg whites containing a naturally antibacterial protein called lysozyme. Although Hanu emphasizes this is not 100% foolproof, it’s just one of several measures to help your cells flourish.

Remember to cook your meat before consuming it, just like you would with any other raw chicken, to avoid foodborne illness.

Once operational, the primary challenge is maintaining a clean environment to prevent contamination – Credit: Shojinmeat Project

Results: A Small Yield

After all this effort, you may hope for sufficient cells to produce a whole roast chicken. However, you might come away a bit let down.

Hanu indicates that the Shojinmeat method can currently yield around one gram of edible meat.

“Creating meat effectively at home has been made possible through the development of equipment and protocols, but the volume and quality of what you can produce requires further consideration,” he states. “At present, it might be rather modest, but it’s termed ‘DIY cell culture.’”

Hanu acknowledges that his homemade meat sample was too small to be used in recipes, adding:

Not only is the quantity of homegrown meat lacking, but cultivated meat in laboratories can replicate intricate textures that mimic real meat fibers using plant fibers and 3D printing. However, homemade versions haven’t achieved this level yet.

“Generating full muscle tissue with marbling and texture involves sophisticated tissue engineering,” Hanu explains. “With our technology, our products are cultured cytoplasmic, yielding a final product more akin to spam or sausage.”

If you still dream of producing gourmet chicken sausage at home, these DIY kits could help make that a reality.

Who knows? In a few years, your newest kitchen gadget may not be an air fryer; instead, an incubator could be quietly nurturing your rib-eye steak right beside it.

read more:

Source: www.sciencefocus.com

Our Universe Might Be Enclosed Within a Black Hole

Posted on September 26, 2025 by Igor Mitreski

The Big Bang may have been an explosive rebound from a collapsing black hole.

According to a new study led by Enrique Gastagnaga at the University of Portsmouth, this paper posits that the Big Bang was actually a “big bounce,” triggered when matter fell into a massive, compressed black hole, leading to a rebound and subsequent expansion that formed the universe.

“In essence, our entire observable universe could exist within a black hole in a larger universe,” Gastagnaga stated. BBC Science Focus.

I was trapped in event horizon

A recently published study in Physical Review D re-evaluated the fate of a dense, large gas cloud collapsing under its own gravity.

Instead of leading to an infinitely dense point known as a singularity, this research suggests that the collapse halts at a certain point before bouncing back.

This rebound initiates a rapid expansion akin to what cosmologists theorize occurred post-Big Bang. In a way, our reality might be trapped at the event horizon of a black hole.

The “black hole universe model” offers insights into key issues concerning the current mainstream understanding of cosmology known as the standard model.

The standard model necessitates a period of inflation, suggesting the entire cosmos expanded rapidly just moments after the Big Bang. It also involves “dark energy,” the elusive material responsible for the universe’s expansion.

“However, we lack a true understanding of these components,” Gastagnaga noted. “Conversely, both phases of rapid expansion arise naturally in the black hole universe model, attributed to its bounce geometry and dynamics.

“One compelling aspect of this model is its simplicity. It relies solely on gravity and quantum mechanics to elucidate the expansion, inflation, and dark energy of the universe without requiring additional assumptions or unknown elements.”

The black hole universe model does face its own distinct challenges. For instance, dark matter remains poorly understood. We recognize the presence of this invisible material throughout the universe, holding galaxies together, yet astronomers struggle to identify its nature.

“Certain forms of dark matter could be linked to remnants from our universe’s collapse phase, but further exploration of this idea is necessary,” Gastagnaga revealed.

Our entire universe might be confined within the event horizon of a black hole – Credit: Getty Images

If the universe originated in a black hole, we could still exist within one. Some of the black holes we observe might represent mini cosmos, each with their own miniature black holes.

“This can be envisioned as a nested structure—one black hole within another, akin to Russian nesting dolls,” Gastagnaga explained.

However, not every one of the trillion black holes in our universe necessarily contains its own miniature cosmos, as the size of the black holes influences the time available for small structures to form.

“Large black holes (like ours) allow for the development of galaxies, stars, and planets, while smaller ones may evolve too rapidly for anything noteworthy to occur,” Gastagnaga stated.

“This is crucial because gravitational collapse predicts the existence of significantly smaller black holes than the large ones. The fact that we reside within one of the rare, very large cases might not simply be a coincidence.

The concept of a black hole universe emerged when Gastagnaga and his team adopted a new perspective on the origins of our universe.

“Rather than assuming the universe began with an inexplicable ‘bang’, we reversed our approach, starting with matter collapsing into a black hole,” he detailed.

It all revolves around the principle of quantum exclusion principle. In brief, this principle asserts that two identical particles cannot occupy the same space at once.

Thus, there exists a limit to how densely particles can be arranged before compaction becomes untenable according to the quantum exclusion principle.

This limitation is one reason why stars like white dwarfs do not simply collapse under their own weight.

“The exclusion principle is also applicable to some black holes,” Gastagnaga explained. “It halts material from collapsing into a singular point by slowing the process, stopping it at high density, causing a bounce, and entirely avoiding singularity.”

Relic black hole

The theory that the universe began with the Big Bang is sound in theory, but cosmologists cannot confirm its validity until it undergoes testing.

Fortunately, this theory generates specific predictions regarding the appearance of our universe, allowing astronomers to assess its validity.

“We predict that the universe is slightly curved; it behaves like a sphere but isn’t perfectly flat,” Gastagnaga explained.

The first direct visual evidence of a black hole (at the heart of the elliptical galaxy Messier 87 in the Virgo constellation) was captured by the Event Horizon Telescope in April 2017. -Photo Credit: EHT Collaboration

Most efforts to measure the universe’s curvature have indicated it is flat, but there may exist subtle bends that current methods are not sensitive enough to detect. Hence, the European Space Agency’s Euclidean spacecraft is engaged in the most precise measurements of cosmic curvature to date, with completion expected by 2030.

“It also predicts the presence of Relic black holes and Relic neutron stars—objects that survived the bounce and formed during the collapse stages, which may still exist today,” Gastagnaga added.

These relics could have shaped the evolution of galaxies and stars over time. There is potential to identify the signatures of these artifacts in our current observations of the universe, revealing whether they reside within black holes.

read more:

Source: www.sciencefocus.com

Studies Suggest the 1-Million-Year-Old Yunxian Fossil Is an Early Hominid

Posted on September 26, 2025 by Igor Mitreski

Different varieties of Homo, such as Homo Longhi, coexisted during the mid-Pleistocene era. The debate over whether these fossilized humans represent distinct species continues. The 1-million-year-old Yunxian 2 skulls from China are crucial for understanding the beginnings of Homo. In a recent study, paleontologists applied cutting-edge technology to recover and reconstruct the distorted Yunxian 2 fossils. Their findings indicate that this skull exhibits both primitive and advanced features in a mosaic pattern. Team analysis proposes that it belongs to an early Asian branch of Homo Longhi, which is closely related to Denisovan and is a significant part of the clade leading to Homo sapiens.

Reconstruction of Homo Longhi in its habitat. Image credit: Chuang Zhao.

Fossil evidence indicates the presence of multiple forms of Homo during the mid-Pleistocene period.

A significant portion of what we know about human evolution and archaic humanity is based on fossil skulls.

Nonetheless, many specimens from this time are damaged or deformed, creating uncertainty in species classification.

For instance, three human skulls from the Yunxian site in China, dating back nearly a million years, exhibit a mix of primitive traits.

The two already known Yunxian fossils, Yunxian 1 and 2, both show distortion. The newly discovered Yunxian 3 skull is still under analysis.

In this recent study, Dr. Xiaobo Feng, affiliated with Shanghai University and Huqiaotech University, along with his research team from the Yunxian Man Site’s Garden Team Laboratory, utilized advanced CT scanning and digital reconstruction methods to address the compression and distortion present in Yunxian 2.

The team’s analysis reveals a blend of previously unidentified primitive and derived characteristics, suggesting that this fossil belongs to the Asian Homo Longhi clade, closely related to Homo sapiens, which may include Denisovan traits.

Individuals within the Homo Longhi clade display distinctive traits, such as a larger cranial capacity, narrower eye spacing, a pronounced graveller depression, and a lower elongated frontal bone, all of which are evident in the Yunxian 2 fossils.

Researchers further posit that the Yunxian fossil is likely the oldest within the Homo Longhi clade, making it particularly significant.

“With geological ages ranging from 0.94 to 1.1 million years, Yunxian is closely aligned with the theoretical origins of the Longhi and Sapiens clades,” the team stated.

“Phylogenetically, it is nested within the Homo Longhi clade. However, its mosaic characteristics retain some plesiomorphic traits seen in Homo Erectus and Homo Elgustar. While Kabwe and Petralona show shared apomorphic traits, Homo Longhi and Homo sapiens may exhibit transitional functions close to the clade’s origin.”

“The narrow temporal gap between Yunxian and the deeper Longi nodes suggests a swift, early diversification of the Longi clades, similar to those of Sapiens and Neanderthals.”

A study detailing these findings will appear in the journal Science this week.

____

Xiaobo Feng et al. 2025. The phylogenetic position of the Yunxian head in relation to Homo Longhi and Denisovan. Science 389 (6767): 1320-1324; doi: 10.1126/science.ado9202

Source: www.sci.news

Using Lasers, Fiber Optics, and Subtle Vibrations to Develop Earthquake Warning Systems

Posted on September 26, 2025 by Igor Mitreski

When the Mendocino earthquake erupted off the California coast in 2024, it shook structures from their very foundations, triggered a 3-inch tsunami, and sparked intriguing scientific investigations in the server room of a nearby police station.

More than two years prior to the quake, scientists had installed a device known as the “Dispersed Acoustic Sensing Interrogation Room” at the Alcata Police Station located near the coast. This device utilizes a laser directed through a fiber optic cable that provides internet connectivity to the station, detecting how the laser light bends as it returns.

Recently, researchers revealed in a study published in the Journal Science that data collected from fiber optic cables can effectively be used to “image” the Mendocino earthquake.

This research demonstrates how scientists can convert telecommunication cables into seismometers, providing detailed earthquake data at the speed of light. Experts noted that this rapidly advancing technology has the potential to enhance early earthquake warning systems, extending the time available for individuals to take safety measures, and could be critical for predicting major earthquakes in the future.

James Atterholt, a research geophysicist for the US Geological Survey and lead author of the study, stated, “This is the first study to image the seismic rupture process from such a significant earthquake. It suggests that early earthquake warning alerts could be improved using telecom fibers.”

The study proposes equipping seismometers with devices capable of gathering sparse data from the extensive network of telecommunications cables utilized by companies such as Google, Amazon, and AT&T, making monitoring submarine earthquakes—often costly—more affordable.

Emily Brozky, a professor of geoscience at the University of California, Santa Cruz, asserted that “early earthquake warnings could be dramatically improved tomorrow” if scientists can establish widespread access to existing communication networks.

“There are no technical barriers to overcome, and that’s precisely what Atterholt’s research emphasizes,” Brozky mentioned in an interview.

In the long term, leveraging this technology through fiber optic cables could enable researchers to explore the possibility of forecasting some of the most devastating earthquakes in advance.

Scientists have observed intriguing patterns in underwater subduction zones prior to significant earthquakes, including Chile’s magnitude 8.1 quake in 2014 and the 2011 Tohoku earthquake and tsunami in Japan.

Both of these major earthquakes were preceded by what are known as “slow slip” events that gradually release energy over weeks or months without causing noticeable shaking.

The scientific community is still uncertain about what this pattern signifies, as high-magnitude earthquakes (8.0 or greater) are rare and seldom monitored in detail.

Effective monitoring of seismic activity using telecommunications networks could enable scientists to accurately document these events and assess whether discernible patterns exist that could help predict future disasters.

Brodsky remarked, “What we want to determine is whether the fault will slip slowly before it gives way entirely. We keep observing these signals from afar, but what we need is an up-close and personal instrument to navigate the obstacles.”

While Brodsky emphasized that it’s still unclear whether earthquakes in these extensive subduction zones can be predicted, she noted that the topic is a major source of scientific discussion, with the new fiber optic technology potentially aiding in resolving this issue.

For nearly 10 years, researchers have been investigating earthquake monitoring through optical fiber cables. Brodsky stated that the study highlights the need for collaboration among the federal government, scientific community, and telecommunications providers to negotiate access.

“There are valid concerns; they worry about people installing instruments on their highly valuable assets and about the security of cables and privacy,” Brozky explained regarding telecom companies. “However, it is evident that acquiring this data also serves the public’s safety interests, which makes it a regulatory issue that needs to be addressed.”

Atterholt clarified that fiber optic sensing technology is not intended to replace traditional seismometers, but rather to complement existing data and is more cost-effective than placing seismometers on the seabed. Generally, using cables for earthquake monitoring does not interfere with their primary function of data transmission.

Jiaxuan Li, an assistant professor of geophysics and seismology at the University of Houston, noted he was not involved in the study but mentioned that there are still technical challenges to the implementation of distributed acoustic sensing (DAS) technology, which currently functions over distances of approximately 90 miles.

Li also pointed out that similar methods are being employed in Iceland to monitor magma movements in volcanoes.

“We utilized DAS to facilitate early warnings for volcanic eruptions,” Li explained. “The Icelandic Meteorological Office is now using this technology for issuing early alerts.”

Additionally, the technique indicated that the Mendocino tremors were rare “supershear” earthquakes, which occur when fault fractures advance quicker than seismic waves can travel. Atterholt likened it to a fighter jet exceeding the speed of sound.

New research has serendipitously uncovered patterns associated with Mendocino, providing fresh insights into this phenomenon.

“We still have not fully grasped why some earthquakes become supershear while others do not,” Atterholt reflected. “This could potentially alter the danger level of an earthquake, but the correlation remains unclear.”

Source: www.nbcnews.com

The Reconstructed Skull Reveals Fascinating Insights into Our Mysterious Ancestor

Posted on September 26, 2025 by Igor Mitreski

The Yunxian 2 skull, although deformed, has been reconstructed to resemble an early Denisovan.

Gary Todd (CC0)

Our species’ origins may extend further back than previously believed, and the same could hold true for both our extinct Neanderthal and Denisovan relatives. A recent analysis of fossil remains suggests that the common ancestors of these groups emerged over a million years ago.

“If these ancient divergences are accurate, we might be overlooking significant details about the early history of these lineages,” states Chris Stringer from the Natural History Museum in London.

This finding could clarify the search for “ancestor X,” the lineage from which modern humans, Neanderthals, and the population that produced the Denisovans descended. It also may imply that the Denisovans were our closest relatives, potentially even closer than Neanderthals—a point that remains debated.

Stringer and his research team, which includes Xijun Ni from the Institute for Vertebrate Paleontology and Paleoanthropology in Beijing, revisited the Yunxian fossil collection located in central China.

Two partial skulls were unearthed on a terrace above the Han River in 1989 and 1990; reported in 1992. Both skulls were crushed during their discovery, although the YUNXIAN 2 specimen sustained less damage.

Using advanced techniques, Stringer, Ni, and their colleagues reconstructed the Yunxian 2 skull. These methods include CT scans that digitally separate individual bone fragments from the surrounding sediment. “The skull is elongated and has a prominent brow ridge,” Stringer notes. “Additionally, it features a slight beak-like nose, small third molars, and larger teeth.”

The Yunxian 2 skull dates back between 940,000 and 1.1 million years. Specimens of this age are often classified as Homo erectus, which appeared around 2 million years ago in Africa before dispersing to South Asia and Indonesia approximately 108,000 years ago. However, Stringer asserts that Yunxian 2 doesn’t conform to this profile; many of its features are characteristic of later specimens, including Neanderthals.

To better understand the Yunxian 2, the research team compared it with 56 other fossils of the same group. They constructed a family tree based on the morphology, grouping related fossils together. This analysis revealed three significant lineages, encompassing most fossils from the past million years.

One lineage consists of modern humans (Homo sapiens), another includes Neanderthals (Homo neanderthalensis) who lived in Europe and Asia for several hundred thousand years before disappearing around 40,000 years ago, and the third represents the Denisovans from East Asia.

Denisovans were first identified in 2010 through DNA from a bone fragment, and it took 15 years to connect this lineage with larger fossils. Stringer was involved in interpreting the Harbin skull from China, which was identified as Denisovan in June based on molecular evidence. Yunxian 2 appears to fall into the early Denisovan category, much like several other Asian fossils.

This discovery provides important links among these fossils in the Denisovan lineage, according to geneticist Aylwyn Scally at Cambridge University: “This allows us to form better hypotheses about the Denisovans’ whereabouts, lifestyle, and species characteristics.”

Recognizing that Yunxian 2 is a Denisovan reshapes our recent understanding of human evolution in two significant ways. First, it appears to alter the timeline of the emergence of these three groups. Traditional genetic narratives suggest that the common ancestor, “ancestor X,” diverged into two branches. However, the reconstruction indicates that Neanderthals separated first about 1.38 million years ago, before the divergence of modern humans and Denisovans around 1.32 million years ago.

If validated, this hypothesis posits that Denisovans were indeed more closely related to us than Neanderthals, challenging established genetic theories. Nonetheless, Scally expresses caution, noting the complexities of inter-group histories: “In reality, straightforward phylogenetic trees don’t provide a complete picture.” The research relies more on “entangled networks” than traditional models. Furthermore, Scally suggests that genetics may provide clearer insights into these relationships than morphology, especially with only partial skeletal evidence available.

The second significant change is that all three groups appear to have emerged much earlier than previously thought. Genetic evidence generally indicates that modern humans split from their Neanderthal and Denisovan relatives around 500,000-700,000 years ago. However, Yunxian 2 suggests that the Denisovan lineage was already distinct one million years ago.

Scally adds that there may not be a single definitive date for these splits; instead, they likely occurred over extended periods with intermittent separations and reunions. In this case, Stringer and his colleagues may be correct that divergence began over a million years ago, stretching across hundreds of thousands of years.

This extended timeline raises new questions. The oldest known fossils of modern humans date to around 300,000 years ago. So where are the earlier ancestors from millions of years ago? “We either lack those fossils, or they’re present but unrecognized,” Stringer comments.

We also know little about “ancestor X”—its appearance and habitat remain a mystery. “Ten years ago, I would have stated that the likely origin of most of these groups was Africa,” Stringer reflects. “It now seems plausible that their forebears lived outside Africa, potentially in regions of Western Asia. This suggests that ancient sapiens ancestors likely migrated to Africa, evolving there for a large portion of that million-year timeline.”

Stringer highlights the scarcity of known fossils from Western Asia dating back a million years, noting that even India has limited evidence. Only one human fossil from that period exists. “There are numerous regions where our fossil record is strikingly thin,” he asserts.

A significant source of information is the Yunxian site. In 2022, a third skull was uncovered that seems to be in better condition, although it has yet to be analyzed.

Neanderthals, Ancient Humans, Cave Art: France

Join New Scientist’s Kate Douglas on an enthralling journey through time as she delves into significant Neanderthal and Upper Paleolithic sites across southern France, from Bordeaux to Montpellier.

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Source: www.newscientist.com

Neanderthal Footprints from 80,000 Years Ago Discovered in Portugal

Posted on September 25, 2025 by Igor Mitreski

Archaeologists have unearthed two Neanderthal track sites across various regions in Europe. At Monte Clerigo, approximately 78,000 years ago, three distinct trackways illustrate how Neanderthals traversed the dune landscape. This behavior implies advanced route planning, as the dune environment may have been conducive for ambush hunting and stalking prey. Additionally, a solitary footprint found at the Praia do Telheiro site indicates the presence of Neanderthals in the Dune Ecosystem 82,000 years ago.

Following guidance, a reconfiguration scenario for Monte Clérigo TrackSite generated by AI tools. Image credit: JM Galán/ai.

“Footprints provide a snapshot of a specific moment, capturing events such as group movements, tracking, and interactions with particular landscapes.”

“The footprints reveal how Neanderthals utilized their environment, exploring coastal areas, forests, sand dunes, and riverbanks.

Neanderthal footprints have been identified at two distinct locations.

At Monte Clerrigo, five tracks and 26 footprints were left by both adults and children over a year old on the steep slopes of coastal sand dunes.

At Praia do Telheiro, isolated footprints were found, likely made by teenagers or adult women, alongside bird tracks typical for coastal and rocky environments.

“The quantity, size, and arrangement of footprints enable us to deduce the minimum number of individuals present, their age ranges (children, adolescents, adults), and even the specific activities (like a hunting party),” noted the researcher.

“Child and baby footprints, which seldom separate from archaeological traces, are identifiable due to their smaller size, offering insights into their social structure.”

“These footprints provide a unique perspective on daily life, serving as a snapshot from tens of thousands of years ago.”

A general view of the main truck site with the human trackway on the north cliffs of Monte Crerigo Beach, Portugal. Image credit: de Carvalho et al. , doi: 10.1038/s41598-025-06089-4.

The analyzed footprints reveal exercise strategies adapted to the landscape, suggesting planned routes, proximity to living areas, potential hunting activities, and coexistence with other species.

For instance, one track shows evidence of interactions with human footprints alongside newly formed deer tracks, supporting theories of pursuit or ambush tactics in the dune environment.

The findings confirm that Neanderthals primarily consumed deer, horses, and marine resources, exhibiting a varied dietary strategy.

“The consistent presence of these mammalian species underscores their role as reliable food sources, regardless of the varying environments occupied by Neanderthals,” stated the scientists.

“Additionally, the Neanderthal diet also included species from nearby coastal habitats, showing an extensive foraging strategy that utilized local biodiversity.”

The team’s research paper was published on July 3rd in Scientific Reports.

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Cn de Carvalho et al. 2025. The Neanderthal coast and the first Portuguese human track site. Sci Rep 15, 23785; doi:10.1038/s41598-025-06089-4

Source: www.sci.news

What Factors Contributed to Solar Power Being the World’s Most Coveted Energy Source?

Posted on September 25, 2025 by Igor Mitreski

“Today’s solar panels will inevitably reach the end of their lives and will require recycling or disposal.”

Jacques Hugo/Getty Images

By the mid-2020s, solar energy had become a major player. It emerged as the most affordable form of power generation and was also one of the fastest-growing sources of energy. The lifespan of solar panels had extended significantly, lasting around 30 to 40 years. However, eventually, these panels would need to be recycled or disposed of. By 2050, predictions indicated that there could be as much as 160 million tonnes of solar module waste. While this amount was considerably less than that produced by fossil fuel sources, it still posed a challenge.

Researchers began exploring how to create self-healing and even self-organizing solar panels.

By the mid-2030s, advancements had led to the creation of live solar panels, also known as biological solar power generation (BPV), which were deployed globally. The aesthetically pleasing, natural look of this technology made it popular, leading to the mantra of “yes, in my backyard,” and rapid adoption of living sunlight technology.

One of the first benefits was easily observed in off-grid rural areas, particularly in sub-Saharan Africa, where BPVs provided energy for mobile phones and computers without the need for batteries. As the technology progressed, older buildings were revamped into BPVs resembling green walls and roofs, while new structures incorporated living solar panels right from the design phase, allowing more people to become less dependent on traditional grid energy. This also helped boost local biodiversity and enhance overall happiness.

BPV operates like a fuel cell, where electrons move from the cathode to the anode, generating electricity. In biological contexts, electrons are produced by photosynthetic organisms and subsequently transferred to the anode.

Back in 2011, scientists became intrigued by the phenomenon of electrical leakage from cyanobacteria in sunlight. They discovered that by placing cyanobacteria on electrodes, they could harvest current to power small electronic devices.

However, the electrical output was weak due to insufficient electron leakage from the bacteria. Scientists like Chris Howe from Cambridge University worked on genetically modifying cyanobacteria to enhance electron leakage, allowing them to be connected to electronic devices.

In 2022, Howe’s team found that they could power computers solely using photosynthesis. Soon after, scientists made significant strides in their ability to scale up current harvesting and develop devices powered by biological energy sources worldwide.

“
Members of Homo Photosyntheticus pledged to limit their electricity consumption strictly to that derived from photosynthesis.
“

One immediate benefit was a significant decrease in demand for small batteries that power many devices. By 2025, these batteries accounted for 3% of the global battery market, resulting in 10,000 tonnes of waste each year.

With the improvement in BPV technology, larger devices like mobile phones and refrigerators began operating on batteries charged by living solar cells. Electric vehicles could be charged using arrays of biological solar panels installed in garages and depots, leading to a reduced need for metals like lithium and manganese.

Remarkably, the devices continued to function in low light. At night, the cells metabolized compounds created during the day, producing a comparable amount of electrons to maintain power.

The rise of living solar technology had numerous implications. As buildings adopted a green aesthetic, urban planners started integrating more nature into streets and public areas. Even densely populated cities began to exhibit a vibrant green atmosphere, teeming with trees, plants, flowers, and wildlife.

The success of BPVs inspired a movement focused on integrating the organelles of plant cells responsible for photosynthesis. This enthusiastic group, identifying as members of Homo Photosyntheticus, drew inspiration from solar-powered sea slugs and incorporated chloroplasts sourced from plant leaves into their own biology.

Sea slugs have evolved methods to sustain and manage chloroplast functionality; however, they sometimes require additional chloroplasts. They possess a leaf-like structure that maximizes surface area, yet the energy obtained through photosynthesis only meets a small fraction of their energy requirements. For humans, without the cellular infrastructure to support chloroplast function or leaf-like shapes, this method could only yield negligible energy.

Nevertheless, for self-identified members of H. Photosyntheticus, the incorporation of chloroplasts held significant symbolic meaning. They engaged in what they referred to as “greening,” committing to utilize only electricity generated directly through photosynthesis—eschewing fossil fuels altogether! Additionally, they commonly tattooed chloroplasts on their skin as a visible testament to their dedication.

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Source: www.newscientist.com

How Taylor Swift Elevates Botany to Celebrity Status

Posted on September 25, 2025 by Igor Mitreski

Feedback is New Scientist Popular Sideways covers the latest in science and technology. You can reach out to Feedback@newscientist.com to share items you believe will captivate our readers.

Quick Botany Lessons

We’re on top of our game, thanks to our assistant news editor and Swiftie Alexandra Thompson. The upcoming release titled The Anniversary of Botany is set for August. It’s named “Dance with Plants: Taylor Swift’s music video as a Catalyst for Engaging Botany Learning.”.

The study reveals that high school students exhibit a “generally low interest in plants,” leading to “plant blindness.” Teachers, frustrated by the challenge of igniting interest in botany, often find themselves repeating tired lessons. Plants are deemed an afterthought, making visits to the garden seem less inviting. It’s disheartening; interest in botany should be more pronounced.

However, as autumn leaves begin to fall, researchers have proposed a novel solution: showing a Taylor Swift music video.

This might appear off-track. Swift wouldn’t typically be seen as a conventional instructional tool. Yet, her videos prominently feature numerous plants. “Out of the 61 official music videos on Swift’s YouTube channel, 53 (87%) contain elements related to plants,” the authors note.

By incorporating videos like green cardigan into the curriculum, educators can introduce concepts such as “photosynthesis, light competition, forest waste, nutrient cycling, seasonal changes, canopy structure, plant growth habits, and morphology.”

Botany is a captivating field, filled with beauty and challenges, and students show enthusiasm for learning about plants, echoing, “You look like my next mistake.”

Botany Communicator: This is a game-changer. Embrace it! Stop denying your inner Swiftie and start incorporating her videos as teaching tools. Soon, you’ll have your students engaged.

Feedback eagerly awaits updates from researchers who find inspiration in Showgirl’s Life, as I slowly drift towards my favorite city.

Acronyms Galore

Feedback continues its mission to uncover the most imaginative scientific acronyms. Readers have highlighted two noteworthy examples. Credit where it’s due for discovering them!

Firstly, Eric Foxcroft points out that Graham Lawton’s discussion of chronic sinus infections included a “number of pages in columns” which mentioned mid-nasal results or runny noses. This was literally beneath our noses! While our feedback addressed the concept of “runny noses” way back in 2001, it seems we had forgotten, so it’s time to bring it back.

Meanwhile, Johann Gottalt Olsen highlighted a recent September Nature paper detailing unique rock formations discovered by the Mars rover, which may indicate ancient life on Mars. This was mentioned in New Scientist and notably included an acronym Olsen found that we missed.

One instrument is called Rimfax, a nod to the Norse mythical horse Hrímfaxi. The acronym cleverly stands for “radar imager for underground Mars experiments.”

But it gets better! “We also encountered Shelllock and Watson,” Olsen writes, representing “scanning habitable environments with Raman and organic matter emission” and “wide-angle terrain sensors for operation and engineering.” Olsen continued:

Feedback is curious as to why “patience” didn’t also lead to Raman rainbow colors and radiation tomography monitors. It’s essential to keep up with the feedback in New Scientist from time to time!

Creatures, Gremlins, and More

Exciting news from the Wall Street Journal reveals that OpenAI is producing its first film. Well, kind of. OpenAI is “lending tools and computational resources” to Vertigo Films, which will create films based on concepts from OpenAI’s “creative specialist” Chad Nelson.

The film is titled Cricktails, likely due to its clever spelling. A previous title, Creatures, belongs to a Science Fiction Comedy Horror film from 1986. The plot centers on “a forest creature embarking on an adventure following the destruction of its village by an outsider.”

This feature expands on the 2023 short film, Cricktails, which you can watch for free on YouTube. The short is noted as the first animated film crafted entirely using DALL-E’s generative AI, creating all visuals, characters, and backgrounds—the entirety of Crikterz’s world.

Only DALL-E could generate such unique designs as seen in Critterz. Where are the Wild Ones? Despite the desire for more animation, one YouTube commenter quipped, “I enjoy watching the whole movie with a character standing still, staring at me.”

Feedback has gathered ample content, so you can expect that the best joke is the film is narrated by “David Attenborough’s neighbor Dennis.” I’m eager to see how this unfolds as a full-length feature. Mark your calendars for its anticipated debut at Cannes next year!

Have you shared your feedback yet?

You can send your stories to feedback via email at feedback@newscientist.com. Don’t forget to include your home address. This week’s and past editions of feedback can be found on our website.

Source: www.newscientist.com

Nanoparticles Could Be the Key to Creating the Perfect Plastic

Posted on September 25, 2025 by Igor Mitreski

Enhancing PVC Pipes with Nanoparticles

Credits: Valentyn Semenov/Alamy

The addition of nanoparticles may provide a solution to a longstanding challenge in the plastic manufacturing industry. The question remains: how can we develop materials that are robust, durable, and easy to handle?

Hu-Jun Qian from Jilling University in China and his team refer to this dilemma as the plastic trilemma. Enhancing the polymer’s deformability often becomes challenging, leading to materials that are either overly viscous or difficult to manipulate.

To tackle this, the researchers incorporated polystyrene-based nanoparticles into several widely used plastics. For instance, they enhanced PEMA, a polymer commonly used in manufacturing hearing aids, artificial nails, acrylic glass for aquariums and glasses, as well as PVC used in construction and packaging.

The team subjected the modified material to various tests to determine its stretching capacity before failure. Overall, the newly developed materials exhibited improved performance across multiple assessments, sometimes showing remarkable differences. The findings indicated that PEMA became about 50% stronger with the inclusion of nanoparticles. “This lays down essential design principles for next-generation polymers featuring previously unattainable property combinations,” Qian explains.

To further investigate the advantages of incorporating nanoparticles, the researchers also performed computer simulations of the new materials. These simulations indicated that nanoparticles could shift and redistribute within the material under stress, enabling a slow and smooth deformation rather than catastrophic failure. This mobility was equally advantageous for plastics that become more fluid when molten, making them stronger, more durable, and viable.

Qian notes that this innovative approach aligns with existing industrial processes and can be scaled up effectively. “This method could transform applications needing lightweight, durable, and easily manufactured materials, including composites for automotive and aerospace, sustainable packaging, biomedical devices, and highly recyclable plastics,” he asserts.

Topic:

Source: www.newscientist.com

Are You an Introvert or an Extrovert? You Might Be Neither!

Posted on September 25, 2025 by Igor Mitreski

“By challenging the concept of fixed personality types, we can enhance our happiness.”

Simone Rotella

Avoid trying to fit yourself into modern medical paradigms. The notion that you must conform to certain traits to be accepted is flawed. Traditionally, personality has been viewed as a set of stable characteristics, leading many to feel defined by their genetic predispositions. However, these ideas are misguided.

Research indicates that our personalities are more fluid than we realize. A 2024 study revealed that three months of digital coaching significantly improved traits such as emotional stability and conscientiousness.

Personality traits support this fluidity. While many identify strictly as extroverts or introverts, Carl Jung, who coined these terms, said it’s a spectrum, with few being purely one type or the other. Your enjoyment of socializing can shift depending on circumstances—who you are on a chilly Wednesday might diverge from who you are on a sunny Saturday.

Regardless of your tendencies, maintaining social connections is crucial for well-being. Extroverted traits are linked to resilience against stress, such as elevated heart rates and blood pressure. The Harvard Study of Adult Development followed around 700 men over 80 years and found that nothing is more vital than nurturing social relationships.

Of course, many who favor intimate settings or require solitude also maintain rich social lives. During the loneliness crisis, introverted labels risk becoming shields to reduce social engagement.

Before the Covid-19 pandemic, younger individuals in the U.S. were more likely to identify as introverts compared to older generations. The pandemic accelerated this trend, pushing many toward isolation. A study showed that from 2021 to 2022, we experienced declines in openness, agreeableness, and conscientiousness compared to pre-2020 levels . This is concerning, as one in six people report feeling lonely, a condition linked to cognitive decline, cardiovascular issues, and early mortality, with younger individuals being increasingly affected.

Even if you see yourself as a die-hard introvert, embracing a social side may be more feasible than you think. Indeed, research from 2022 shows that the more rigid your introverted self-image, the more stress you feel when attempting to be outgoing. This suggests that relaxing your self-perception could foster intentional shifts in behavior.

Are you already quite extroverted? You might find value in strengthening your reflective abilities—traits commonly seen in those who prefer quieter lives. Similarly, enhancing qualities tied to happiness, like emotional regulation or becoming more open to new experiences, has proven to be cultivable.

Challenging the notion of fixed personality types can lead to increased happiness for everyone. However, embracing this can first require confronting an uncomfortable truth: the effort to change is worthwhile.

Claudia Canavan is the head of functions at New Scientist

Source: www.newscientist.com

Cheetah Discovered Preserved as a Mummy in a Cave in Saudi Arabia

Posted on September 25, 2025 by Igor Mitreski

One of the mummified cheetahs found in a cave

Ahmed Boug et al. 2025/Saudi Arabia’s National Center for Wildlife

Recent findings report the discovery of seven cheetah mummies, dating back thousands of years, in caves located in Saudi Arabia.

The cheetah (acinonyx jubatus) populations have seen drastic reductions due to habitat destruction, hunting, and the wildlife trade, leading to their disappearance from the Arabian Peninsula several decades ago. Ahmed Boug and his associates at the National Wildlife Centre in Riyadh revealed details about these seven mummified cheetahs along with 54 skeletal sites found in the Lauga Cave Network in northern Saudi Arabia during the years 2022 and 2023.

The mummies, preserved through a unique process that inhibits decomposition, date back approximately 4,000 to 100 years.

“These discoveries are incredibly significant,” states Anne Schmidt Künzel from the Cheetah Conservation Fund in Namibia. “While the mummification of Negrids isn’t wholly unexpected, this marks a groundbreaking and important find.”

“The stable temperature and low humidity in the cave environment likely aided the mummification process,” the researchers noted.

The reason for the cheetahs’ presence in the cave remains a mystery, as these animals typically do not utilize caves as dens or for storing carcasses. At the time of investigation, none of the five caves revealed any water supply.

Many of the remains were located in caves accessible solely via sinkholes, leading Schmidt Künzel to propose that the cheetahs may have fallen and become trapped. Additionally, remains of other animals including insects, wolves, striped hyenas, gazelles, and red foxes were also discovered here.

Upon examining 20 complete cheetah skulls, researchers found that six belonged to adults, while the rest were from individuals aged between 6 and 24 months. There were also nine cub skeletons located in the primary cave. The abundance of young cheetahs indicates that adult females might have used the cave for collective protection, according to Schmidt Künzel.

Camera traps set up during the investigation indicated that wolves were also using these caves. “This implies that during the cheetah’s lifespan, they may have frequented several, if not all, of these caves, enabling them to enter intentionally,” Schmidt Künzel added.

While there is only one species of cheetah, it is divided into four genetically distinct subspecies. The Southeast African cheetah (acinonyx jubatus jubatus) is the most populous, while the Northeast African cheetah (acinonyx jubatus soemmeringii) and Northwest African cheetah (acinonyx jubatus heck) exist in smaller, fragmented groups. The Asian cheetah (acinonyx jubatus venaticus), meanwhile, has very few remaining members in Iran.

Boug and his team sequenced the genomes of three sets of artifacts. Their research indicated that the mummified individuals are most closely related to the Asian subspecies, currently found in that region.

Schmidt-Künzel emphasizes that this work supports the notion that all cheetah subspecies can adapt to similar arid conditions, making it feasible to reintroduce them to the area through selective breeding of African subspecies.

Conservation and Rewilding in Central Apennines: Italy

A visit to Italy’s central Apennine region offers an enticing introduction to the concept and practice of rewilding.

Topic:

Source: www.newscientist.com

Two Climate Scientists Discuss Harnessing Emotions in the Face of the Climate Crisis

Posted on September 25, 2025 by Igor Mitreski

With emissions continuing to rise, how can we foster hope for the future?

Qilai Shen/Bloomberg via Getty Images

In the media, the climate crisis can often seem overwhelming with daily warnings about environmental degradation and extreme weather events. However, how do climate scientists cope with the relentless reality of a shifting planet? What lessons can they share regarding the intense emotions that climate change provokes? Is there a way to leverage these feelings constructively?

New Scientist Recently, I spoke with New York-based climate scientist Kate Marvel and Tim Renton, a climate scientist at the University of Exeter, UK. Both have dedicated years to modeling the interactions of our planet in response to rising greenhouse gas levels in the atmosphere. Each has authored recent works that provide insights on how to engage with and address climate emergencies.

At first glance, their books may appear quite distinct. Humanity by Marvel comprises a series of essays delving into the emotional responses elicited by climate change. In contrast, Renton’s work, A Positive Turning Point, emphasizes actionable strategies and solutions. It argues compellingly that with appropriate social, economic, and technological interventions, a significant shift toward a cleaner world is achievable.

Nonetheless, both books center around accepting our feelings about climate change, enabling us to reshape our thoughts and actions. During our discussion, Renton and Marvel emphasized why we should embrace anger, fear, pride, and hope regarding our future on this planet.

Rowan Hooper: Kate, your book discusses nine emotional perspectives on our changing planet. Would you mind starting with anger?

Kate Marvel: The chapter on anger was one of the most straightforward for me to write. I aimed to explore the historical context of climate change discovery, particularly how it intertwines with the actions of those who misrepresent it.

For example, there’s a research team striving to show that the majority of excess carbon dioxide in our atmosphere originates from fossil fuel sources, conducting innovative experiments to confirm this. They’ve deployed large ships to gather sea measurements and ultimately they’ve constructed a climate model with highly accurate predictions. Interestingly, the story traces back to an oil company, which fills me with anger. They were aware of the truths that many are just beginning to confront.

RH: Can this anger drive positive action?

KM: That’s my hope. It can be easy to fall into a negative spiral fueled solely by anger. Social media often exacerbates this outrage, but that sort of unproductive rage doesn’t lead to meaningful change.

RH: Your book also addresses emotions such as wonder, guilt, fear, sadness, surprise, pride, hope, and love. Can you share your approach to navigating these emotions?

KM: It was important for me to convey that there isn’t a singular way to feel about climate change. I often grew frustrated by narratives that insinuate you must adhere to one emotion—such as fear or anger. Living on Earth means acknowledging conflicting feelings; you care deeply about what unfolds here because your loved ones do as well.

Tim Renton examines “tipping points” within ecosystems that could impact the broader climate scenario.

University of Exeter

RH: Tim, what strategies do you use to handle the emotions tied to climate change research?

Tim Renton: My focus has been on climate tipping points that could have serious implications, some of which are already beginning to manifest. For instance, up to five billion people globally depend on tropical coral reefs that are currently threatened.

Having studied this for nearly 20 years, I’ve had to cultivate a mental framework that grapples with complex systems while seeking evidence that fosters my optimism. It’s about finding plausible pathways toward necessary changes without falling into naive hope.

RH: Is it vital to strike a balance between realism and hope?

TL: Yes, that’s what I consider conditional optimism. I remain hopeful that as people read, they might join me on this journey. History shows us that meaningful inspiration comes from a handful of committed individuals.

Madeleine Cuff: Tim, much of your work revolves around the notion of tipping points. For those unfamiliar, can you explain what that entails?

TL: A tipping point refers to a moment when minor alterations result in significant impacts on systemic states and destinies. In the context of climate change, this includes major ice sheets, ocean circulations, and key biospheric aspects that can transition between stable states. For instance, the Amazon rainforest could shift into a degraded forest or savanna.

MC: What does a positive turning point look like?

TL: Drawing from various fields over decades, I’ve seen that social changes can reach a tipping point. Social protests can appear to ignite a revolution, and technological advancements can also lead to significant shifts. There’s a point when a new technology can effectively replace an existing one.

RH: A clear example is the rise of electric vehicles and the decreasing costs of solar energy. How do these contribute to a positive turning point?

TL: We need to focus on actions that facilitate positive tipping points. We must accelerate the decarbonization process significantly. Fortunately, everyone plays a role in this transition.

At the most basic level, adopting new behaviors like reducing meat consumption or embracing technologies such as electric vehicles and solar power is crucial. Most individuals have investment funds, so it is essential to scrutinize where these funds are allocated.

The narrative surrounding positive turning points often begins with passionate social activists and innovators who envision new technologies or those eager to create change.

In her research, Kate Marvel seeks to enhance our understanding of the planet’s changing climate.

Roy Rochlin/Getty Images

MC: Kate, while we’ve touched on the negative emotions related to climate change, what about the positive feelings? How can they spur constructive actions?

KM: I began my book with a chapter on Wonder. When you take a step back to consider our planet and how much we understand it, it’s quite astonishing. This awe can forge connections and initiate conversations.

Typically, when I introduce myself as a climate scientist, people tend to disengage. But framing discussions around wonder can invite curiosity—for instance, asking, “Did you know that Earth’s water is likely older than our planet?” This fosters engagement. Utilizing a spectrum of emotions can be an effective communication strategy.

Research indicates that positively experienced emotions can be motivating. Pride in our achievements and the fulfillment of instigating change are significant. Social science data consistently points to love—love for family, friends, and community—as a powerful motivator for climate action. We all recognize the strength of such feelings.

My chapter on hope explores our complicated relationship with it. When asked if I hope for solutions to climate change, I compare it to asking if I hope to clean my bathroom; it’s not really a question of hope but a question of action we already know how to undertake.

As Tim rightly notes, many solutions are already at hand. We are making progress but need to increase the momentum to reach that critical turning point.

RH: We must confront our emotions, right? This might explain why so many struggle to engage with the issue—it can feel too immense to face.

KM: Absolutely. I ponder this daily, yet remain confounded by its complexity. The problem stems from global industrial activity, with CO₂ and other greenhouse gases diffusing through the atmosphere and impacting life globally.

It’s daunting to distill such a vast issue into something easily digestible. The significance of what this entails and the actions required can span a lifetime of work.

Many Americans express concern about climate change and wish for governmental action. However, polls often reveal that individuals believe others are less concerned. One of the most impactful actions an individual can take regarding climate change is to discuss it openly. By talking about it, we begin to realize we are not alone.

RH: What do you hope readers will take away from your book?

KM: I want readers to explore how they can resonate with their communities through shared experiences and narratives.

TL: My goal is for readers to feel empowered to act on what might seem like a daunting and insurmountable situation, instilling a sense of agency instead.

This is an edited version of the original interview conducted for New Scientist’s The World, The Universe, Us Podcasts.

What actionable steps can we take regarding climate change?
Tune in to Matt’s explanation on how to transform despair into action on October 18th at NewsCientist.com/nslmag

Topic:

Source: www.newscientist.com

Climate Change is Encouraging Tree Growth in the Amazon Rainforest

Posted on September 25, 2025 by Igor Mitreski

The average size of trees in the Amazon Rainforest is gradually increasing as carbon dioxide levels rise. This means that these larger trees play a crucial role in determining whether the forest acts as a carbon sink.

How forests adapt to changing climates remains a significant question. One theory suggests that larger trees are more vulnerable to reductions as they face challenges from climate-related phenomena, such as droughts and high winds. Understanding how forests respond to these changes is crucial for future climate models.₂ It’s essential to address atmospheric issues to mitigate global warming.

Adriane Esquivel-Muelbert from Cambridge University and her team at the Rainfor Amazon Forest Inventory Network have measured tree diameters in 188 plots averaging 12,000 square meters across the Amazon Basin. The monitoring period varied, with some plots observed for around 30 years. Meanwhile, ₂ atmospheric concentrations are reaching near record levels.

“We monitor certain areas in the forest where the average tree size has increased over time. This indicates that these trees are capable of storing more carbon than they did in the past,” researchers noted, highlighting an average diameter increase of about 3.3% every decade.

“The structural composition of the Amazon forest is continually changing throughout the basin,” says team member Rebecca Bunberry Morgan from the University of Bristol, UK. “There are more sizable trees and fewer smaller ones, indicating a shift in average size towards larger trees.”

She adds that the average diameter of trees in mature, undisturbed forest areas remains relatively constant as they replace and grow larger trees where seedlings have fallen. Researchers believe that Amazon trees are responding positively to the increasing atmospheric ₂ levels, resulting in enhanced growth and biomass accumulation. “Larger trees tend to thrive as they compete more effectively for light and water,” remarks Esquivel-Muelbert.

This implies that large trees are disproportionately vital for the carbon storage capacity of the forest, meaning their loss would have significantly adverse effects, she concludes.

“A key finding is that ₂ wood serves as a globally significant carbon sink, functioning as a fertilizer that promotes tree growth while being influenced by many factors.” Peter Etchells at Durham University, UK, states, “However, this could change as climate continues to evolve, potentially impacting the balance of growth, nutrient availability, temperature, and CO.₂?”

topic:

carbon/
Amazon rainforest

Source: www.newscientist.com

A Lifetime Spent on Swallowing, Blinking, and Yawning

Posted on September 25, 2025 by Igor Mitreski

According to a widely referenced study, during waking hours, an average person blinks about 12 times per minute, with each blink lasting approximately a third of a second. Over a span of 16 hours, that totals around 11,520 blinks, equivalent to more than an hour of blinking time.

In a typical lifespan of 80 years, this amounts to around 3.5 years spent blinking. This raises the question: what other time might we be wasting?

How much time do you spend…

Yawning?

As adults, we yawn approximately nine times a day, and even more during our younger years, with infants yawning up to 25 times a day at 12 weeks old. This adds up to at least two weeks of yawning over a lifetime.

Putting on socks?

It takes about 20 seconds to put on a pair of socks. If you wear socks daily, this activity accumulates to nearly a week of your life.

Scratching?

Even without allergies, most people scratch around 97 times a day, with each scratch taking a few seconds. This totals approximately two months of your life spent scratching. And yes, I scratched again after reading this.

In the restroom?

If you’re scrolling on your phone, you may spend quite a bit of time in the restroom – Image credit: Robin Boyden

On average, people spend between one to three years in the restroom, influenced by both dietary fiber and how much time they spend on their phones.

Traveling by car?

In your lifetime, you will spend around three years driving. This means some individuals may actually spend more time on the toilet than in a car.

Swallowing?

Did you know you swallow at least 500 times a day? Most swallowing occurs when you aren’t even eating, as saliva continuously cycles from the mouth to the stomach and back into the bloodstream.

Research shows that normal swallowing rates average 1.32 times per minute, totaling nearly 2,000 swallows a day. Over an entire lifetime, this can add up to about 1 year and 9 months spent swallowing.

This article addresses a question posed by Marlowe Fox via email: “How much time do we spend in an average lifetime?”

We invite you to submit your questions to Question @sciencefocus.com or message us on Facebook, Twitter, or Instagram. Don’t forget to include your name and location!

Explore our ultimate Fun Facts and more amazing science pages!

Read more:

Source: www.sciencefocus.com

Can We Solve One of the World’s Most Critical Climate Challenges?

Posted on September 25, 2025 by Igor Mitreski

Carbon Capture and Storage Cement Plant in Padeswood, Wales

Padeswood CCS

Commercial carbon capture systems for cement facilities are currently being rolled out, signaling a potential turn towards net-zero emissions for one of the most challenging sectors in the industry.

As reported by German company Heidelberg Materials, the inaugural carbon capture cement plant has been operational in Norway since June, with the first “carbon cement” products slated for delivery to the UK and other European countries next month.

In tandem, construction of carbon capture infrastructure at the Padeswood cement plant in North Wales is set to commence shortly, following a subsidy agreement revealed this week between the UK government and Heidelberg representatives. Several similar facilities are also in the pipeline for Sweden, Germany, and Poland.

This advancement represents a critical leap forward in the cement industry’s quest to cut emissions, a long-recognized hurdle in decarbonization efforts. “That’s significant progress,” states Paul Fennell of Imperial College London, referring to the projects in Norway and the UK.

Cement contributes to roughly 8% of global carbon emissions, according to Chatham House, a think tank. Much of this carbon dioxide is emitted by the chemical processes that create clinkers, the primary component of Portland cement, the most widely used construction material. “Regular Portland cement production inherently generates substantial CO2 due to essential chemical reactions,” Fennell explains.

Capturing CO2 generated from these processes is regarded as the only viable option for significantly decarbonizing cement production. Yet, this method is costly, with estimates ranging from 50-200 euros needed to capture, transport, and permanently store large amounts of carbon from European cement operations, as outlined in an analysis by the Bank of Netherlands here.

The Brebik plant in Heidelberg, Norway, benefits from government subsidies. Its carbon capture infrastructure accounts for 50% of the cement facility’s overall emissions. It operates by removing CO2 from the exhaust of cement plants using an ammonia-based solvent known as amines. The extracted CO2 is then released from the solvent, liquefied, and stored beneath the seabed in Norway.

The Padeswood Plant employs similar amine technology, but when the carbon capture and storage systems become operational in 2029, it is projected to eliminate around 95% of the plant’s emissions, according to the UK CEO of Heidelberg Materials, Simon Willis. This translates to approximately 800,000 tons of CO2 annually. The Padeswood facility is anticipated to sequester more CO2 than the Brevik plant, but that is largely due to the lack of additional energy supplies required to achieve the 95% reduction at Brevik.

Construction is expected to start in the coming weeks, with the UK government agreeing to subsidize the operational costs of the technology—although details of this funding agreement remain undisclosed. “The fundamental premise is that the government is providing us with funds to assist in establishing and operating carbon capture facilities,” Willis states.

According to Leon Black from the University of Leeds, UK, government financial backing is crucial for constructing the initial fleet of cement plants focused on carbon capture and storage. “Carbon capture and storage would not be feasible without governmental aid,” he asserts.

However, emerging technologies hold the promise of enhanced energy efficiency, and costs are anticipated to decrease over time. In Germany, for instance, Heidelberg is collaborating with a consortium exploring Oxifuer technology, which involves recirculating exhaust gases back to the burner, increasing the CO2 concentration in exhaust gases to around 70%, thereby making the carbon capture process more efficient.

Topics:

Source: www.newscientist.com

Ancient 185,000-Year-Old Bridge of Neutral Hydrogen Gas Links Two D-Star Galaxies

Posted on September 25, 2025 by Igor Mitreski

An international team of astronomers, as part of the Widefield Askap L-Band Legacy All-Sky Survey (Wallaby), observed DDO 137 (Wallaby J123424+062511). Their findings uncovered a vast bridge of neutral hydrogen, measuring 185,000 light-years, connecting the two galaxies, along with various arms and clouds that link to a longer gas tail (1.6 million light-years) previously identified by the Arecibo telescope.

Radio (left) and light (right) images of NGC 4532/DDO 137. Image credits: ICRAR/D. Lang, Perimeter Institute.

“This discovery marks a significant advance in our understanding of galaxy interactions,” stated Professor Lister Starley Smith from the University of Western Australia Node at the International Centre for Radio Astronomy Research (ICRAR).

“Our simulations indicate that the tidal forces between these galaxies play a crucial role in the observed gas dynamics in close vicinity to the massive Virgo clusters of galaxies.”

“As the galaxies approached the hot gas clouds surrounding the Virgo clusters—temperatures 200 times that of the sun—we experienced what is termed RAM pressure, resulting in gas being stripped away from the galaxy.”

“This phenomenon is analogous to atmospheric burn-up when a satellite reenters Earth’s upper atmosphere, albeit extended over a billion years.”

“The electron density and the velocity at which galaxies descend into these hot gas clouds sufficiently clarify why they were drawn from the galaxy toward the bridge and surrounding regions.”

This observation formed part of the Wallaby Survey, a comprehensive project aimed at mapping the sky and examining the hydrogen gas distribution across galaxies using CSIRO’s Askap Radio telescope.

“Neutral hydrogen is vital for star formation, making this discovery pivotal in understanding how galaxies interact and evolve, particularly in densely packed environments,” remarked Professor Kenji Bekki of ICRAR.

“This system exhibits striking similarities to our Milky Way and Magellanic Clouds, offering a unique opportunity for a detailed examination of such interactions,” noted Professor Stavely-Smith.

“Grasping the dynamics of these gas bridges is crucial for understanding galaxy evolution over time, the redistribution of galactic gases, and the various conditions impacting star formation within galaxies.”

“This enhances our overall understanding of the universe’s largest structures and their lifecycle.

result will be published in Monthly Notices from the Royal Astronomical Society.

____

L. Stavely-Smith et al. 2025. WallabyPilot Survey: Extensive interaction between NGC 4532 and DDO 137 and Virgo clusters. mnras 543(1): 526-539; doi: 10.1093/mnras/staf1443

Source: www.sci.news

Skip the Wait: Progress in Women’s Healthcare is Here

Posted on September 25, 2025 by Igor Mitreski

When contraceptives were first introduced in the United States, women were not cautioned about potential side effects such as heart attacks or blood clots. It wasn’t until about a decade later that significant action was taken. In her 1969 book Physician’s Case of Medication, journalist and activist Barbara Seaman compiled testimonials from women who had suffered these symptoms for years. Her advocacy led to a Senate hearing on drug safety, which resulted in the inclusion of critical information regarding lower dosage and side effects.

This was not an isolated delay in addressing women’s voices, particularly regarding medications. Despite substantial anecdotal evidence from users, large trials connecting drugs to another side effect—depression—did not emerge until the 2010s linking studies began to surface.

The same can be said for individuals suffering from chronic fatigue syndrome, where 80% of those affected are women. Despite overwhelming testimony regarding debilitating consequences, research on this condition has been limited over the years in similar contexts (long-standing community) – leading to loss of funding.

“
When thousands of individuals express similar concerns regarding their health, we must heed their voices.
“

This week’s 36-page feature article highlights recent developments. For decades, women suffering from endometriosis—a painful gynecological disorder—have also reported issues resembling autoimmune diseases. Significant correlations have only been explored in research over the last few years after thorough investigations. Just this year, a comprehensive analysis revealed a shared genetic pathway between these two conditions, paving the way for potential new therapies.

Why has progress been so slow? Insufficient funding for women’s health and the stigma surrounding women’s anatomy play significant roles. However, it’s crucial to recognize the attention given to women’s concerns and the lack of validation they often receive. When countless individuals articulate similar experiences regarding their health, we must proceed with caution. While robust data is required for specific medical recommendations and safe treatments, we could make faster strides by listening to experiential accounts, especially those of women.

Topics:

Women’s Health/
Healthcare

Source: www.newscientist.com

Sagittarius A*: Detection of Hot Gas Emitted from a Black Hole Confirmed

Posted on September 25, 2025 by Igor Mitreski

Molecular gas and X-ray emissions around Sagittarius A*, a black hole in the Milky Way.

Mark D. Golsky et al. (CC by 4.0)

Researchers have confirmed that hot winds are emanating from the supermassive black hole at the center of the Galaxy for the first time.

In contrast to many other supermassive black holes throughout the universe, Sagittarius A* (SGR A*) remains relatively subdued. Unlike its more active counterparts that emit vast jets, SGR A* does not produce such striking displays. While many supermassive black holes create winds, which are streams of hot gas that originate near the event horizon, these have never been definitively observed around SGR A*, despite theoretical predictions dating back to the 1970s.

Mark Golsky and Elena Marchikova from Northwestern University, Illinois, utilized the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile to conduct a more detailed study of the cold gas in the innermost region of the Circumnuclear Disk (CND). Their observations revealed an unexpectedly large volume of cold gas and a distinct cone that penetrates through the hot gas.

“To find such a significant amount of cold gas so close to the black hole was surprising,” says Golsky. “Conventional understanding suggested it was unlikely to be there, which is why we hadn’t previously searched for it. When I shared this image, my colleague remarked, ‘We need to investigate this further, as it’s been a puzzle for over 50 years.’”

Golsky and Marchikova’s five years of observations provided a detailed analysis of the innermost part of the CND, mapping cold gases within a vicinity of SGR A* 100 times previous measurements. By simulating and subtracting the bright variability of SGR A*, they could isolate the dim light from the cold gas.

This approach revealed a pronounced cone region nearly devoid of cold gas, and when they overlaid X-ray emissions (produced by the hot gas), a striking correlation emerged. The energy required to propel the hot gas through this cone approximates that of 25,000 suns—far too substantial to originate from nearby stars or supernovae, indicating it likely derives from SGR A* itself. “The energy necessary comes directly from the black hole, confirming the presence of winds originating from it,” Golsky states.

<p>Prior observations have identified expansive gas bubbles, known as Fermi bubbles, situated above and below the galaxy. However, the possibility of these jets reforming remains uncertain. Understanding this wind phenomenon sheds light on why SGR A* shows lower activity and enhances our comprehension of black hole evolution.</p>
<p>The implications of the reduced wind activity surrounding SGR A* are exciting. If verified, findings by <a href="https://scholar.google.com/citations?user=1VNwK9gAAAAJ&amp;hl=en">Ziri Younsi</a> from University College London could offer crucial insights into the nature of the black hole, including its rotational direction. Astronomers have postulated that SGR A* spins perpendicular to the Milky Way plane, implying a need for edge-on observation. However, the inaugural image of a black hole captured by the Event Horizon Telescope in 2022 produced inconclusive data, suggesting a possible in-person orientation.</p>
<p>“The mass of Sagittarius A* is well-defined by current observations, but its tilt angle relative to us remains largely unknown,” explains Younsi. “If these findings are robust, understanding the origins of these matter flows will be genuinely fascinating, as it will provide insights into how material spirals toward the black hole, contributing to our knowledge of galactic evolution.”</p>

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Source: www.newscientist.com

Breakthroughs in Huntington’s Disease: Essential Insights on Gene Therapy

Posted on September 25, 2025 by Igor Mitreski

The caudate nucleus is one of the brain regions that gene therapy targets

Kateryna Kon/Science Photo Library

Innovative gene therapy has emerged as the pioneering treatment that effectively slows the progression of Huntington’s disease. While the results are still in their early stages, this method holds significant promise and could even pave the way for new therapies for other neurodegenerative disorders, including Parkinson’s and Alzheimer’s diseases.

How does the treatment function?

The therapy known as AMT-130 specifically targets the abnormal brain proteins associated with Huntington’s disease progression. Those affected by the condition possess genetic mutations that result in the accumulation of huntingtin proteins, which form toxic aggregates in brain cells, leading to cell death. This eventually manifests as memory loss, mobility issues, speech impairment, and various other symptoms.

Therapies from the Dutch biopharmaceutical company Uniqure aim to halt the production of these mutant proteins. The process involves delivering genetic material to brain cells using a harmless virus. This genetic material instructs the cells to produce small RNA molecules called microRNAs that effectively block and eliminate the signals that lead to the generation of toxic proteins. It acts similarly to a molecular stop signal.

Procedures and Location of Treatment

This therapy initially focuses on two specific brain areas impacted by Huntington’s disease: the caudate nucleus and the putamen. These regions are located deep within the brain, requiring doctors to utilize real-time brain imaging to navigate thin catheters into place. The entire procedure duration ranges from 12 to 18 hours, and preliminary results suggest that a single injection may be adequate to permanently reduce levels of mutant huntingtin in the brain.

What is the efficacy of gene therapy?

Initial findings released by Uniqure indicate that gene therapy may slow the advancement of Huntington’s disease by approximately 75%.

The revelation stems from a clinical trial spearheaded by Sarah Tabrizi of University College London, where 17 Huntington patients received high-dose treatment. After three years, researchers noted the deterioration in cognitive function, motor skills, and daily activities compared to a similar group of untreated individuals. Tabrizi remarked that the decline typically observed over a year in untreated patients was instead noted within four years for those receiving treatment. BBC News. Additionally, those treated exhibited reduced levels of proteins associated with brain damage in their cerebrospinal fluid, highlighting the potential of gene therapy in slowing Huntington’s progression.

“These findings reaffirm our conviction that AMT-130 could revolutionize the treatment landscape for Huntington’s disease,” stated Walid Abi-Saad from Uniqure in a press release.

Are there any side effects?

While Uniqure has not provided comprehensive data on the side effects of the treatment, initial reports suggest that the drug appears to be safe and well-tolerated. The most frequently reported side effects included headaches and confusion, which generally resolved with steroid treatment to reduce inflammation.

When will the treatment be accessible?

In a recent press announcement, Uniqure indicated that it anticipates submitting an application to the U.S. Food and Drug Administration early next year, with the potential for product availability as soon as before 2027 with expedited approval.

“However, it is still in the preliminary phase, and further testing is necessary to assess the long-term effects of this new gene therapy and any potential side effects,” noted Zofia Miedzybrodzka from the University of Aberdeen, UK, in a statement.

Could this method assist in treating other brain disorders?

If successful, the gene therapy could facilitate the development of analogous treatments for various neurodegenerative diseases, including Parkinson’s and other forms of dementia, according to David Rubinsztein from Cambridge University. Researchers could manipulate genetic material to target the toxic proteins that cause these conditions. “This could represent a significant breakthrough,” he remarked.

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Source: www.newscientist.com

Webb Observes Sagittarius B2 in an Interstellar Molecular Cloud

Posted on September 25, 2025 by Igor Mitreski

Positioned at the core of the Milky Way galaxy, Sagittarius B2 is an immense molecular cloud of gas and dust, boasting around 3 million times the mass of the sun.

The Sagittarius B2 molecular cloud, where stars, gases, and cosmic dust shimmer in near-infrared light, as captured by Webb’s Nircam instruments. Image credits: NASA/ESA/CSA/STSCI/A. GINSBURG, University of Florida/N. Budaiyev, University of Florida/T. Yu, University of Florida/A. Pagan, STSCI.

The distance from Earth to Sagittarius B2 is roughly 27,000 light years, while it sits just 390 light years from the center of the Milky Way.

This is the largest and most active star-forming cloud within our galaxy, accounting for half of the stars birthed in the central region, even though it comprises merely 10% of the material required for star formation in that area.

“Sagittarius B2 is situated just hundreds of light years away from the supermassive black hole located at the galaxy’s center, right at the heart of star formation.”

“Webb’s infrared observations can penetrate some of the dense clouds present, uncovering young stars alongside the warm dust enveloping them.”

“Examining Webb’s findings aids in unraveling the long-standing enigma surrounding the star formation process and why Sagittarius B2 generates stars at a rate surpassing other galaxy centers.”

“Interestingly, one of the most striking elements of Webb’s imagery of Sagittarius B2 is the regions that remain dark.”

“These seemingly vacant areas of space are so tightly packed with gas and dust that even Webb cannot detect them.”

“These dense clouds are the progenitors of future stars and are too young to emit light themselves.”

Webb’s Miri (medium-infrared device) displays the Sagittarius B2 region in medium-red light, revealing bright warm dust. Image credits: NASA/ESA/CSA/STSCI/A. GINSBURG, University of Florida/N. Budaiyev, University of Florida/T. Yu, University of Florida/A. Pagan, STSCI.

With the high resolution and sensitivity of Webb’s Miri (mid-infrared device), this area has been uncovered in remarkable detail, showcasing luminous cosmic dust heated by a massive, young star.

The red area labeled Sagittarius B2 North (located to the right in these Webb images) is among the most molecularly abundant regions known, yet astronomers have never observed it with such clarity before.

The differentiation lies in the longer wavelengths produced, even within the infrared spectrum, and the contrast between images from Webb’s Miri and Nircam (near-infrared camera) makes it evident.

“The luminous gas and dust emerge dramatically in mid-red light, though everything except for the brightest stars vanishes from sight,” the astronomer noted.

“In contrast to Miri, vibrant stars take center stage in Webb’s Nircam images.”

“Further investigations into these stars will yield insights into their masses and ages, aiding astronomers in comprehending the intricacies of star formation within this dense, dynamic galactic core.”

“Has this activity persisted for millions of years? Or has an unknown process triggered it recently?”

“We anticipate that Webb will illuminate the reasons behind the disproportionate star formation centered around galaxies.”

“While there are ample gaseous components in this area, overall productivity is not on par with that of Sagittarius B2.”

“Sagittarius B2 contains only 10% of the galaxy-centric gas but is responsible for 50% of the stars.”

Source: www.sci.news

The World’s Oldest Person Had a Youthful Microbiome and an “Extraordinary Genome.”

Posted on September 24, 2025 by Igor Mitreski

Painted alongside scientist Manel Esterer, Maria Blagnas Morela contributed to research aimed at uncovering her secrets of longevity

Manel Esterler

From January 17, 2023, to August 19, 2024, Maria Blañas Morera from Spain was formally recognized as the oldest person in the world until her passing at the age of 117 years and 168 days. To investigate the secrets behind her remarkable longevity, a team of researchers explored her genetics, microbiome, and lifestyle.

When Morera was 116, the researchers gathered samples of her blood, saliva, and stool for genetic analysis. “Her genome was exceptional, enriched with variants known to extend lifespans in other species such as dogs, worms, and flies,” noted team member Manel Esterler at the Josep Carreras Leukemia Research Institute in Barcelona, Spain.

Showing no signs of dementia, Morera also possessed numerous genetic variants that helped maintain low blood lipid levels, protecting her heart and cognitive functions, according to Esteller. “Simultaneously, she lacked genetic mutations linked to conditions such as cancer, Alzheimer’s disease, or metabolic disorders.”

The researchers discovered that her lipid metabolism was one of the most efficient recorded. “Her lipid profile was remarkable, with very low cholesterol,” Esterer mentioned. “This efficiency was tied to her modest diet and genetic traits that enabled the rapid metabolism of damaged molecules.”

Esteller noted that Morela abstained from alcohol and smoking and adhered to a Mediterranean diet comprising vegetables, fruits, legumes, and olive oil, along with three servings of sugar-free yogurt daily.

Further assessments indicated that Morela maintained a robust immune system typically seen in younger individuals, alongside a gut microbiota characteristic of much younger people.

One of the most “astonishing” findings was a high concentration of Actinobacteriota bacteria in her gut, including well-known probiotics like Bifidobacteria. This abundance typically declines with age but tends to increase among centenarians and supercentenarians, offering various anti-aging benefits, such as reducing inflammation.

The researchers believe that her yogurt intake may have continually replenished her levels of Bifidobacteria. “This may suggest that dietary interventions can be linked to prolonged lifespan by influencing gut microbiota, along with preventing obesity and other health issues,” Esterer added.

Lastly, scientists examined whether there was a significant difference between Morela’s biological age and her chronological age by constructing an epigenetic clock based on her DNA methylation. This process involves adding or removing chemical tags that regulate gene expression. “Her biological age appeared 23 years younger than her actual age, contributing significantly to her longevity,” remarked Esterer.

Previous studies indicate that supercentenarians may carry genetic mutations associated with various medical conditions, such as Alzheimer’s disease and cardiovascular issues. Nevertheless, they somehow manage to overcome these obstacles and attain extraordinary lifespans. “There are limited studies on supercentenarians, and many only focus on one aspect, like microbiomes,” explained Esteller. “Our research demonstrates that overcoming such maladies is a blend of advantageous genetics and other elements, including beneficial gut microbiota, delayed biological aging indicated by a youthful epigenome, and lifestyle factors such as avoiding smoking, alcohol, and maintaining a low-fat diet.”

Richard Farragher from the University of Brighton in the UK acknowledged that the study highlights the plethora of assessments available to longevity researchers, cautioning that a case study of one individual could risk being perceived as a scientific “So-So Story.”

He explains that there are two key reasons behind the survival of extremely long-lived individuals: “First, there’s something extraordinary about them, perhaps genetically, and second, survival biases due to their fortunate circumstances,” said Farragher.

If luck plays a role, he asserts that to substantiate her longevity, Morela belonged to a family with a history of long lifespans that wasn’t documented in the study.

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Source: www.newscientist.com

The 6100-Qubit Device: A Major Leap Towards Quantum Computing Advancement

Posted on September 24, 2025 by Igor Mitreski

Quantum computers can be developed using arrays of atoms

Alamy Stock Vector

Devices boasting over 6000 qubits are setting new records and represent the initial phase of constructing the largest quantum computer ever.

At present, there isn’t a universally accepted design for creating quantum computers. However, researchers assert that these machines need to incorporate at least tens of thousands of qubits to be truly functional. The current record holder is a quantum computer utilizing 1180 qubits, with Hannah Manetsch from the California Institute of Technology and her team endeavoring to build a 6100 qubit system.

These qubits are made from neutral cesium atoms that are chilled to near absolute zero and manipulated using a laser beam, all arranged neatly on a grid. According to Manetsch, they have fine-tuned the properties of these qubits to enhance their suitability for calculations, although they have yet to carry them out.

For instance, they modify the laser’s frequency and power to help the fragile qubits maintain their quantum state, thus ensuring the grid’s stability for more precise calculations and extended runtimes of the quantum machine. The research team also assessed how efficiently the lasers could shift qubits around within the array, as noted by Ellie Bataille at the California Institute of Technology.

“This is a remarkable demonstration of the straightforward scaling potential that neutral atoms present,” he remarks. Ben Bloom from Atom Computing also employs neutral atoms in their technologies.

Mark Suffman from the University of Wisconsin-Madison emphasizes that new experiments are vital, providing proof that neutral atomic quantum computers can achieve significant sizes. However, further experimental validation is necessary before considering these setups as fully developed quantum computers.

Research teams are currently investigating optimal methods for enabling qubits to perform calculations while employing error-reduction strategies, mentions Kon Leung at the California Institute of Technology. Ultimately, they envision scaling their systems to 1 million qubits over the next decade, he states.

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Source: www.newscientist.com

These Plants Exhibit Remarkable Mathematical Abilities

Posted on September 24, 2025 by Igor Mitreski

Can plants count from 1 to 10 using their root tendrils? No. However, researchers have discovered that some plants possess the fascinating ability to detect insect intruders and monitor their own food supply, allowing them to perform basic counting and mathematics.

Take, for instance, Venus flytraps, which are renowned for snapping shut when they detect movement from an insect or other triggers. Interestingly, this is only activated if the object moves twice within a time frame of approximately 15-20 seconds.

These movements are captured by delicate “trigger” hairs on the leaves, which convert the sensory input into electrical signals that travel through the plant as waves of charged atoms (ions). The leaves then close upon receiving two triggering electrical signals.

Additionally, a group of international scientists noted in a 2016 exhibition that Venus flytraps can tally multiple counts before reacting.

They wait to receive a minimum of three electrical signals before producing the necessary enzymes to digest their prey, potentially to avoid wasting energy on false alarms.

https://c02.purpledshub.com/uploads/sites/41/2025/09/Venus-fly-trap-vid.m4v

Venus flytraps pause to sense their prey’s movement before closing and secreting digestive juices.

Even prior to this finding, scientists had proposed that the mustard plant (Arabidopsis), a common research subject, exhibits behaviors akin to division.

During daylight hours, plants harness sunlight to accumulate food stores (starches) through photosynthesis.

To sustain themselves overnight, they must establish a balanced starch consumption rate (starch divided by time) by gauging the starch stored in their leaves alongside their circadian rhythms.

Experts caution against labeling these unique counting abilities as “intelligent” or indicative of a primitive brain structure; instead, they are vital survival mechanisms that demonstrate remarkable sophistication.

This article answers a query posed by Llewi Evans from Monmouthshire.

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New Hybrid Species of Blue and Green Jays Found in Texas

Posted on September 24, 2025 by Igor Mitreski

Hybridization among these species is notable within vertebrate groups. Such occurrences typically take place between recently diverged populations, with the most recent common ancestors of the Blue (Cyanocitta cristata) and Green (Cyanocorax yncas) Jays estimated to have existed at least 7 million years ago.

A hybrid of a man with a green Jay’s mother and a blue Jay’s father. Image credit: Brian R. Stokes.

“We’ve been working hard to engage with the community,” stated Brian Stokes, a graduate student at the University of Texas at Austin.

“While historical instances of vertebrate hybrids have often been linked to human influences—like the introduction of invasive species and recent range expansions—this particular case seems to have emerged due to climate shifts prompting the overlap of both parent species.”

During the 1950s, Green Jays, a tropical bird native to Central America, were limited to areas from Mexico to southern Texas, while Blue Jays, a temperate species found in the eastern U.S., extended westward to Houston, with minimal interaction between them.

However, their ranges have since converged around San Antonio as Green Jays migrated north and Blue Jays spread westward.

Stokes, who is focused on researching Green Jays in Texas as part of his PhD, actively monitors various social media platforms where birdwatchers share photos of sightings. This was one of several methods he utilized to capture birds, take genetic blood samples, and then release them back into their natural habitats.

One day, he spotted a rough image of an unusual blue bird featuring a black mask and white chest shared by a woman in the suburbs northeast of San Antonio. Although resembling a Blue Jay, it was distinctly different. The backyard birder welcomed Stokes for an in-person sighting.

“On our first attempt to capture it, the bird was quite elusive,” Stokes recounted.

“But the second day proved to be much more fortunate.”

Using a mist net—a long rectangular mesh of black nylon thread stretched between two poles, almost invisible to birds in flight—Stokes was able to successfully catch the bird on the second day after previously capturing and releasing dozens of others.

He quickly took a blood sample from this peculiar bird, allowing him to facilitate future research.

Interestingly, the bird vanished for several years, reappearing in the woman’s garden in June 2025. The reason for its return remains a mystery.

“I can’t explain it, but it felt like pure chance,” Stokes commented.

“Had it been two houses down, it likely wouldn’t have been reported at all.”

Investigations revealed that the bird is a hybrid descendant of a male Green Jay and a female Blue Jay.

It closely resembles other hybrids produced through researcher crossbreeding of Green and Blue Jays in the 1970s.

“Hybridization is likely far more prevalent in nature than researchers recognize, as we often miss these events happening,” Stokes expressed.

“Furthermore, in many species, physical barriers may prevent interactions that could lead to mating because we’re not actively observing.”

The team’s publication appears in the journal Ecology and Evolution.

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Brian R. Stokes and Timothy H. Keat. 2025. Intergenerational hybrids between historically isolated temperate and tropical Jays after recent expansion of the scope. Ecology and Evolution 15(9): E72148; doi: 10.1002/ECE3.72148

Source: www.sci.news

Research Shows Ice Dissolves Iron Minerals More Efficiently than Liquid Water

Posted on September 24, 2025 by Igor Mitreski

Ice at 10 degrees Celsius releases iron from more abundant minerals compared to liquid water at 4 degrees Celsius, according to researchers from Umeå University, Chimiques de Rennes, and CNRS. This discovery sheds light on why many Arctic rivers are taking on a rusty orange hue as permafrost begins to thaw in warmer climates.

Schematic diagram of the iron mineral dissolution reaction of ice. Image credit: Sebaaly et al. , doi: 10.1073/pnas.2507588122.

“It may seem counterintuitive, but ice is not merely a static frozen mass,” stated Professor Jean François Boyley from Umeå University.

“Frozen states create microscopic pockets of liquid water between ice crystals.”

“These pockets function like chemical reactors, where compounds become concentrated and highly acidic.”

“This implies that even at temperatures as low as 30 degrees Celsius, they can engage with iron minerals.”

To investigate this phenomenon, Professor Boyley and his team examined goethite, a diverse array of iron oxide minerals, along with naturally occurring organic acids.

Through advanced microscopy and a series of experiments, they found that repeated freeze-thaw cycles enhance iron dissolution significantly.

When ice undergoes freezing and thawing, it releases organic compounds that were previously trapped, fostering additional chemical reactions.

Salt concentration also plays a critical role; fresh brackish waters promote iron dissolution, whereas seawater inhibits it.

The outcomes of this research are particularly relevant in acidic environments like mine drainage sites, frozen atmospheric dust, acid sulfate soils along the Baltic coast, or acidic freezing locales where iron minerals interact with organic matter.

“As global temperatures rise, the freeze-thaw cycles are becoming more frequent,” remarked Angelo Pio Severly, a doctoral candidate at Umeå University.

“Each cycle liberates iron from the soil and permafrost into the water, potentially impacting water quality and aquatic ecosystems over vast areas.”

“These findings emphasize that ice is an active participant, rather than a passive medium for storage.”

“It is crucial to recognize the growing impact of freeze and thaw processes in polar and mountainous regions on ecosystems and elemental cycling.”

The research team’s paper was published on August 26, 2025, in the Proceedings of the National Academy of Sciences.

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Angelo P. Severly et al. 2025. Ice as a kinetic and mechanical driver for iron oxide dissolution of oxalate oxide. Proceedings of the National Academy of Sciences 122 (35): E2507588122; doi: 10.1073/pnas.2507588122

Source: www.sci.news

New Cretaceous Crocodile Species Discovered in Montana

Posted on September 24, 2025 by Igor Mitreski

Paleontologists have discovered a new species of extinct crocodile-like creature from fossilized remains found in southwest Montana, USA.

Impressions of the artist Thikarisuchus Xenodentes. Image credits: Dane Johnson/Rockies Museum.

The newly identified species existed at the edge of the ancient western inland sea around 95 million years ago, during the late Cretaceous period.

It has been named Thikarisuchus Xenodentes, a type of neostian.

“Measurements indicate it was less than 60 cm (2 feet) from nose to tail tip,” stated David Barilisio, a professor at Montana State University. “If it had grown fully, it could have reached about 90 cm (3 feet) or more, but still much smaller than most members of the Neosuchia clade to which it belongs.”

“This clade includes modern crocodiles and their closest extinct relatives, most of which are semi-aquatic or marine carnivorous animals with simple cone-shaped teeth.”

In contrast, Thikarisuchus Xenodentes likely lived on land and possibly fed on plants, insects, and small animals, possessing a variety of tooth shapes.

“Its unique anatomy indicates it is part of a newly identified family of crocodile-like creatures endemic to the Cretaceous in North America.”

The fossilized remains of Thikarisuchus Xenodentes—including its limbs, vertebrae, jaw, and a skull measuring 50 mm—were discovered in the US Forest Service Black Reef Formation near Dillon, Montana, in the summer of 2021.

“We previously found dinosaurs in the Black Reef Formation, making this the second known vertebrate species discovered in this layer,” remarked Harrison Allen, a doctoral student at Stony Brook University.

Paleontologists found the bones of Thikarisuchus Xenodentes in a densely packed arrangement consistent with the fossils of other living creatures found in the dens of the Black Reef Formation and nearby Wayan Formation in Idaho.

“This supports the idea that Thikarisuchus Xenodentes was preserved in dens and that fossils from these layers are biased toward those found in such environments,” they noted.

The specimen also suggested connections to a newly established family group, wannchampsidae, and a related group identified in Eurasia, known as the Atopasauriaceae.

Both families were small, globally adaptive, and exhibited specific skull and dental characteristics shared with more distantly related groups from the Cretaceous period in Africa and South America.

“We propose that shared environmental conditions and prey availability led to convergent evolution between these two distantly related groups during the same timeframe.

“The vast majority of alligatorid diversity belongs to the past, including fully marine crocodiles, entirely terrestrial crocodiles, herbivorous, omnivorous species, and those with unique shells.”

“This discovery surprised me and motivated my interest in this specific field of paleontology.”

A paper detailing the findings is published in the Journal of Vertebrate Paleontology.

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Harrison Allen et al. 2025. The impact of newly discovered small heterodonneostians and heterodonneostians in southwestern Montana’s Black Leaf Formation on paleoecology. Journal of Vertebrate Paleontology in press; doi: 10.1080/02724634.025.2542185

Source: www.sci.news

New Research Confirms Multiple Instances of Water Activity in Jezero Crater

Posted on September 24, 2025 by Igor Mitreski

Minerals constitute the building blocks of rocks, and the specific minerals and their chemical compositions reveal significant insights into rock formation and history. On Mars, NASA’s dedicated rover, equipped with X-ray lithochemistry (PIXL) instruments, produces geochemical maps of rock surfaces. A recent study examined over 90,000 chemical analyses collected by PIXL during its first 1,100 days on Mars, revealing that the minerals in Jezero Crater interact with various types of liquids over time. result This will be published in Journal of Geophysics: Planets.

This image from NASA’s Mars reconnaissance orbiter showcases the Jezero Crater on Mars. Image credits: NASA/JPL-CALTECH/MSSS/JHU-APL.

In this research, Eleanor Moreland, a Rice University graduate student, along with her team, utilized mineral identification through stoichiometry (MIST) algorithms to analyze PIXL data.

PIXL determines the chemical composition by bombarding Martian rocks with X-rays, yielding the most comprehensive geochemical measurements ever obtained from another planet.

“The minerals identified in Jezero Crater through MIST indicate that these volcanic rocks interacted with liquid water multiple times throughout Mars’ history, suggesting the potential for habitable conditions,” Moreland stated.

Minerals form under specific environmental conditions, such as temperature, pH, and the chemical composition of fluids, making them reliable narrators of planetary history.

Within Jezero Crater, 24 mineral species illustrate the volcanic characteristics of the Martian surface and their interactions with water over time.

Water chemically alters rocks, producing salt or clay minerals, with the specific minerals formed depending on environmental variables.

The minerals discovered in the crater showcase three different types of liquid interactions, each indicating distinct possibilities for habitability.

The first mineral suite, featuring green arilite, hizingerite, and ferroaluminoceradonite, shows localized high-temperature acidic fluids present only in crater bedrock, interpreted as among the oldest rocks studied.

The water involved in this scenario is regarded as the most conducive to life, given that research on Earth suggests high temperatures and low pH can harm biological structures.

“These hot, acidic conditions present the toughest challenges to life,” commented Kirsten Siebach, a researcher at Rice University.

“However, on Earth, life can thrive in extreme environments such as the acidic waters of Yellowstone, so this doesn’t negate the possibility of habitability.”

The second mineral suite favors more hospitable conditions and indicates a medium neutral fluid present over larger areas.

Minerals like Minnesotaite and Clinoptilolite were detected on both the crater floor and fan area, forming at lower temperatures with neutral pH, while Clinoptilolite was restricted to the crater floor.

Lastly, the third category represents a cold alkaline liquid, considered highly habitable from a modern Earth perspective.

Sepiolite, a common mineral change on Earth, was found to form under moderate temperature and alkaline conditions, widely distributed across all units explored by the rover.

The presence of sepiolite in all these units indicates multiple episodes of liquid water contributing to habitable conditions in Jezero Crater.

“These minerals demonstrate that Jezero Crater has undergone a transition from harsher, hotter, acidic liquid conditions to more neutral and alkaline environments over time.

Given that Mars samples cannot be prepared or scanned as accurately as Earth samples, the team developed an uncertainty propagation model to enhance the findings.

Using a statistical approach, MIST repeatedly assessed mineral identification while considering potential errors, analogous to how meteorologists predict hurricane paths by utilizing numerous models.

“Error analysis enables us to assign confidence levels to all mineral identifications,” Moreland remarked.

“MIST assists not just with the scientific and decision-making processes of Mars 2020, but also establishes a mineralogical archive of Jezero Crater, which will be invaluable if samples are returned to Earth.”

The findings affirm that Jezero Crater, once home to an ancient lake, has experienced a complex, dynamic aqueous history.

Each new mineral discovery brings us closer to determining whether Mars has ever supported life, while also refining strategies for sample collection and return.

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Eleanor L. Moreland et al. 2025. Multiple episodes of fluid changes in Jezero Crater indicated by the identification of MIST minerals in PIXL XRF data from the first 1100 SOL of the Mars 2020 mission. Journal of Geophysics: Planets 130 (9): e2024je008797; doi: 10.1029/2024je008797

Source: www.sci.news

Discovery of a New Carnivorous Dinosaur Species in Argentina

Posted on September 24, 2025 by Igor Mitreski

A recently identified member of the Megaraptran dinosaur family has been unveiled by a collaborative effort of Argentine and US paleontologists.

Joaquinraptor Casali. Image credit: Andrew McCuffy, Carnegie Museum of Natural History.

This newly discovered dinosaur species inhabited Patagonia, Argentina, during the later stages of the Cretaceous period, approximately 70 to 67 million years ago.

Dubbed Joaquinraptor Casali, these ancient predators were the apex carnivores in the region.

It is a member of the Megaraputra, a lineage of large, clawed carnivorous theropod dinosaurs recognized from Cretaceous deposits across Asia, Australia, and especially South America.

“Megaraptrands were carnivorous theropods characterized by elongated skulls, large claws, and robust forelimbs found in Asia, Australia, and South America,” stated Dr. Lucio Ibilik, a paleontologist at Patagonico de Geología y Paleontología.

“Nevertheless, our comprehension of this group is limited due to the scarcity of complete fossils.”

A well-preserved, partially articulated skeleton of a single Joaquinraptor Casali specimen was uncovered in the Lago Corfue Huapi Formation, situated in the South Central Chubut province of central Patagonia, Argentina.

The specimen comprised numerous dinosaur skulls, anterior limbs, hind legs, ribs, and vertebrae.

Based on the microstructure of the bones, paleontologists propose that the specimen is an adult, albeit possibly not fully matured.

Drawing from other megaraptran remains, they estimate that Joaquinraptor Casali measured about 7 meters in length and weighed over 1,000 kg.

Evidence from sediment suggests this dinosaur thrived in a warm, humid floodplain environment.

“The discovery of bones within the fossilized remains of a crocodilian’s leg pressed against the lower jaw of Joaquinraptor Casali provides insights into its feeding habits, suggesting it may have been a primary predator in its habitat,” the researchers noted.

“However, additional studies are necessary to enhance our understanding of its behavior and ecological role.”

According to scientists, Joaquinraptor Casali and other factions of Megaraputra remained dominant predators in this area of South America, ultimately facing extinction alongside other non-avian dinosaurs at the end of the Cretaceous period.

“It seems that South American megaraptolids achieved larger body sizes (over 7 m in length) than their generally smaller counterparts in Australia (5-6 m),” they added.

“The Patagonian Megaraputrids may have continued to grow throughout their evolutionary history, possibly influenced by the extinction of Carcharodontosaurus during the late Cretaceous.”

“Furthermore, this could have permitted Megaraptorids to fill a niche as apex predators within their ecosystems.”

“Moreover, as suggested by the stratigraphy of the Maastrichtian (likely late Maastrichtian), Joaquinraptor Casali may have survived until the Cretaceous-Paleogene boundary, perishing alongside all other non-avian dinosaurs.”

The discovery of Joaquinraptor Casali has been detailed in a paper published in the journal Nature Communications.

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lm ibiricu et al. 2025. The latest Cretaceous Megaraptolid Cellopod dinosaurs shed light on the evolution and paleontology of megaraptrans. Nut commune 16, 8298; doi:10.1038/s41467-025-63793-5

Source: www.sci.news

Is Leucovorin an Effective Treatment for Autism? Insights from Recent Research

Posted on September 24, 2025 by Igor Mitreski

The Trump administration has included a drug known as leucovorin in efforts to alleviate certain autism symptoms. However, experts specializing in autism largely agree that additional research is needed before it can be widely used in children and adults.

Leucovorin, or Folinic Acid, is a synthetic variant of vitamin B9 requiring a prescription. It is primarily administered to cancer patients via IV alongside chemotherapy.

On Monday, the Food and Drug Administration revealed that it is moving forward with the approval of a tablet formulation for specific autistic patients.

Many researchers have raised concerns that this approval may be hasty, given that only a few small trials—mostly conducted outside the US—demonstrate its effectiveness in children with autism.

Several experts informed NBC News that FDA approval might create unrealistic expectations for families. This is particularly concerning as not all children with autism are eligible for prescriptions, and the likelihood of achieving positive results remains uncertain.

Researchers have long sought medications that can effectively mitigate autism symptoms; however, very few have satisfied the FDA’s rigorous safety and efficacy criteria. Prior to Monday, the FDA had only authorized two medications to address bothersome symptoms associated with autism, none of which targeted issues related to communication, social interactions, or repetitive behaviors.

Alycia Halladay, Chief Science Officer of the Autism Science Foundation, commented that her organization supports research grounded in evidence; leucovorin is not suggested as a treatment and more research is essential.

“Leucovorin doesn’t meet the standards set for FDA approvals, yet this administration is proceeding regardless. Therefore, I wouldn’t label this a victory,” Halladay remarked.

She further noted that the way the drug was presented at Monday’s White House Briefing as a major breakthrough for families with autism doesn’t align with the nuances of FDA approval.

The FDA stated in a news release that the drug is being approved for patients suffering from cerebral folate deficiency, a rare neurological disorder marked by low levels of vitamin B9 (folate) in the brain. Some researchers speculate that this condition might be linked to autism, but it is not present in all autistic individuals.

(Halladay estimates that around 10-30% of autistic patients may have this condition.)

Though leucovorin can potentially aid in reaching the brain, theoretically improving verbal communication and alleviating autism symptoms like irritability and repetitive actions, there is no evidence to suggest it entirely eradicates these symptoms.

“We still hope that leucovorin might serve as a helpful option for a subset of patients,” noted Dr. Rachel Forlomer, an assistant professor of pediatrics at Northwestern University’s Feinberg School of Medicine. “However, I can’t say we’re at a stage where we can confidently claim we can assist every individual with autism.”

President Donald Trump expressed at a briefing that the approval “offers hope for many parents of children with autism that life improvement is possible.” Mehmet Oz, leader of the Centers for Medicare and Medicaid Services, described the decision as “life-saving.” FDA commissioner Marty McCurry remarked, “I believe hundreds of thousands of children will benefit.”

However, in a follow-up news release, the Department of Health and Human Services clarified that leucovorin is “not a cure” for autism and “may only result in improvements in speech-related deficits for a subset of children.”

David Mandel, a professor of psychiatry at the University of Pennsylvania, remarked that the folate hypothesis is based on relatively weak scientific evidence.

“We lack robust large-scale studies demonstrating that a significant number of individuals with autism suffer from folic acid deficiency,” he noted.

While leucovorin has shown minimal side effects in cancer patients, higher doses can lead to gastrointestinal issues and increase the risk of seizures in individuals on anti-seizure medications. It is commonly part of treatment for colorectal cancer and other gastrointestinal malignancies, often enhancing the efficacy of the chemotherapy drug 5-fluorouracil. In rare cases, it is administered to reduce side effects from another chemotherapeutic agent, high-dose methotrexate.

Halladay mentioned observing side effects during the leucovorin autism trial but noted that the specific safety of the drug was not evaluated. She indicated that dosages varied across studies, making it difficult to determine if leucovorin was responsible for any symptom improvement, as some trial participants also received behavioral therapy.

According to Mandel, the largest study involving these trials included only 80 participants.

“For FDA approval, one would ideally want hundreds of children involved in these trials,” he explained.

Leucovorin must overcome one final obstacle before it becomes available to select autistic patients. The FDA stated it is collaborating with GSK, the manufacturer of the brand-name version of leucovorin, to update the drug’s labeling. GSK confirmed that a new application will be submitted to include autism indications.

Oz stated on Monday that leucovorin prescriptions will be covered by Medicaid, with private insurance companies likely to follow suit.

However, Mandel expressed concern that anticipated cuts to Medicaid may compel many families to cover costs out of pocket, potentially driving them to purchase folinic acid supplements online without prescriptions. Such supplements may not have gone through quality control, and dosage information could be unclear.

Dr. William Dahoot, chief science officer at the American Cancer Society, expressed concern that the growing interest in leucovorin for autism might adversely impact its availability for cancer patients.

“We have faced shortages of this drug before, and an increase in demand could lead to future shortages,” he noted in an email.

Source: www.nbcnews.com

Clues to Exotic Dark Matter Particles Could Be Found in LHC Data

Posted on September 24, 2025 by Igor Mitreski

ATLAS Detector of the Large Hadron Collider

Xenotar/Getty Images

SEI 266779422 — ATLAS Detector of the Large Hadron Collider

Xenotar/Getty Images

The theoretical particles known as axions have attracted the attention of physicists for decades, as they are significant candidates for identifying dark matter. Recent research suggests that we might not need new experiments to discover these exotic particles; evidence could already be embedded in existing data from previous particle collider experiments.

Particle colliders like the Large Hadron Collider (LHC), located at CERN near Geneva, Switzerland, discover new particles by colliding protons and ions, analyzing the resulting debris. Now, Gustabo Gilda Silveyra and his team at CERN are exploring another avenue: can we detect when a proton or ion emits a new particle during acceleration? Their findings indicate that this may indeed be possible.

The axion was theorized in the 1970s as part of a pivotal solution to a significant problem in physics. Its importance surpasses even that of antimatter. Although the ongoing search for experimental evidence of axions has not yet yielded results, it raises the possibility that other particles resembling axions might exist. Due to their incredibly low mass, they bear a close resemblance to substantial quantities of light or photons, interacting together with the LHC.

This interaction primarily occurs when protons or ions are accelerated to astonishing energy levels. As these particles approach each other, they begin to emit radiation in the form of photons, which may then collide with one another. Researchers have modeled this scenario, replacing photons with axion-like particles. Their results indicate that accelerated protons exhibit a higher likelihood of generating axion-like particles compared to accelerated ions, with both producing photons simultaneously. Consequently, the team has identified collisions between protons and lead ions as optimal for uncovering signals related to axions influencing photons. The specific proton-lead ion collisions were executed at the LHC in 2016, and the researchers propose that data from these experiments might have been previously overlooked but could contain vital hints about new axion-like particles.

Lucien Haaland Lang from University College London has remarked that this approach presents an intriguing new pathway to uncover potential undiscovered particles, though he cautions about the challenges involved. “Such collision events are rare, and we must be cautious to differentiate our findings from background processes that may inadvertently mimic the signals we seek,” he notes.

Access to older LHC data poses challenges due to updates in software, according to Da Silveira. However, he expresses optimism regarding future experiments at the LHC. “We will be able to adjust the detector to capture this specific signal,” he states.

Identifying a particle signal analogous to an axion does not equate to discovering an actual axion, thus leaving one of the major unresolved questions in physics unanswered. Nonetheless, it expands our understanding of particle physics, prompting inquiries into how new particles might interact with known counterparts and whether they might help explain the enigmatic dark matter that permeates the universe.

Journal Reference: Physical Review Letter, In print

Topics:

Large Hadron Collider/
Particle Physics

Source: www.newscientist.com

What We Know and Don’t Know About the Connection Between Painkillers and Autism

Posted on September 24, 2025 by Igor Mitreski

The US government raised concerns about painkillers used during pregnancy

Solstock/Getty Images

On Monday, the US government introduced two initiatives concerning autism. One update involves labeling for paracetamol, commonly known as acetaminophen, emphasizing that its use during pregnancy could elevate the risks of autism and ADHD in children. The government also approved leucovorin for certain children diagnosed with autism spectrum disorder (ASD). However, these actions are not strongly supported by scientific evidence and may have negligible effects on autism prevalence in the United States.

This announcement followed Robert F. Kennedy Jr.’s pledge, made in April, to uncover the causes of autism by the close of September. President Donald Trump later described this initiative at a press conference as “a historic step towards battling the autism crisis.”

This portrayal indicates a possible misunderstanding or distortion of existing knowledge about autism. There is no crisis as such. Autism rates began to surge rapidly since the 1980s, significantly influenced by increased awareness and recognition of its symptoms leading to more frequent diagnoses.

Evidence supporting the idea that paracetamol causes autism is limited. While several studies indicate a correlation between paracetamol use during pregnancy and an elevated risk of autism in children, causation should not be assumed. A recent investigation involving 46 studies found that 27 of them reported a significant link between paracetamol use in pregnancy and heightened risk for neurodevelopmental issues, including autism. Nevertheless, correlation does not imply causation; other underlying factors may also play a role.

Contrasting findings are evident in other studies. For instance, a 2024 evaluation analyzing around 2.5 million children determined that while those exposed to paracetamol during pregnancy faced a marginally higher autism risk, this effect diminished when comparing children exposed to painkillers with their siblings. “It wasn’t the paracetamol use, but rather family history that played a crucial role,” said Dimitrios Siasacos from University College London. “Although studies indicate a slight increase in autism outcomes related to paracetamol use during pregnancy, this tends to vanish when analyzing the more significant factors involved.”

During a press briefing, Trump advised that pregnant women should avoid taking paracetamol for pain or fever. However, the US Food and Drug Administration (FDA) issued a press release stating that no causal link between paracetamol and autism has been established. Additionally, in a notification to healthcare providers, the FDA confirmed that paracetamol remains the safest and most accessible pain relief option during pregnancy. “[It] is the only over-the-counter medication that is approved for use to treat fever during pregnancy, as a high fever can pose risks to the developing fetus,” emphasizing potential fetal brain or spinal cord defects.

The FDA also announced its approval of leucovorin for individuals with cerebral folate deficiency, a condition that affects the brain’s capability to absorb vitamin B9. Studies suggest that around 40% of people with autism may be affected by this deficiency, leading to similar symptoms, including difficulties with communication and sensory processing.

Leucovorin, a form of vitamin B9, is already utilized to address deficiencies of this vitamin and to mitigate side effects from certain cancer treatments. Preliminary evidence implies that it might aid in alleviating severe autism symptoms. For instance, a 2016 study involving 25 autistic children treated with leucovorin demonstrated that 65% showed meaningful improvements in verbal communication skills compared to only 24% in the placebo group after 12 weeks.

However, existing studies on leucovorin and autism have been relatively small, often yielding only modest positive results. Larger clinical trials are in progress, with results expected next year. “Currently available evidence is tentative and not yet deemed comprehensive,” stated Monique Botha at Durham University. “While these medications might offer benefits in specific areas, there are no treatments that effectively address or eliminate autism as a whole.”

Following the announcement, the U.S. Department of Health and Human Services reiterated that “while promising, it’s crucial to understand that leucovorin is not a cure for ASD but may help to enhance speech-related skills in a limited group of children with the condition.”

With Trump’s backing, Kennedy is positioning the “autism epidemic” as a cornerstone of U.S. public health policy. They are both framing these policy developments as substantial milestones achieved in a brief timeframe. However, scientific evidence suggests that avoiding paracetamol during pregnancy or utilizing leucovorin is unlikely to have the significant impact on autism that Trump and Kennedy claim. Instead, the most probable outcome of these initiatives pertains to how and when to manage pain and fever safely during pregnancy.

topic:

Source: www.newscientist.com