Discover Coffee’s Mood-Enhancing Benefits Beyond Caffeine

Coffee and Mood

Coffee’s Influence on Mood and Microbiome

Artem Varnitsyn / Alamy

Both caffeinated and decaffeinated coffee have been shown to enhance mood and cognitive performance, potentially through their beneficial effects on the gut microbiome.

Research indicates that coffee significantly impacts digestion, cognition, and mood by interacting with gut bacteria. While much of the existing literature emphasizes caffeine’s role, coffee is also abundant in polyphenols—plant compounds that gut bacteria transform into bioactive molecules associated with anti-inflammatory properties and cognitive enhancement.

To better understand these interactions, John Cryan and his team at University College Cork recruited 62 healthy volunteers. Half were regular coffee consumers, while the others abstained from coffee. Participants underwent a 14-day caffeine withdrawal followed by a 21-day reintroduction period, during which they consumed either caffeinated or decaffeinated coffee.

Researchers collected blood, saliva, urine, and stool samples to analyze physiological reactions to coffee compounds, alongside assessments of mood, cognition, stress, sleep, and behavior.

Results showed that caffeinated coffee drinkers reported lower anxiety levels and enhanced alertness, whereas decaf drinkers exhibited improved memory performance and sleep quality. Both coffee types correlated with decreased stress and depression levels.

Upon removing and reintroducing coffee, participants’ microbiomes underwent rapid changes, with both regular and decaf coffee leading to higher levels of beneficial gut bacteria. “We were taken aback by the system’s dynamic nature,” stated Cryan.

This study indicates that the cognitive benefits of coffee may be driven more by polyphenols than by caffeine, as improvements in cognitive scores were linked to specific polyphenol-derived metabolites found in urine samples.

According to team member Daniel Del Rio from the University of Parma, a critical next step is understanding how different coffee types impact the microbiome. “Not all coffee is created equal; even roasting levels significantly affect its chemical makeup.”

Nicola Segata, a researcher at Italy’s University of Trento, emphasizes the importance of this study but also warns against overstating the findings. “The study’s modest sample size may restrict the generalizability of its results,” he notes.

“This research offers valuable insights into how coffee consumption influences microbiome composition, suggesting that the human gut may adapt quickly to various diets and environments without genetic alteration,” adds Telmo Pievani from the University of Padua.

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Source: www.newscientist.com

As Africa Splits: Rapid Magma Rise Unveiled – Sciworthy Insights

The African continent is geologically significant, divided into tectonic plates at the heart of Ethiopia. Recent advancements in geophysics have shed light on the mechanisms of tectonic plate separation. Research has revealed that the continents started to fragment due to cracks and misalignments in the crust and upper mantle, known as the lithosphere. As magma ascends through these fissures, it reaches the Earth’s surface, leading to volcanic formations. While scientists understand the association between volcanoes and continental rifts, the rate of their formation remains unclear, complicating volcanic hazard assessments in rift zones.

A research team, led by Kevin Wong, aimed to resolve this question by analyzing the minerals formed during magma cooling, specifically olivine. They examined 72 olivine crystals, each measuring between 1 and 4 millimeters (0.04 to 0.16 inches), sourced from the Bok and Jiwei volcanoes located within Africa’s Main Ethiopian Rift (MER). Their findings indicate that the lithosphere in this area maintains a thickness of approximately 35-40 kilometers (21-25 miles). This substantial lithosphere hints at the MER’s position as an intermediate stage in continental separation, offering a unique perspective on the transition from tectonic deformation to magmatic fractures.

Wong and his team chose to analyze olivine due to its role as one of the earliest minerals to crystallize from magma, continuing to grow as the magma cools and rises. As the magma ascends, its composition alters, creating distinct chemical “zones” within the growing crystals, akin to the rings of a tree. Fluctuations in temperature and magma composition cause various elements, like magnesium and iron, to diffuse at differing rates, allowing scientists to model these chemical zones and their boundaries to determine the speed of magma ascent from the upper mantle to the surface.

The researchers utilized high-magnification imaging and chemical analysis through an electronic microprobe to study olivine crystals from the MER volcanic field. They meticulously mapped 10 to 15 points within each crystal, spaced approximately 5 to 15 microns (about 10% the thickness of a human hair) across a cross-section that spanned the growth zone from the inner core to the outer edge.

Their analysis identified two distinct categories of olivine crystals. The first displayed a normal zone crystal characterized by a magnesium-rich inner core, while the second was identified as a reverse zone crystal with a magnesium-poor core. The research indicated that freshly formed magma deep within the Earth is richer in magnesium than iron. The boundary between the magnesium-rich and magnesium-poor zones can become indistinct due to diffusion. This gradual smoothing of crystal boundaries over time operates at a known rate, allowing researchers to extract valuable information regarding the rate of magma ascent and its interaction with adjacent rock.

Employing a numerical model, the team estimated the diffusion rates of magnesium and iron across these chemical boundaries, factoring in varying temperatures and magma compositions. By comparing thousands of simulated diffusion profiles with actual olivine diffusion profiles, the researchers estimated that the crystals ascended from deep within the Earth and mixed with the surrounding magma over an average of 40 days during the Bok eruption and 17 days during the Jiwei eruption. They further cross-validated these estimates using a growth-diffusion model, which better mirrors the natural behavior of crystals, yielding an approximate rise time of 27 days while accurately replicating the observed crystal band pattern.

Based on their findings, the researchers concluded that intermediate-stage rifting events occur at surprisingly short time scales. On average, magma can ascend up to 40 kilometers (25 miles) from deep within the Earth to the surface in about one month. This timeline aligns more closely with human time frames than geological ones. They suggested that such rapid ascent is likely due to a sophisticated magmatic plumbing system embedded within the lithosphere, which develops before substantial thinning occurs. However, the researchers cautioned that these findings imply that the ascension timescale could vary significantly, impacting disaster mitigation and prediction efforts.


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Source: sciworthy.com

Top New Popular Science Book Releases for May 2026: Must-Reads & Highlights

Source: www.newscientist.com

Exploring Eurovision: Scientists Analyze 1,763 Songs for Nostalgia and Emotional Impact

Feedback from New Scientist

Welcome to New Scientist, your trusted source for the latest in science and technology news. If you have feedback or items that may interest our readers, please reach out via email at feedback@newscientist.com.

Eurovision 2026: Are You Ready?

The highly anticipated 2026 Eurovision Song Contest is fast approaching, with the grand finale set for Saturday, May 16th. Whether you’re a fan or not, get ready for an entertaining spectacle!

Coinciding with this buzz, a comprehensive study published in Royal Society Open Science delves into the rich history of Eurovision. Researchers analyzed data from every contest between 1956 and 2024, totaling 1,763 songs. They categorized entries by various musical attributes, including language, themes, lyrics, and genre, utilizing AI tools for analysis. It’s hard to ignore the auditory implications of such a massive dataset!

The analysis unearthed intriguing insights, revealing that past research identified 12 major themes prevalent in popular songs, such as desire, heartbreak, and pain. However, only 11 themes are reflected in the Eurovision entries, as researchers excluded the theme ‘Jaded’ for being underrepresented.

The data also shows a significant decline in songs expressing nostalgia, while themes of pain, rebellion, despair, confusion, and escapism have become more prominent over the years. The 1970s marked a notable rise in songs depicting disorder and escapism, reflecting the societal crises of that era. However, the increase in ‘pain’ themes began not until the 2000s, post-Great Recession, suggesting a correlation.

Interestingly, songs have shifted from acoustic to electronic styles, with a growing prevalence of English lyrics over national languages. This trend indicates that Eurovision participants are deliberately aligning their entries with the winning formula established by past champions.

There are notable exceptions, as countries like France, Italy, Portugal, and Spain continue to champion their native languages, suggesting a deeper cultural rationale beyond mere competition.

The researchers conclude by emphasizing the notion of “organizational learning” among Eurovision participants, reflecting an ongoing adaptation to the competition landscape. Feedback sees this as a testament to the enduring allure of the contest.

Moss Appeal: A Niche Attraction

In a previous article, we discussed a park filled with intricate foraminiferal carvings and pondered the existence of niche science-themed attractions. This inspired reader John Wilson to share information about the Serenity Moss Garden in North Carolina.

Spanning about 900 square meters, this moss-covered mountainside offers visitors a unique experience, though John humorously described it as “more like a climate-controlled box” rather than a traditional museum.

Feedback realizes that our quest for niche appeal may have been too limited. Are there any other unique attractions, such as a museum dedicated to Plecopteran (stoneflies) or specialized exhibits featuring beach pebbles?

New Math? A Logical Dilemma

Regardless of our professional backgrounds, math can sometimes overwhelm us. Navigating concepts like converting square kilometers to square meters can be perplexing.

Recently, U.S. Secretary of Health Robert F. Kennedy Jr. faced scrutiny for claiming a 600% decrease in drug prices, an assertion deemed mathematically implausible by rival politicians.

Feedback believes RFK Jr. has been misled. A 100% drop suggests prices have plummeted to zero, a mathematical limit. In theory, this could even lead to negative pricing, but the complexities of rate changes should ideally be left to mathematicians.

In a curious twist, RFK Jr. stated, “If that drug goes from $100 to $600, that’s a 600% price increase.” This form of reasoning feels like a new, perplexing brand of logic—while the premises hold, the conclusion is unmistakably flawed.

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Breakthrough: First-Ever Measurement of Pressure from Individual Particles

The ultra-sensitive pressure sensor features a 100-nanometer silica sphere held in place by laser light.

Thomas Penny/Yale Wright Institute

A groundbreaking device utilizing tiny beads stabilized by laser technology has made it possible to measure the pressure created by individual particles for the first time. This remarkable innovation holds potential for uncovering elusive particles that may constitute dark matter.

Pressure arises when particles collide with an object, applying force across its surface area. Traditionally, this phenomenon is viewed in averages, but during low-pressure environments, such as near-perfect vacuums, it becomes essential to monitor each particle’s contribution to accurately measure pressure.

Tseng Yuhan from Yale University and colleagues have engineered the first device capable of performing these precise measurements. At its core is a small silica sphere, measuring half the size of certain viruses, suspended in place by a laser beam through electromagnetic interactions. Each time a particle impacts the sphere, the reflected light can be captured and analyzed by researchers.

To evaluate this innovative system, the team placed the device in an ultra-high vacuum and gradually introduced three different gaseous particles. They meticulously measured the device’s movement upon particle collision, calculating pressure from these data points and comparing results to theoretical predictions, achieving impressive consistency. This indicates that the device is functioning as intended.

“Every detail is crucial for accurate measurements,” Tseng states. “We executed each step with precision, leading to beautiful results.”

Yu-Han Tseng, Thomas Penny, and Cecily Lowe work on pressure-sensing devices.

Research conducted by Clark Hardy, and his team at Yale University, suggests this innovative device could redefine ultra-high vacuum standards, a realm where traditional pressure sensors often fail. “Counting individual particle collisions is sufficient to estimate pressure in these extremely high vacuum environments,” he explains.

“Observing individual molecular collisions in real-time is a rarity,” comments Joseph Kelly from King’s College London. “Typically, their effects are only perceived in averages, similar to how fast-moving objects appear blurred in long-exposure photography.”

Animesh Dutta, a researcher at the University of Warwick, indicates that similar instrument designs could significantly advance astronomical studies, particularly in understanding the dynamics of low-pressure interstellar spaces by detecting gaseous particles that other sensors might overlook.

The research team is also focused on using this device to detect hypothetical sterile neutrinos, a potential key to resolving a longstanding anomaly in particle physics experiments, elucidating the existence of incredibly small mass particles, and possibly identifying the fundamental composition of dark matter.

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Source: www.newscientist.com

Must-Read This Week: ‘The 21st Century Brain’ by Hannah Critchlow

Cuba. Santa Clara. 2017.

Technology is profoundly changing our culture. Our brains are equipped to navigate these shifts, as noted by Hannah Critchlow.

Martin Parr/Magnum Photo

21st Century Brain
By Hannah Critchlow
Transworld

Cambridge neuroscientist Hannah Critchlow starts her significant book with a striking assertion: “Our species is currently undergoing a major transition.” She elaborates that our increasingly digital and interconnected lives are reshaping how we evolve. As artificial intelligence becomes prevalent, we face an unprecedented environment, unlike any in our over 300,000-year existence.

Critchlow’s engaging opening evokes discussions found in works like Susan Greenfield’s Mind Change, which posits negative impacts of digital technology on our brains. While Greenfield faced critiques for being overly alarmist, Critchlow garners praise for her optimism and scientific backing. Her initial premise is supported by peer-reviewed literature, including a 2021 review in Proceedings of the Royal Society B, asserting that culture, rather than genetics, drives human evolution.


Humans have lived in environments unlike any other during their more than 300,000 years of existence.

Critchlow’s optimism stems from the remarkable flexibility of the human brain. She convincingly argues that we already possess the psychological attributes essential for thriving amidst such transitions, both personally and socially. We are evolving into more socially integrated entities within highly connected environments shaped by technology.

Critchlow outlines six key chapters, emphasizing the interconnectedness of the traits she explores. She presents a range of exercises aimed at fostering these abilities.

What are these ‘spiritual superpowers’? The first is emotional intelligence, crucial for successful teamwork in our increasingly interconnected world. Her insights are firmly rooted in the latest neuroscience and cognitive psychology research, citing over 100 scientists and offering an impressive bibliography.

Other superpowers include imagination, creativity, and adaptability to uncertainty while maintaining clear, accurate thought processes. The ultimate goal is to foster wisdom, expertise, and intuition.

I found the later chapters particularly engaging. Critchlow discusses the latest science regarding diet, the gut-brain connection, and organelles like mitochondria, revealing their intricate relationships with our cognitive functions.

Importantly, the book emphasizes that future success relies not on mastering technology but on intelligently navigating the environments it creates.

Her actionable tips for enhancing mental skills are both practical and insightful, often underlining the importance of mobility at all levels—physical and social—as well as leveraging diverse ideas and experiences. These insights have become a personal touchstone for how Critchlow lives her life.

In the final chapter, she reflects on humanity’s relationship with AI, posing a critical, albeit complex, question. While her arguments here may lack persuasiveness, possibly due to external pressures, they prompt necessary considerations.

If I were her editor, I might have encouraged deeper speculation on the implications of this transformation and what our societies could resemble in the future—in 50 or 100 years.


Recent discoveries in neuroscience and cognitive science prove we don’t need to fear transition.

I would also suggest exploring how to cultivate these mental skills at an organizational level, not just individually.

These critiques, however, do not detract from the book’s primary argument: that neuroscience and cognitive science show us we need not fear transitions. Our brains are equipped with skills to navigate changes, yet refining them requires effort.

We can take solace knowing that our ancestors faced significant changes throughout history, such as agriculture, civilization, and written language, emerging from those challenges not only alive but often in improved circumstances.

With Critchlow’s insightful and cautious manifesto as our guide, I remain optimistic about our ability to navigate this current transition.

Three More Insightful Books About Our Amazing Brains

Invincible Brain: A Clinically Proven Plan to Protect Your Brain from Aging and Stay Sharp for Life
Written by Majid Fotuhi

Majid Fotuhi, a neurologist at Johns Hopkins University, presents a 12-week program of lifestyle changes designed to enhance brain health and cognitive function at any age.

The Brain: User Guide
By New Scientist

This visually engaging guide explores maximizing the potential of your brain, based on an original article published in New Scientist, refined by my former colleague Alison George.

Inner Senses: How the New Science of Interoception Can Transform Your Health
Written by Caroline Williams

This fascinating book on interoception, a concept linking our internal senses to emotional intelligence, will resonate with what Critchlow discusses. It’s a delightful read for improving your awareness and health.

Graham Lawton is a former staff writer for New Scientist.

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Source: www.newscientist.com

Can Fart Walking Help Manage Diabetes Effectively?

There’s an ancient Chinese proverb that goes, “If you walk 100 steps after eating, you will live to be 99 years old.” This time-tested saying in traditional medicine emphasizes that gentle exercise right after meals can enhance digestion and contribute to long-term health.

Interestingly, modern research and social media are now echoing this age-old wisdom.

In 2024, Canadian cookbook author Maylin Smith gained popularity on TikTok with a video highlighting the benefits of a post-meal “fart walk” for reducing bloating and eliminating gas.

The concept is simple: movement stimulates your stomach, intestines, and surrounding muscles, thereby activating your digestive system.













After eating, food moves more swiftly through your gastrointestinal tract, leading to regular bowel movements while minimizing gas buildup.

If this sounds unbelievable, reconsider.

The Evidence Behind the Fart Walk

A growing body of research indicates that engaging in a walk or light exercise right after meals offers numerous benefits beyond simply alleviating gas.

A 2020 study by Japanese researchers found that individuals with irritable bowel syndrome experienced a symptom reduction of up to 50% by increasing their daily steps from 4,000 to 9,500 source.

Additional studies show that postprandial exercise positively impacts cardiometabolic health markers.

In 2022, scientists discovered that even a brief 2-5 minute walk after a meal could lower blood sugar levels significantly. Intermittent light exercise throughout the day can decrease blood sugar levels by 17% compared to prolonged sitting source.

Researchers are still exploring the mechanisms behind this phenomenon. According to Dr. Aidan Buffy, a postdoctoral researcher at the University of Limerick, “It’s a bit of a black box. Our hypothesis is that walking or exercising encourages our contracting muscles to take up glucose rather than producing more insulin for transport.”

This theory is supported by studies involving diabetic and prediabetic patients. A 2023 meta-analysis found that diabetics who walked within 30 minutes after meals showed improved insulin control.

“For those with diabetes, the insulin pathway may not function properly, which is a leading cause of the condition. Many require insulin injections,” Buffy stated.

“Sedentary individuals might not activate their insulin pathways effectively, benefiting significantly from post-meal walks. Researchers are now exploring exercise and nutrition as potential treatments for reversing diabetes.”

Taking Purp for a short walk after a meal can do wonders for your health – Image courtesy of Robin Boyden

Besides digestive benefits, several studies indicate that a walk after meals may aid in weight management and improve mood and energy levels due to enhanced blood sugar regulation.

Moreover, extensive evidence suggests that regular walking correlates with improved mental health and a reduced risk of cancer.

In 2025, Sydney researchers discovered that for every additional 1,000 steps (from 2,300 to 10,000 steps per day), the risk of heart failure decreased by 17%.

How Intense Should Your Fart Walk Be?

Buffy emphasizes the benefits of moderate exercise. “Light exercise is beneficial and motivating. Think of it like driving: start gently and gradually increase intensity.”

“Recent literature demonstrates a clear link between vigorous physical activity and reduced mortality rates. It’s not always about 60 minutes of high-intensity exercise; even short bouts of high intensity can be effective.”

In essence, activities like stair climbing can provide greater benefits compared to leisurely walks.

Buffy also recommends incorporating yoga and bodyweight exercises, such as squats and push-ups, into your post-dinner routine for optimal results within 60 minutes of finishing your meal.

So stand up and start moving, but make sure you’re not downwind of others while following this advice!

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Source: www.sciencefocus.com

Heartwarming Video: Sumatran Orangutan Crosses Road on Bridge for the First Time – A Big Milestone!

An orangutan was captured on video crossing a road using a rope bridge in the Pak Pak Barat district of North Sumatra, Indonesia, much to the joy of conservationists.

A young male Sumatran orangutan utilized this bridge to explore a new area of the rainforest, instilling hope among conservationists for the future of orangutans in the region.

“These canopy bridges demonstrate that human development and wildlife conservation can coexist,” said Helen Buckland, Chief Executive of the Sumatran Orangutan Society (SOS). “Often, the simplest solutions prove to be the most effective.”

https://c02.purpledshub.com/uploads/sites/41/2026/05/bridge-crossing-video-.mp4

In 2024, SOS, in collaboration with the Tanggu Hutan Haturistiwa Foundation (TaHuKah), initiated construction on a canopy bridge following the widening of the Lagan-Pagindar road.

This road connects rural communities with essential services like hospitals and schools.

However, the 2023 road expansion created a gap in the tree canopy that orangutans and other wildlife struggled to cross.

For the region’s population of approximately 350 orangutans, this led to a division into two groups: one in the Silangas Wildlife Reserve and the other in the Siclapin Reserve Forest.

These isolated orangutan groups are unable to interact, which poses a significant risk to their survival through interbreeding among an already endangered species.

The footage of the young orangutan crossing the canopy bridge offers hope that such structures could effectively reconnect orangutan populations separated by roads.

Other primates, including gibbons, langurs, and macaques, have utilized the crossing in the past, but this marked the first sighting of an orangutan using the bridge.

Previously spotted using the bridge: gibbons. – Photo credit: SOS

“We’ve been anticipating this moment for two years,” Buckland stated. “Witnessing this young male orangutan confidently traverse a road via a canopy bridge is a significant conservation achievement, confirming that re-establishing connectivity in this fragmented landscape is possible.”

The bridge is one of five crossings installed using 200 meters (220 yards) of rope suspended among tall trees along the Lagan-Pagindall road.

Despite this progress, around 750 orangutans remain isolated along a narrow forest road in western Toba.

Erwin Alamsha Siregar, executive director of TaHuKah, expressed hope that the canopy bridge initiative could be replicated in other areas.

“We have shown that infrastructure developments and biodiversity conservation can coexist,” he noted. “There are effective ways to advance while safeguarding the natural environment.”

Sumatran orangutans are critically endangered, with only about 14,000 remaining in the wild. They are one of three species of orangutans native to Southeast Asia.

“This region of North Sumatra is crucial for global conservation efforts,” Buckland added. “A decline in wild orangutans can trigger cascading effects throughout ecosystems, including the natural resources on which local communities rely.”

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Source: www.sciencefocus.com

Rethinking the Cambrian Explosion: Evidence of Early Brain Development Before Shells and Limbs

A groundbreaking hypothesis suggests that the Cambrian Explosion, which marked a rapid surge in animal diversity around 500 million years ago, was primarily influenced by the early evolution of complex nervous systems rather than the development of shells and limbs.



Brain First: A schematic representation of the main points of the hypothesis. Image credit: Ariel D. Chipman, doi: 10.1002/bies.70136.

“The phase between the late Ediacaran and early Cambrian periods (approximately 550 to 520 million years ago) represents the most significant evolutionary development of animals on Earth,” stated Ariel Chipman, a professor at the Hebrew University of Jerusalem.

“During this time, there was a substantial increase in animal complexity and diversity, transforming the biosphere from a realm characterized by low diversity of primarily sedentary and bottom-feeding organisms to a dynamic environment filled with various motile animals, showcasing diverse locomotor modes and occupying dynamic ecosystems with an array of feeding strategies.”

“This transformative phase is often referred to as the Cambrian Explosion.”

Instead of seeking a singular reason for the surge in animal diversity, Professor Chipman reconstructs the Cambrian period as a series of interconnected developments in which escalating ecological complexity spurred the evolution of sophisticated nervous systems, particularly the brain.

As interactions between predators and prey intensified and marine environments grew more competitive, organisms faced heightened pressures to detect, process, and respond to their surroundings.

This ecological shift enabled the evolution of intricate neural systems adept at processing increasing sensory information.

At the core of this framework lies what Professor Chipman terms the ‘Brain First Hypothesis’.

This model proposes that brain expansion and regionalization occurred early in the evolutionary timeline, significantly contributing to subsequent anatomical innovations rather than being a mere byproduct of advanced bodily structures.

Notably, the researchers indicate that the genetic mechanisms responsible for brain development were not confined to the nervous system alone.

Through a phenomenon known as co-option, these genetic toolkits were repurposed for the formation of other organ systems.

This reutilization of existing developmental pathways facilitated the emergence of more complex body plans, including specialized digestive systems, advanced sensory organs, and segmental structures.

The rise in overall biological complexity allowed certain animal groups to thrive in a broader range of ecological niches, enhancing their evolutionary success.

This trend was not uniform across all life forms; it was particularly pronounced in groups like arthropods, mollusks, annelids, and chordates—lineages known for their high structural complexity and remarkable species diversity today.

“Instead of conceptualizing a single ‘explosion’, we should consider a sequence of interlinked steps,” Professor Chipman asserts.

“As environments evolved to be more complex, animals required improved methods to process information.”

“The evolution of the brain has made this possible, paving the way for even greater diversity in body forms and lifestyles.”

“It’s crucial to note that increased complexity is not inherently superior; several organisms have thrived with simpler body designs. This highlights that evolutionary success hinges on the specific demands of an organism’s environment.”

“By refocusing from a singular dramatic event to a series of gradual changes, this study offers a fresh perspective on the origins of animal diversity.”

“Future investigations, especially in genetics and developmental biology, may verify this hypothesis and further clarify the role of the brain in shaping the trajectory of life on Earth.”

Professor Chipman’s research paper was published in April 2026 in the journal bio essay.

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Ariel D. Chipman. 2026. Throughout the Cambrian, increases in animal diversity were driven by ecologically driven brain complexity. bio essay 48 (4): e70136; doi: 10.1002/bies.70136

Source: www.sci.news

Juno Discovers Rare Close-Up of Jupiter’s Shadow Moon Thebes

NASA’s Juno spacecraft has unveiled a stunning, new view of the irregular moon Thebes during a flyby on May 1, 2026, showcasing a battered world from just 5,000 kilometers away.



Thebes moon captured by Juno during a flyby on May 1, 2026. Image credit: NASA/JPL-Caltech.

Thebes is a small, irregularly shaped moon of Jupiter, measuring approximately 116 x 98 x 84 km, with an average radius of about 49 km.

It ranks as the second largest of Jupiter’s inner moons and the seventh largest among all moons in the Jupiter system.

Discovered by astronomer Stephen Synnott in 1979 using images from NASA’s Voyager 1 spacecraft, Thebes orbits Jupiter at an average distance of about 221,900 km, well within the orbit of Io, the innermost Galilean moon of Jupiter. The moon completes one orbit in roughly 16.1 hours.

Like many of Jupiter’s inner moons, Thebes is tidally locked, so the same side always faces Jupiter.

Thebes features a heavily cratered surface with a dark reddish hue, and its most notable characteristic is the large impact crater Zethos, named after the mythical twins of Thebes.

Moreover, Thebes is a crucial contributor to the Spiraea rings, one of the faint outer rings of Jupiter’s ring system. Impacts from micrometeorites eject dust from its surface, forming a diffuse ring along Thebes’ orbit.

“Thebes is located at the outer edge of Jupiter’s faint ring system and is believed to play a significant role in the formation of Jupiter’s ‘Similarian’ rings through dust ejection,” stated NASA scientists.

The latest imagery of Thebes was acquired by the Stellar Reference Unit (SRU) aboard the Juno spacecraft, captured from a distance of about 5,000 km.

“Though the SRU’s primary purpose is navigating the starry sky, its exceptional sensitivity under low-light conditions also makes it a highly effective secondary scientific instrument,” the researchers noted.

“The SRU has previously been instrumental in discovering ‘shallow lightning’ in Jupiter’s atmosphere and imaging Jupiter’s intricate ring system.”

Source: www.sci.news

New Study Shows Space Debris Descends Faster as Solar Temperatures Rise

Space debris, including defunct satellites and leftover rocket stages, poses an increasing risk to operational spacecraft and human space missions. Recent research indicates that heightened solar activity may accelerate the descent of space debris, influencing how scientists estimate satellite lifespans and collision probabilities.



When solar activity reaches approximately 67% of its peak, space debris descends more rapidly.

Low Earth Orbit (LEO), ranging from 400 to 2,000 km, serves as a prime location for image surveillance satellites, including Starlink and large-scale internet “megaconstellations.”

However, this region is cluttered with “space junk,” like retired satellites and rocket stages, posing risks to new launches. A single collision can trigger a chain reaction of extensive damage.

Efforts to use robotic systems for capturing space debris are still in their infancy. Researchers are currently focused on accurately tracking debris and identifying the most hazardous objects for future removal.

“We demonstrate that heightened solar activity accelerates the altitude loss of space debris surrounding Earth,” explained Dr. Aisha Ashraf, a researcher at the Vikram Sarabhai Space Center.

“For the first time, we reveal that this altitude reduction occurs significantly faster once solar activity surpasses a specific threshold.”

“This finding is expected to play a crucial role in planning sustainable future space operations.”

The sun operates on an 11-year cycle, alternating between active and quiet phases, which correlates with sunspot numbers and affects the intensity of solar radiation.

UV radiation and charged particles (such as helium nuclei and heavy ions) increase during active periods.

When this solar outburst peaks, as observed in 2024, it heats Earth’s thermosphere, located at altitudes of 100 to 1,000 km, with temperatures ranging from 500 to 2,500 degrees Celsius.

This elevation in atmospheric density around orbiting objects (350-36,000 km altitude) increases atmospheric resistance or “drag,” accelerating their descent.

In their study, Dr. Ashraf and colleagues analyzed the historical trajectories of 17 LEO space debris objects over a 36-year timeline beginning in the 1960s, encompassing the 22nd to 24th solar cycles.

These objects orbit the Earth every 90 to 120 minutes at altitudes of 600 to 800 km and have yet to reenter the atmosphere; eventually, they will combust upon reentry.

Since space debris does not engage in active station-keeping like artificial satellites, its descent rates are influenced solely by variations in thermosphere density.

“This characteristic makes space junk an excellent indicator for assessing the long-term impacts of solar activity on atmospheric drag,” stated the researchers.

They correlated these orbits with extensive data from the German Geoscience Research Center, which monitors sunspot activity alongside daily shifts in solar radio and extreme ultraviolet (EUV) radiation.

The findings indicated that when sunspot numbers exceed two-thirds of their peak, space debris crosses a “transition boundary,” prompting faster descent.

“This threshold appears unrelated to a specific solar radiation value but rather hinges on the sun’s proximity to its peak activity,” remarked Dr. Ashraf.

“At this juncture, the sun emits more intense EUV radiation, potentially due to amplified solar activities near the peak.”

The researchers emphasized that their discoveries will assist space scientists in optimizing satellite trajectories and mitigating collision risks with debris.

“Our findings suggest that when solar activity heightens beyond a particular level, satellites decline in altitude more rapidly, akin to space debris, necessitating more frequent orbital adjustments,” Dr. Ashraf noted.

“This directly impacts a satellite’s operational duration in orbit and its fuel requirements, particularly for missions launched close to solar maximum.”

“Remarkably, all this valuable information derives from objects launched in the 1960s.”

“They continue to contribute to our understanding and act as vital instruments for investigating the long-term effects of solar activity on the thermosphere.”

The team’s study has been published in the latest issue of Frontiers in Astronomy and Space Science.

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Aisha M. Ashraf et al. 2026. Characterizing the influence of solar cycles on long-term orbital degradation of Low-Earth Orbit space debris. Front. Astron. Space Sci. 13; doi: 10.3389/fspas.2026.1797886

Source: www.sci.news

New Koala Fossil Species Discovered in Museum Drawer: A groundbreaking Find

A long-neglected fossil in the Western Australian Museum’s collection has been identified as a new species of koala, named Phascolarctus sulcomaxiliaris. This ancient animal vanished from Western Australia as drought and cooling transformed its habitat at the end of the Pleistocene epoch.



Reconstruction of Phascolarctus sulcomaxiliaris. Image credit: Nellie Pease.

Comparatively, the modern koala (Phascolarctus cinereus) is Australia’s largest arboreal folivorous creature and serves as one of the continent’s most iconic marsupials.

Koalas inhabit various forest types along Australia’s east coast and have also migrated to parts of South Australia, including Adelaide and Kangaroo Island.

These remarkable animals are currently listed as vulnerable. Historically, their populations have faced declines due to habitat destruction, disease, vehicle strikes, predation by dogs, and hunting for fur, according to the IUCN.

“Although the koala is now locally extinct in Western Australia (WA), its remains have been known since 1910,” stated Dr. Kenny Trabouillon from the Western Australian Museum and Curtin University.

“Bones attributed to this species have previously been reported from several cave deposits in southwestern WA, including Koala Cave at Yanchep and Madura Cave on the Low Plains.”

Due to similarities in their teeth, Phascolarctus cinereus and the new species were historically considered the same.

In their study, paleontologists analyzed 98 bones from fossil specimens in the Western Australian Museum’s collection.

They compared the skulls, teeth, and posterior skulls to modern koala skeletons housed in museum collections along Australia’s east coast, revealing distinct and quantifiable differences that characterized Phascolarctus sulcomaxiliaris.

“This species exhibits several notable distinctions from contemporary koalas,” Dr. Trabouillon noted.

“The presence of large facial muscles in deep grooves of the cheekbones suggests that this koala may have possessed unusually large and flexible lips, potentially useful for manipulating eucalyptus leaves or enhancing its sense of smell to detect food from afar.”

Additionally, it appears that its skeletal structure was less agile than that of modern koalas, indicating it may have spent less time traversing trees.

Fossils of Phascolarctus sulcomaxiliaris have now been found across more than a dozen locations in southern Western Australia, including Yanchep, Margaret River, and the Low Plains near Madura.

This extensive distribution suggests that these koalas once occupied a significantly larger range than previously understood.

Radiometric dating indicates that Phascolarctus sulcomaxiliaris became extinct around 28,000 years ago.

“This timing coincided with significant climate change during the Late Pleistocene, when eucalyptus forests were reduced to about 5% of their current coverage,” explained Dr. Trabouillon.

“With substantial loss of food and shelter, the koalas in this region faced severe habitat degradation, likely leading to the extinction of this unique species.”

A detailed paper describing Phascolarctus sulcomaxiliaris has been published in today’s edition of Royal Society Open Science.

_____

Kenny Trabouillon et al. 2026. A new fossil of a Pleistocene koala (Marsupial: Phascolarctidae) from Western Australia. R Soc Open Science 13 (5): 251572; doi: 10.1098/rsos.251572

Source: www.sci.news

Rising Chances of ‘Super El Niño’: What It Means for Global Weather Patterns

Recent forecasts indicate that one of the most powerful El Niño events in history could arise in the upcoming months, sparking concerns about global temperature fluctuations, hurricane activity, droughts, and other extreme meteorological phenomena this year.

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For several months, forecasters have anticipated a potential “Super El Niño” that might continue until late 2026. Recent forecasts from the National Oceanic and Atmospheric Administration (NOAA) and the European Centre for Medium-Range Weather Forecasts suggest that the likelihood is rising.

El Niño is marked by elevated sea surface temperatures in specific Pacific Ocean regions. This significant climatic phenomenon typically results in rising global temperatures and alters weather patterns worldwide.

El Niño events generally amplify the warming trends associated with human-induced climate change, heightening the chances of above-average global temperatures.

According to the latest forecasts from the European Centre, evidence suggests sea surface temperatures in the central equatorial Pacific Ocean could exceed average levels by as much as 3 degrees Celsius (5.4 degrees Fahrenheit) this fall. If confirmed, this El Niño event could be classified as one of the most robust on record, potentially a “Super El Niño.”

A Super El Niño is defined by Pacific Ocean water temperatures that are at least 2 degrees Celsius (3.6 degrees Fahrenheit) above average.

NOAA’s report, released on Monday, noted that since mid-April, “near-average” sea surface temperatures have been recorded across most of the equatorial Pacific region.

Researchers closely track El Niño patterns due to their extensive implications for global temperatures and extreme weather occurrences.

Should a super El Niño develop in the coming months and persist into the next year; climate experts warn that global temperatures could soar to unprecedented levels by 2027.

El Niño events often suppress Atlantic hurricane activity by reinforcing upper-level winds, which can dismantle storms that are forming. The western United States typically experiences increased heat and humidity during El Niño, contributing to a higher probability of parched conditions in the southern regions.

Globally, El Niño also causes above-average rainfall in parts of Central Asia, South Asia, and the Middle East.

In 2015, the Super El Niño led to severe drought in Ethiopia and instigated water rationing in Puerto Rico, as reported by NOAA. This event also resulted in intensified tropical cyclone activity in the central Pacific basin, with 16 tropical cyclones reported, including three Category 4 storms in late August.

Source: www.nbcnews.com

How Bronze Age Britons Crafted Copper Mining Tools from Ancient Bones

Bronze Age Mining Tools

Bronze Age Tools: Wedges Made from Limb Bones

O. Zagorodnia

Despite having the technology for metal tools, communities in Bronze Age Britain effectively utilized animal bone tools in conjunction with metal for copper extraction over nine centuries, from 3700 to 2800 years ago.

A detailed study of 150 bones from a Bronze Age copper mining site at Great Orme, North Wales, reveals that these bones were deliberately chosen and crafted for specific mining tasks, particularly for extracting copper from soft rocks.

“This discovery challenges the conventional belief that Bronze Age mining relied predominantly on metal and stone tools. A more diverse and adaptable toolkit is emerging,” says Olga Zagorodnia from the British Museum.

Since the early 1990s, over 30,000 bone fragments have been unearthed at the site. Preliminary studies show that more than half of these fragments originate from cattle, with the rest primarily from sheep, goats, and pigs. Some bones are suspected to have served functional roles as tools, as noted in a 2011 study that identified wear patterns indicative of tool use.

By employing high-resolution microscopy, Zagorodnia and White analyzed the wear marks on the 150 bones. They replicated mining activities using bone tool replicas to compare wear patterns with those on ancient specimens.

“Notably, we observed rapid post-consumer wear development, which corroborated our microscopic findings,” remarks White. “Our experiments with bone splitting produced circular fracture patterns that mirrored those found in the archaeological samples, creating a tangible link to the ancient miners.”

The findings imply that these bones were purposefully modified into various tools, including wedges fashioned from limb bones for splitting soft rocks potentially rich in copper. Evidence of tapering and polishing suggests that some tools were designed to be affixed to a handle, akin to a metal pick, a significant new discovery.

Scoops Crafted from Scapula and Pelvic Bones

O. Zagorodnia

Conversely, rib bones likely served to carve through soft sandy limestone, possibly acting as scrapers or agitators to enhance copper separation during ore processing. Moreover, researchers identified tools fashioned from scapula or pelvis bones that may have been utilized for shoveling or scraping fine ore.

“The evidence from Great Orme signifies a continuation of long-established technological practices, predating metalworking.” Researchers posit that bones, as readily available resources in pastoral societies, offered a labor-efficient alternative to crafting metal tools.

The findings align with those from other prehistoric mining sites across Europe, where bone tools have been discovered. “Bronze Age communities in Britain and Europe didn’t merely switch to metal; they employed an integrated approach, utilizing both materials creatively,” notes White. “This reflects a profound understanding of material properties and hints at organized mining techniques involving specialized tools and potentially skilled labor.”

“Both authors introduce a remarkable level of scientific rigor to this unique field of artifact research.” states freelance archaeologist Simon Timberlake from Cambridge, UK. “To fully grasp the advancements that transitioned Stone Age technology into the Metal Age, we must thoroughly investigate the tools they employed.”

Discover the Origins of Humanity and Prehistoric Times in South-West England

Engage in an enriching experience of the early human eras, including the Neolithic, Bronze Age, and Iron Age, with this gentle walking tour.

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Source: www.newscientist.com

Growing Trend: The Rise of Dating for People Over 50 – What You Need to Know

Research indicates that love in later life is significantly underexplored.

Alejandro Muñoz/Alamy

Recent findings from the Science Council on Romance reveal a lack of understanding regarding how dating dynamics change for older adults. However, there’s growing evidence that romantic relationships among individuals over 50 are becoming increasingly common, prompting researchers to investigate how love evolves later in life.

“There is a significant gap in data,” says Mairi McLeod, who leads the Evolved Dating program aimed at helping women over 50 find loving partners. “Nevertheless, maintaining a fulfilling relationship after 50 is crucial; we still desire intimacy and companionship,” she states.

The Rising Trend of Dating for Older Adults

During a recent conference held in Edinburgh, UK, McLeod noted several factors contributing to the increase in dating among those over 50. This demographic has expanded significantly; in the UK alone, the number of individuals aged 50 and older grew by 3.1 million over the last decade, a trend anticipated to continue for the next 20 years.

Moreover, McLeod highlighted that divorce rates among older adults are rising in Western nations like the UK and the US, leading to a higher number of single individuals over 50. It’s also becoming more socially accepted for individuals to seek new partners following the loss of a spouse or the end of a relationship.

The Research Focus Shifts

Despite the increasing prevalence of older adults dating, most research has centered on college students and younger adults. This focus neglects the dating experiences of individuals over 50, as certain experts, such as Craig Roberts, have pointed out.

One explanation for the lack of research on late-life dating is the societal perception that love is primarily linked to reproduction, with many assuming romantic love fades after the age of 50. Divinity Charla, a psychologist at York St John University, emphasizes that societal and economic forces often prioritize funding for studies on younger demographics, neglecting the romantic lives of older generations.

Charla notes that older individuals continue to experience romance and desire, often underrepresented in societal narratives about aging. “When I mention romantic love, my 92-year-old patients often share stories of sexuality, romance, and seeking companionship,” he explains.

Challenges and Advantages of Dating Later in Life

According to McLeod’s findings, heterosexual women over 50 in the UK face unique challenges in finding partners. “Starting around 50, the male population diminishes, as men generally have shorter lifespans and often seek younger partners,” she highlights.

This demographic trend results in older women competing for a smaller pool of available men. “There’s a consistent shortage of men at speed dating events, leading to cancellations when turnout is insufficient,” McLeod adds.

Despite these challenges, McLeod’s Evolved Dating program has successfully supported over 200 women through weekly group calls over six months, gaining insight into the nuances of dating later in life for well-educated, affluent women in the UK. “Older women often enjoy advantages such as financial independence and the absence of a biological clock,” she notes.

McLeod concludes, “Older women are more empowered to make choices and may opt not to pursue a relationship if decent options aren’t available.”

Looking ahead, McLeod and Roberts aim to conduct a study focusing on the challenges of dating later in life, offering practical tips for older singles seeking love.

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Source: www.newscientist.com

Ancient Bite Marks Reveal Tyrannosaurus: The Multifaceted Behavior of a Legendary Predator

A transformative study conducted by paleontologists at Aarhus University challenges the long-held belief that tyrannosaurs were exclusively apex predators. By analyzing 16 meticulously mapped bite marks on the bones of a 75-million-year-old Tyrannosaurus rex, researchers found that smaller Tyrannosaurs scavenged on their larger tyrannosaurid relatives.



Visualization of a small Tyrannosaurus rex eating the carcass of a larger Tyrannosaurus. Image credit: Yu Xin, Shen Li, Liang Junwei, Aarhus University.

“Tyrannosaurus was the apex terrestrial predator in the Northern Hemisphere during the Late Cretaceous period,” stated lead author Josephine Nielsen, a master’s student at Aarhus University, alongside her research team.

“Species found in the Campanian region of the northern interior of western North America include Daspletosaurus and Gorgosaurus.”

“Tyrannosaurs were substantial predatory carnivores with massive skulls capable of enduring extreme bite forces and stresses.”

“Bites can crush and process bones, even from prey significantly larger than themselves, as evidenced by coprolites containing bone fragments.”

“However, such fossils do not provide direct evidence of biting strength, and debates continue concerning the feeding strategies of Tyrannosaurus and their ecological interactions.”

Nielsen and her colleagues utilized advanced 3D scanning technology to identify 16 bite marks on a fossilized metatarsal (foot bone) of a giant tyrannosaur.

“By examining the depth, angle, and position of the bite marks in a virtual 3D setting, we demonstrated that these marks were not incidental,” Nielsen remarked.

“These distinct tooth impressions of a smaller tyrannosaurus indicate scavenging on much larger relatives.”

This groundbreaking study sheds light on the recycling of resources in the age of dinosaurs, revealing their behaviors as scavengers.

The robust leg bones may have been consumed late in the decomposition phase, after most of the flesh had been stripped away.

“The bone lacks signs of healing after a bite from a smaller dinosaur,” Nielsen noted.

“The marks were found on a foot that had minimal flesh, indicating the dinosaur was possibly ‘sweeping’ and scavenging the last remnants of a carcass.”

The authors conducted their research using digital models and 3D printed replicas instead of original bones.

The metatarsals measured 10 cm in length and belonged to a tyrannosaurid estimated to be between 10 to 12 meters long and weighing several tons during its lifetime.

The bones were uncovered by amateur fossil hunters in the Judith River Formation in Montana. This region is an eroded landscape that acts as a geological archive of a 75-million-year-old ecosystem, teeming with dinosaur fossils.

“What makes this study exceptional is not only the insight into ancient dinosaur food chains, but also the innovative technology employed to extract these details.”

“By developing a digital version, we can now zoom in on intricate details.”

For more in-depth findings, visit this study published in the journal Evolving Earth.

_____

Josephine Nielsen et al. 2026. Investigating size-asymmetric feeding in tyrannosaurids using metatarsal tooth impressions from the Judith River Formation, Montana, USA. Evolving Earth 4:100107; doi: 10.1016/j.eve.2026.100107

Source: www.sci.news

Deforestation Risk: Potential Tipping Point for the Amazon Rainforest in the 2030s

Deforestation Driven by Cattle Ranching in the Amazon Rainforest

Credit: Paralaxis/Alamy

The ongoing destruction of the Amazon rainforest, primarily for cattle ranching, poses a significant threat to this vital ecosystem, increasing its vulnerability to irreversible collapse within decades if deforestation persists.

An alarming study from 2022 revealed that global warming surpassing 3.5 degrees Celsius—or even 2 degrees Celsius—could trigger widespread dieback across the Amazon. Current projections indicate the Earth may warm by approximately 2.6°C to 2.7°C above pre-industrial levels by 2100. Notably, this study did not factor in deforestation, which has already resulted in at least a 15% loss of the Amazon.

Researchers at the Potsdam Institute for Climate Impact Research, including Nico Wandering, are analyzing scenarios for the Amazon’s future, considering the combined impacts of global warming and severe deforestation by 2050. Their findings suggest that if total forest loss reaches 22%, widespread dieback may occur even with just 1.5 degrees Celsius of warming. Since the world has already warmed by approximately 1.3°C to 1.4°C, we could reach 1.5°C by the end of this decade.

While deforestation rates slowed last year, a resurgence could see the Amazon cross its critical tipping point as soon as 2031. The potential timing and scale of deforestation hinges on human carbon dioxide emissions; rates between 22% to 28% could transform 62% to 77% of the Amazon biome into grassland, savannah, or shrubland.

“We discovered that factoring in deforestation reduces the threshold for global warming by about 2 degrees,” says Wandering. “This is primarily because deforestation disrupts the crucial recycling of atmospheric moisture.”

The Amazon’s dense network of trees plays an essential role in maintaining regional moisture levels, with up to 50% of precipitation being recycled within the forests. However, deforestation hampers this process, which can result in a cascading loss of forest areas.

Despite the serious implications of these findings, they are grounded in high deforestation rates threatening currently protected areas. As pointed out by David Armstrong McKay, who contributed to the Tipping Point study at the University of Sussex, Brazil is projected to lose over 28,000 square kilometers of primary forest by 2024. However, projections suggest that by 2025, that figure will nearly halve. President Luiz Inacio Lula da Silva has committed to ending deforestation in the Amazon by 2030; if successful, this could prevent crossing the tipping point even under continued global warming.

While completely halting all deforestation may seem optimistic, Armstrong-McKay notes that even continued deforestation is unlikely to match the worst-case scenarios outlined in current research.

Nonetheless, Brazil is still expected to lose around 0.5% of its primary forest by 2025. In recent years, wildfires have contributed to two-thirds of deforestation, often starting when farmers burn vegetation and then flee into adjacent forest areas.

Once rare, wildfires have become more commonplace as conditions in rainforests grow hotter and drier, a trend likely to worsen with expected El Niño conditions later this year. As a result, the study may be underestimating the Amazon’s vulnerability, according to Dominique Spracklen from the University of Leeds.

“We are observing increasingly large fires,” he states. “Transitioning into this new regime raises significant concerns.”

The Amazon has already transitioned from being a carbon sink to a carbon source; widespread dieback may release enough carbon to increase global temperatures by up to 0.2 degrees Celsius, alongside potentially devastating impacts on terrestrial biodiversity.

“It’s imperative that we divert away from this threshold rather than inch closer to it,” urges Spracklen.

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Source: www.newscientist.com

Accidental Treatment May Have Saved Man Predestined for Alzheimer’s Disease

Doug Whitney (left, with his son Brian in November 2022) is genetically predisposed to developing Alzheimer’s disease, yet he has avoided it so far.

Shelby Lum/Associated Press/Alamy

Doug Whitney, an American man with a genetic predisposition for early-onset Alzheimer’s disease, has successfully avoided the illness, possibly due to accidental heat exposure while working as a mechanic in a ship’s engine room. This incident aligns with emerging research indicating that heat therapy may mitigate Alzheimer’s symptoms.

Whitney’s family carries a genetic variant known as Presenilin 2, inherited from ancestors in a Volga German village dating back to the 18th century. Carriers of this variant typically experience Alzheimer’s symptoms in their late 40s or early 50s.

“My family has been devastated by this disease,” Whitney stated in a press statement. “My mother had 13 siblings, and 10 of them died before they were 60. It was an epidemic.”

Despite having the same mutation, Whitney reached his late 70s without significant memory loss or Alzheimer’s symptoms, making him the only known carrier to escape the condition well beyond the expected onset age.

Jeffrey Kane, a doctor at the French National Center for Scientific Research, became intrigued by Whitney’s case during a conference. He discussed it with Randall Bateman, who has researched Whitney for many years.

At the conference, Kane shared research on hyperthermia’s positive effects on mouse brains. A Finnish study revealed that frequent sauna users are 65% less likely to develop Alzheimer’s disease. Kane and colleague Emmanuel Planel from Université Laval aimed to examine the mechanisms behind this observation.

The results were compelling, especially since Bateman noted Whitney’s extensive work in excessively hot engine rooms of naval vessels for over two decades, beginning at age 18. This led to encouragement from Kane and Planel to further investigate.

In the ship’s engine room, temperatures could soar to 50°C (122°F), and Whitney frequently spent hours inside, sometimes needing to cool down with hoses to prevent overheating.

This prolonged heat exposure likely led to Whitney exhibiting elevated levels of heat shock proteins in his cerebrospinal fluid, which are produced to repair and refold damaged proteins in response to heat.

The increased heat shock proteins might have shielded Whitney from Alzheimer’s development by regulating an essential brain protein called tau, according to Canet. In Alzheimer’s patients, tau proteins misfold and aggregate, correlating with cognitive decline. Imaging studies show that Whitney’s brain contains minimal abnormal tau, explaining his symptom absence. Conversely, his brain is filled with misfolded amyloid proteins, typical in Alzheimer’s, yet symptoms remain unpredictable.

Whitney prepares for a PET scan in March 2025 as part of the annual Alzheimer’s Research Testing Program at Washington University in St. Louis, Missouri.

M. Scott Brauer 2025/ Redux/eyevine

Supporting their findings, Kane and Planel discovered that placing mice in a mini sauna helped maintain the tau protein’s structure and boosted its clearance from the brain. Likewise, tau clearance was found to be enhanced in healthy older adults during wakefulness compared to sleep, likely due to natural increases in body temperature when awake.

Rebecca Nisbet, a researcher at the Florey Brain Research Center in Australia, suggests that Whitney’s work-related heat exposure may contribute to his Alzheimer’s resistance, although genetics likely also play a role. “He may possess protective genes that others in his family do not,” she notes, referencing genes known to influence Alzheimer’s susceptibility.

Nonetheless, Nisbet has started using saunas herself, inspired by evidence indicating their brain health benefits. “I believe this harmless practice can significantly lower dementia risk,” she asserts.

Interestingly, regions with the lowest rates of cognitive impairment and Alzheimer’s disease in individuals over 60 typically experience high temperatures, such as Ballabhgarh, India, and the Bolivian Amazon. “While high temperatures alone aren’t a definitive explanation, they may play a part,” adds Canet.

On the contrary, exposure to cold may elevate Alzheimer’s risk. For instance, tau is known to dysregulate during bear hibernation, according to Nisbet. “The tau in a bear’s brain appears dysfunctional during hibernation but normalizes quickly upon warming,” she explains.

Human studies have also indicated that general anesthesia, which lowers body temperature, can lead to cognitive issues similar to those seen in Alzheimer’s, likely due to its impact on tau. “Caution is necessary in mouse studies since prolonged anesthetic exposure can lead to tau dysregulation,” Nisbett cautions.

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  • Alzheimer’s Disease

Source: www.newscientist.com

Discover the 2023 Young Science Writer Award Winners

New Scientist - Explore the Latest in Science, Technology, Health, and Environment

Hasset Kifle Receives Award

Mark Lewis/Mark Lewis Photography

The world is evolving at an unprecedented pace, with rapid technological advancements transforming various fields. This relentless human pursuit of innovation has increasingly influenced sports, prompting the question: “How far is too far?”

Running serves as a definitive measure of both our physical and mental capabilities, characterized by intense competition—athlete versus athlete, and athlete against the clock. It has also become a competitive ground for top-tier brands.

The term “technological doping” highlights the competitive edge provided by cutting-edge sports gear, reshaping our understanding of athleticism. In just seven years, records for the fastest marathons and half marathons have shifted, with Paula Radcliffe’s 2003 marathon being a notable exception.

What has led to these remarkable achievements? Much of it can be attributed to “super shoes.” Extensive laboratory testing and field studies have demonstrated that these advanced footwear enhance athletic performance. Four key components make them revolutionary:

  • Midsole Foam: Acts as a shock absorber, reducing ground impact.
  • Curved Carbon Fiber Plate: Optimizes stride efficiency.
  • Stack Height: Determines cushioning level between foot and ground.
  • Breathable Upper: Ensures comfort and temperature regulation.

These features combine to create a lightweight, cushioned, and flexible shoe that enhances energy efficiency. Super shoes can return 87% more energy compared to traditional running shoes, significantly boosting runners’ speed and efficiency. Nike popularized this trend with the release of the Vaporfly in 2016, which was backed by a study asserting a 4% improvement in oxygen efficiency over conventional marathon shoes, based on the top three male finishers at the 2016 Olympics.

However, the introduction of shoes like the Vaporfly has sparked controversy, as many records have fallen to athletes wearing them. In response, the World Athletics Federation has implemented regulations that limit certain shoe features, such as a maximum stack height of 40 millimeters and the use of only one carbon plate.

Critics argue that contemporary athletes might not meet past standards due to the advantages offered by modern technology. A potential proposal is to establish separate records for technology-assisted performances, raising the question: Who are the true competitors—athletes or brands crafting these technologies?

Interestingly, there may also be psychological impacts linked to super shoes. Athletes might develop a reliance on these shoes for performance, overshadowing their own physical training.

Athletes strive for record-breaking performances, while fans eagerly anticipate these milestones in high-stakes events, such as the 100 and 200 meters featuring renowned athletes like Noah Lyles and Sha’Carri Richardson. But does this obsession for speed come at a cost?

At its core, running is the ultimate testament to physical fitness, whether it’s the strength needed for sprints or the endurance required for marathons. It’s a constant battle of mind over body, beginning long before the starting gun sounds. Having competed across various distances and trained alongside super shoe athletes, I recognize the need for the sport to evolve—yet maintaining its integrity is equally crucial. If losing credibility is the price, we face a significant collective decision.

Written for the Young Science Writer Award, an initiative by the Association of British Science Writers (ABSW).

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Source: www.newscientist.com

Record-Breaking 481-Meter Tsunami Triggered by Massive Landslide in Alaska

Reconnaissance flight captures aftermath of tsunami in Tracy Arm Fjord.

Cyrus Reed/U.S. Geological Survey

A significant landslide in August 2025 triggered the second-largest tsunami recorded, elevating water levels by over 480 meters in an Alaskan fjord.

The tsunami surged through the fjord at a remarkable speed of at least 70 meters per second, generating a seiche, or reflected wave, that persisted for 36 hours.

Historically, the only larger event was the 1958 Lituya Bay tsunami in Alaska, which surpassed a 530-meter surge.

The Juneau area in Alaska features breathtaking landscapes, where glaciers descend into seas flanked by steep fjords, attracting thousands of cruise ships annually.

However, the tsunami struck at 5:26 a.m. deep within the Tracy Arm Fjord in southeastern Alaska, keeping tourist boats clear of the disaster zone. Dan Sugar from the University of Calgary commented on the event.

“This was an incredibly large and fearsome wave,” Sugar remarked. “If any ship had been in the upper fjord, its survival would have been uncertain.”

Using satellite imagery, seismic data, eyewitness accounts, and computational models, researchers reconstructed the tsunami event. They concluded that retreating glaciers destabilized the surrounding terrain, leading to the massive landslides responsible for the waves.

Throughout the 20th century and recent years, the South Sawyer Glacier has retreated more than 10 kilometers and significantly thinned out.

Despite this retreat, researchers did not anticipate a catastrophic collapse, as 64 million cubic meters of rock plummeted into the fjord. In retrospect, they noted small tremors leading up to the landslide.

At 5:45 a.m., a group of kayakers camped 50 kilometers away awoke to find their site flooded and equipment swept away.

Researchers learned about the disaster within hours due to the landslide triggering a magnitude 5.4 earthquake. However, it took until mid-October for a team to access the area for investigation.

Sugar warns that this event could signal a future with increased tsunami risks due to climate change, stating, “We hope this serves as a wake-up call for policymakers in regions like North America, Greenland, New Zealand, and Chile, where steep terrains border oceans and lakes. These tsunamis are likely an underestimated threat.”

“Generally, tsunamis aren’t directly linked to climate factors, making this a clear example of how climate change can indirectly cause natural disasters previously unassociated with it,” said Martin Koehler from the University of Queensland.

“We were lucky there were no ships in the vicinity during the incident, especially given the regular cruise traffic and the suddenness of the event.”

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Source: www.newscientist.com

Why Robin Wall Kimmerer’s ‘Braiding Sweetgrass’ is a Must-Read Science Book

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Explore science news and in-depth articles on technology, health, and the environment with New Scientist.

How to Weave Sweetgrass by Robin Wall Kimmerer is an essential scientific read 13 years post-publication

For Indigenous communities, Western science is seldom impartial. Its roots are deeply entwined with colonialism and the transformation of knowledge into power, wealth, and policy. Fifteen years after the establishment of the United Nations, nations began respecting Indigenous knowledge and culture, leading to widespread discussions on reconciliation. However, tangible progress often remains elusive. While we hear calls to “listen to Indigenous voices,” there is little clarity on how to harmonize Indigenous knowledge with Western science, or even if such collaboration is beneficial.

I visited Robin Wall Kimmerer’s home. Weaving Sweetgrass, first released in 2013, left me questioning whether she was artfully bridging the gap between Indigenous knowledge and science. Kimmerer, a botanist and member of the Potawatomi Nation, offers not just a manifesto but a living example of what Native science—particularly in plant studies—truly entails. Through a series of beautifully crafted essays, she uncovers how scientific inquiry is shaped, including the questions posed, the design of experiments, and the interpretation of results.

One of the most impactful chapters delves into experiments involving sweetgrass, the aromatic plant central to her book and holding deep significance for many Indigenous cultures. Kimmerer and her team explored whether various human harvesting techniques harmed sweetgrass plots. They compared uprooted plots, those meticulously plucked at the base, and untouched control plots. The unexpected outcome revealed that sweetgrass thrived when humans harvested it, regardless of the method, while the untouched plots fared the worst.

Kimmerer faced significant skepticism from a predominantly white male scientific committee. Their concern lay in challenging the foundational belief that humans are inherently detrimental to nature and that conservation necessitates withdrawal. They operated under the assumption that the best approach was to be hands-off, leading to the absence of viable solutions.

Yet, Kimmerer’s narrative contrasts this perspective, highlighting that Indigenous land management recognizes the importance of sustained interactions for ecological health. Modern science increasingly corroborates this, with fire ecologists now acknowledging that Indigenous burning practices can mitigate the risk of devastating wildfires. Conservationists are also looking to Indigenous research for guidance on resource extraction.

In her book, Kimmerer illustrates the immense power of Indigenous knowledge. It not only uncovers hidden assumptions embedded in Western science and environmental policy but also advocates for a different, more caring relationship with the natural world.

This commitment imbues Weaving Sweetgrass with a quiet urgency. In a time defined by ecological crisis, the book serves not just as critique but as a beacon of healing. Kimmerer urges readers to rethink daily actions—like eating and harvesting—as potentially reciprocal rather than extractive. She invites us to envision a mutually beneficial relationship with the Earth, fostering responsibility and gratitude over guilt and alienation.

Kimmerer’s prose radiates tenderness stemming from her lifelong connection with plants, resisting the notion of nature as merely maternal and humanity as either the villain or the savior. Instead, she embraces our complex roles: estranged children, inadvertent intruders, devoted caretakers, and inquisitive witnesses. Most importantly, she asserts that addressing environmental collapse requires us to abandon the myth that we have ever been completely separated from nature.

Near the conclusion, Kimmerer encourages readers to revisit a flower and see it anew. Through the lens of Western science, the flower embodies evolutionary triumph; its pigments attract pollinators, shaped by eons of natural selection. Indigenous knowledge does not negate this view; rather, it enriches it, allowing us to understand flowers as gifts, relatives, and invitations to a deeper relationship.

That is Weaving Sweetgrass. It doesn’t demand that science relinquish its methodologies or standards but invites us to remember what we have forgotten: knowledge is not solely about control; it’s also about care. It serves as a guide to perceiving nature and finding our place within it.

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Proven Simple Habits for a More Efficient Heartbeat

Does exercise “deplete” your heart rate? No, research indicates that the human heart rate is not fixed. In fact, engaging in regular exercise reduces lifelong stress on your heart.

While your heart rate increases during physical activity, consistent exercise strengthens your cardiac muscles, makes your heart more efficient at rest, and often results in a lower average resting heart rate. As you’ve likely observed, many fit individuals have a resting pulse rate of just 40 to 50 beats per minute.







Interestingly, the average human heart beats 2.5 to 3 billion times over a lifetime, and this number isn’t predetermined.

Incorporating exercise into your routine is one of the best choices you can make for durable heart health. Just a few hours of consistent, targeted activity each week can significantly enhance your heart’s efficiency, allowing you to truly appreciate every single beat.


This article addresses the question posed by Terry Seward from Bradford: “Does exercise ‘deplete’ your heart rate?”

If you have any inquiries, feel free to reach out to us at: questions@sciencefocus.com or send us a message Facebook, Twitter, or Instagram (please include your name and location).

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Newly Discovered Extinct Koala Relative Found in Western Australia

Western Australian Koala Impression

An Artist’s Impression of Western Australia’s Koalas

WA Museum

Australia’s unique wildlife once included a second species of koala, endemic to Western Australia, which became extinct approximately 30,000 years ago.

The sole surviving species, Phascolarctus cinereus, thrives primarily in the eucalypt forests of eastern Australia. Unfortunately, they face threats including habitat destruction, disease outbreaks, vehicular collisions, and predation by invasive species.

Over the last century, fossils of koalas dating from 137,000 to 31,000 years ago have been unearthed in Western Australian caves. However, researchers lacked sufficient material to determine distinct species classifications until recently.

In the past 25 years, more fossils have been discovered, including a well-preserved skull donated by the family of the late speleologist, Lindsay Hatcher, who explored numerous caves in southwest Western Australia.

“The donation included a koala skull in excellent condition,” reveals Kenny Travouillon from the Western Australian Museum. “Upon examining the skull, we noted some differences from modern koalas, prompting further research into our fossil collection.”

To the untrained observer, the new species, named Phascolarctus sulcomaxiliaris, may appear similar to P. cinereus, but they exhibit notable differences.

“Essentially, the Western Australian koalas were similar yet distinct,” Travouillon explains. “Their heads were shorter and had less developed masticatory muscles compared to their eastern counterparts, indicating a different chewing mechanism, characterized by larger teeth and shorter jaws suited for efficiently processing leaves.”

The pronounced grooves on the cheeks of P. sulcomaxiliaris suggest the presence of robust muscles for maneuvering large lips to grasp leaves or to enhance their sense of smell from a distance. Additionally, its skeleton appears less agile, implying it was not as adept at navigating through trees.

About 30,000 years ago, as the climate dried and forests in Western Australia diminished, P. sulcomaxiliaris became extinct alongside many other species that shared this habitat, including the Tasmanian devil, sugar glider, echidna, short-faced kangaroo, and the giant marsupial Zygomaturus.”

“The first human inhabitants of Western Australia would have coexisted with these fascinating creatures, witnessing their extinction,” notes Tim Flannery of the Australian Museum in Sydney. “This research provides compelling evidence that the Western Australian koala represents a unique species. We hope to extract DNA from these fossils in the future.”

Fossil Hunting in the Australian Outback

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Why Men’s Handwriting Tends to Be Worse Than Women’s: Uncovering the Truth

Research indicates that women write faster and with greater legibility than men. This difference is evident as early as elementary school, becomes more pronounced by junior high, and then stabilizes.

Both genders enhance their handwriting skills with age, yet statistically, women outperform men on average.

This trend appears consistent across various countries and cultures. But does this imply that biological factors are at play? Current evidence suggests it likely does not.







A 2020 study published in Human Brain Mapping utilized fMRI scans to demonstrate that men and women activate different brain regions while performing handwriting tasks, even when handwriting quality is equivalent.

Neural pathways develop through life experiences, which may cause individuals to engage varying brain areas when executing the same skill. This depends on their initial learning experiences, instructional methods, and the extent of their practice.

In broad terms, girls and boys often have differing expectations regarding the importance of neatness and receive varying degrees of encouragement in developing fine motor skills.

Cultural influences shape **gender disparities in handwriting**, highlighting how girls and women are taught to place value on neatness, unlike boys and men. – Credit: Getty

Notably, many left-handed individuals are often perceived to have poor handwriting. However, this perception is likely influenced more by practice and educational methods than by biology, as left-handed people can achieve excellent handwriting.

Men typically exhibit worse handwriting on average, largely due to the societal value placed on this skill being lower for men. However, it’s essential to recognize that the differences within each gender often surpass the differences between them.


This article addresses the question posed by Aydin Andrews via email: “Why do men tend to have worse handwriting than women?”

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Unlock Youthful Skin with Ice Rollers: Discover Their True Benefits

For centuries, cold substances have been utilized to address various skin issues.

Medical professionals often apply liquid nitrogen to effectively freeze warts. Notably, devices for treating acne with liquid oxygen have existed since the 1920s, although their efficacy remains subject to debate.










Regarding ice rollers, there currently are no clinical trials confirming their benefits.

For those looking to minimize swelling, theoretically, some temporary improvements may occur due to the constriction of small blood vessels near the skin.

Evidence suggests that soaking your face in cold water could stimulate the “rest and digest” (parasympathetic) pathway of the nervous system, although this practice is not widely recommended. Bururu.


This article addresses the question: “Should I start using an ice roller?” (submitted by Rebecca Webb, Newry).

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Research Reveals Earth’s First Organisms Used Molybdenum for Biochemical Processes

A groundbreaking study reveals that approximately 3.4 billion years ago, during the Archean Era, ancient microbes were not only reliant on molybdenum—a rare metal at the time—but also explored the use of tungsten. This discovery has the potential to transform how astrobiologists search for extraterrestrial life.

Early Earth. Image credit: Peter Sawyer/Smithsonian Institution.

Geochemical evidence indicates that the concentration of molybdenum in early Earth’s anoxic oceans was extremely limited; however, modern organisms are largely dependent on this essential element.

Previous theories proposed that life initially utilized tungsten before transitioning to molybdenum as it became more abundant.

Professor Betül Kaçar from the University of Wisconsin-Madison and her research team aimed to test this hypothesis.

“The transition metal molybdenum presents a puzzling evolutionary narrative in relation to biological systems,” the researchers stated.

“Molybdenum plays a significant role in vital biogeochemical processes involving carbon, nitrogen, and sulfur, which previous studies suggest have deep-rooted evolutionary histories.”

In their research, the authors analyzed genome databases to pinpoint species with genes responsible for molybdenum transport, storage, and enzymatic functions.

They applied a technique known as phylogenetic matching to trace the evolutionary lineage of molybdenum- and tungsten-utilizing proteins within the current tree of life.

Moreover, they investigated the mechanisms of molybdenum movement and utilization within living cells, focusing on intracellular transport from uptake to catalysis.

Simultaneously, they explored the historical context of biological tungsten use for similar functions.

The researchers compiled existing data regarding molybdenum’s prevalence over time and found that, despite its scarcity, ancient microorganisms on Earth found ways to utilize it, dating back to between 3.3 and 3.7 billion years ago.

“Counterintuitively, geochemical records suggest that the abundance of molybdenum on early Earth was significantly lower billions of years ago, particularly prior to the emergence of oxygenic photosynthesis,” noted Dr. Aya Cross, a student at the University of Wisconsin-Madison.

“Yet, life persisted in evolving biochemical pathways that depended on molybdenum, despite its limited availability.”

“These processes have been passed down to modern organisms.”

“Understanding the elemental dependencies of early life could aid astrobiologists in identifying other planets capable of supporting life,” Professor Kaçar remarked.

“This study illustrates that a lack of an element in the environment doesn’t negate the potential for life to adapt and exploit it in innovative ways.”

“Life exhibits remarkable adaptability, and insights like these remind us that the quest for extraterrestrial life may necessitate considering possibilities previously unimagined.”

A research paper detailing these findings was published in the latest edition of Nature Communications.

_____

AS Cross et al. 2026. The biological utilization of molybdenum and tungsten dates back 3.4 billion years. Nat Commun 17, 3943; doi: 10.1038/s41467-026-72133-0

Source: www.sci.news

Researchers Uncover Key Molecular Insights into the Health Benefits of Coffee

A recent study conducted by Texas A&M University researchers sheds light on why coffee drinkers tend to live longer and experience fewer chronic diseases. The findings indicate that brewed coffee is rich in compounds that interact with little-understood proteins in the body, potentially affecting inflammation, aging, and cancer processes.

Hailemariam et al. revealed that brewed coffee and its principal polyphenolic and polyhydroxy components act as NR4A1 ligands, suggesting NR4A1’s vital role in the health benefits associated with coffee. Image credit: Sci.News.

“Coffee is the most widely consumed beverage globally,” stated Texas A&M University professor Steven Safe and his team.

“Coffee drinkers comprise a vast demographic that enjoys an aqueous extract from roasted and ground coffee berries.”

“The health benefits of coffee mirror those seen in vegetarian groups and various ‘blue zone’ populations known for lower mortality rates and age-related diseases.”

“Despite variations in coffee bean types and brewing techniques, consensus indicates that coffee drinkers enjoy longer lifespans.”

“They also face a decreased risk of age-related conditions, including metabolic disorders, certain cancers, Parkinson’s disease, dementia, and cardiovascular issues.”

In their investigation, researchers concentrated on NR4A1, a receptor that responds to dietary compounds and is essential for maintaining health in aging individuals.

This receptor activates during inflammation and cellular damage, and it has been shown to protect tissues.

“When tissue is damaged, NR4A1 activates to help mitigate that damage,” Professor Safe explained.

“Removing this receptor results in even greater tissue damage.”

Through biochemical experiments, the team discovered that freshly brewed coffee and several of its key components bind to NR4A1.

Identified compounds included common coffee polyphenols like caffeic acid, chlorogenic acid, and ferulic acid, along with diterpenes such as kahweol and cafestrol.

“Our findings suggest that at least some of coffee’s health benefits stem from their ability to bind to and activate this receptor,” Professor Safe noted.

Experiments on cancer cell lines indicated that coffee extract and its constituents slowed cell proliferation.

When NR4A1 levels were reduced, the effects waned, implying that this receptor mediates the biological activities of coffee.

Many of these compounds served as inverse agonists, reducing NR4A1 activity in a way that may counteract tumor-promoting signals.

“Coffee consists of a highly complex array of compounds, creating a powerful blend,” Professor Safe remarked.

Notably, not all components yield the same effects. While caffeine is often seen as the primary component of coffee, it has been shown to exert more diverse and relatively weaker effects on receptors compared to polyphenols.

The research supports the notion that coffee’s benefits are likely due not just to caffeine, but to a complex mixture of bioactive compounds.

Brewed coffee contains over 1,000 chemicals, many of which have antioxidant and anti-inflammatory properties.

“Caffeine binds to the receptor but doesn’t significantly aid in our model,” Safe emphasized.

“Polyhydroxy and polyphenolic compounds demonstrate much more activity.”

“This could explain why both regular and decaffeinated coffee link to similar health benefits in extensive population studies.”

For more details, refer to the study results published in the journal nutrients.

_____

Amanuel Hailemariam et al. 2026. Brewed coffee and its components act through orphan nuclear receptor 4A1 (NR4A1). nutrients 18 (6): 877; doi: 10.3390/nu18060877

Source: www.sci.news

Webb Space Telescope Uncovers Early Universe’s Slow-Rotating Galaxies

In the vastness of today’s universe, galaxies predominantly exhibit ordered rotation. However, among the largest star systems, those that do not form new stars are often influenced by chaotic stellar motion. Astronomers refer to these galaxies as slow-rotators. While fast-rotating systems are frequently observed, slow-rotators are believed to be rare, especially in the early universe. Recent findings from the NASA/ESA/CSA James Webb Space Telescope have illuminated a slowly rotating giant galaxy known as XMM-VID1-2075, located at redshift z = 3.449, which means we are observing a galaxy that is approximately 12 billion years old.



The Webb/NIRSpec/IFU image depicting the slowly rotating galaxy XMM-VID1-2075. Credit: Forest et al., doi: 10.1038/s41550-026-02855-0.

Current astronomical theories indicate that the first galaxies formed through the acquisition of angular momentum from inflowing gas, coupled with gravitational forces causing them to rotate.

Over billions of years, many galaxies—particularly those within clusters—undergo numerous mergers. These interactions lead to their combined rotations either enhancing or partially countering each other.

This phenomenon explains why some galaxies nearest to Earth display minimal overall rotation, yet contain considerable random stellar movement.

The discovery of XMM-VID1-2075 as a slow rotator is surprising, especially considering it reached this state when the universe was less than 2 billion years old.

“This invariant characteristic can typically only be observed in the most massive, mature galaxies closer to us in space and time,” stated Ben Forrest, an astronomer from the University of California, Davis.

“It was particularly striking that we found this galaxy exhibiting no indications of rotation, which raises intriguing questions.”

Ben Forrest and his team, part of the MAGAZ3NE (z>3 NEar-Infrared Giant Ancient Galaxies) survey, had previously conducted observations of XMM-VID1-2075 at the WM Keck Observatory in Hawaii.

“Earlier MAGAZ3NE observations confirmed that this galaxy ranks among the most massive in the early universe, possessing several times the number of stars as the Milky Way and not forming any new stars, making it an exceptional candidate for further study,” Dr. Forrest added.

Astronomers utilized the NASA/ESA/CSA James Webb Space Telescope to evaluate the relative motion of matter within XMM-VID1-2075, along with two other similarly aged galaxies.

“Conducting this type of analysis is standard for nearby galaxies due to their proximity and size, allowing for ground-based studies. Nevertheless, it’s challenging with high-redshift galaxies since they appear much smaller from our vantage point,” Dr. Forrest explained.

“The Webb Telescope is pioneering new research frontiers in this field.”

“Among the three galaxies we examined, one displayed clear rotation, one exhibited a somewhat chaotic pattern, while one showed no rotation but random stellar movement.”

“This pattern aligns with the characteristics of some of the most massive galaxies in our local universe, yet the early discovery of this slow rotator is quite unexpected.”

What led to the formation of this slow-rotating galaxy in under 2 billion years?

One hypothesis is that XMM-VID1-2075’s slow rotation may not stem from multiple mergers, but rather a singular collision between two galaxies rotating in nearly opposite directions, a notion supported by the team’s observations.

“In this galaxy, we observe a significant excess of light on one side,” Dr. Forrest noted.

“This suggests that an additional entity may be interacting with the system, potentially altering its dynamics.”

This groundbreaking research is detailed in the following paper published in Nature Astronomy.

_____

B. Forrest et al.. Discovery of a massive, slowly rotating galaxy from the early universe. Nat Astron, published online May 4, 2026. doi: 10.1038/s41550-026-02855-0

Source: www.sci.news

Discover a Hidden Frozen World with a Unique Atmosphere

Artistic Impression of 2002 XV93

Artist’s Impression: Trans-Neptunian Object (612533) 2002 XV93

Credit: National Astronomical Observatory of Japan / Ko Arimatsu

Recent research reveals that a small, icy celestial body located in the Kuiper Belt, comparable to Pluto, possesses an atmosphere.

This object, designated as (612533) 2002 XV93, marks its discovery nearly 25 years ago and has a diameter under 500 kilometers.

It is classified within the Plutino group, sharing a similar stable orbit with Pluto, completing three solar revolutions for every two of Neptune.

On January 10, 2024, (612533) 2002 XV93 caused an occultation, passing in front of a distant star. A team led by Wataru Arimatsu at Kyoto University monitored this event across three locations in Japan.

If there were no atmosphere, the star’s light would have blinked away almost instantaneously as it obscured 2002 XV93.

However, the researchers noticed that the star’s light gradually faded and returned within approximately 1.5 seconds at the shadow’s edge.

“This gradual change suggests that starlight is being refracted by a thin atmosphere enveloping 2002 XV93,” explains Arimatsu.

The team estimates a surface pressure of 100 to 200 nanobars—dramatically thinner than Earth’s atmosphere, approximately 5 to 10 million times less, and about 50 to 100 times thinner than Pluto’s atmosphere.

“I couldn’t breathe, feel the wind, or see anything reminiscent of Earth’s sky,” said Arimatsu. “Nonetheless, this thin atmosphere significantly bends starlight, indicating the presence of volatile gases around small icy bodies.”

While the exact composition of the atmosphere remains undetermined, Arimatsu speculates that methane, nitrogen, and carbon monoxide could be potential constituents, as these gases are highly volatile even under the frigid temperatures of the outer solar system.

Another question arises regarding the gas emissions from the interior of 2002 XV93, potentially suggesting volcanic activity or a result of cosmic collisions.

“This discovery reshapes our understanding of small celestial bodies in the outer solar system,” Arimatsu asserts. “Traditionally, detectable atmospheres were believed to be exclusive to planets, dwarf planets, and a select few large moons. 2002 XV93 stands as one of the smallest known celestial objects with a clearly detectable atmosphere.”

Astonished, Ben Montet from the University of New South Wales in Sydney remarked, “If one stood on this icy surface, they wouldn’t see a sky like ours. This challenges the belief that even the faintest atmosphere cannot exist on small celestial bodies.”

Explore the Mysteries of the Universe: Cheshire, England

Join a weekend adventure with some of science’s leading minds and delve into the enigmas of the universe, featuring a tour of the iconic Lovell Telescope.

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Source: www.newscientist.com

Backlash Grows Against NHS Plan to Conceal Source Code Amid AI Hacking Risks

NHS England software development

NHS England’s Commitment to Open Source Software

Mark Thomas/Shutterstock

NHS England’s recent move to withdraw open source code developed with taxpayer funds has led to significant backlash due to concerns over computer hacking by AI models.

Recent reports revealed that Mythos, an AI from Anthropic, can identify vulnerabilities in software, potentially enabling hackers to exploit systems using that software. Consequently, NHS England has mandated that all existing and future software must be restricted from public access by May 11 to mitigate these risks.

This shift contradicts NHS service standards, which advocate for software produced by staff to remain open source. This accessibility allows for the enhancement and utilization of tools without redundant efforts, a practice experts argue does not inherently bolster security.

In response, an open letter has amassed hundreds of signatures urging NHS England to reconsider its stance. At present, 682 signatories include writers and digital rights advocates. Notably, Cory Doctorow and former UK Health Secretary Matt Hancock have been approached for comments. Mr. Hancock labeled the initiative a “significant error” in a LinkedIn post, asserting that the decision undermines public investment.

“Opening source code has been one of the NHS’s most forward-thinking strategies. This work was funded by taxpayers; hence they should reap the rewards,” Mr. Hancock noted. “The empirical evidence also supports that open source code is subjected to more rigorous testing, is inherently more secure, and can be enhanced by talented individuals globally.”

Vlad Stefan Halbs, from the University of Edinburgh, co-signed the open letter. He has utilized Mythos to assess vulnerabilities within the NHS’s open source code, uncovering “multiple significant vulnerabilities” which were responsibly reported to the NHS before the project’s decommissioning.

“While we cannot confirm if our reported vulnerabilities triggered this course of action, they likely contributed,” Halbs remarked. “Routine security assessments and public disclosures, aided by large language models, can uncover similar vulnerabilities. Mythos merely streamlines the process. The fundamental issue, however, remains a severe underinvestment in cybersecurity, a problem that predates Mythos.”

Halbs speculates that backups of the NHS code will persist, potentially repurposed for training various AI models. Yet, he questions whether restricting access from GitHub will deter professionals dedicated to enhancing the quality and security of public services from contributing. “By closing access, we are alienating our supporters, not our adversaries,” Halbs concluded.

A report by the UK government-backed AI Security Institute (AISI) on Mythos indicated its limitations, revealing it could primarily target “small, poorly defended corporate systems,” and showing no evidence that genuinely secure networks were threatened.

Terrence Eden, a British civil servant with a history of advocating for public data access, criticized the decision as illogical.

“Trust in the NHS hinges on its openness, transparency, and honesty. Given our healthcare system’s reliance on digital technologies, open source is essential. It is our right to understand the operation of these tools. I urge the NHS to heed this petition and uphold its obligations to the community,” Eden stated.

The UK Department of Health and Human Services did not respond to inquiries. Meanwhile, a spokesperson for NHS England reiterated its stance: “To fortify our cybersecurity amid rapid AI model advancements, we are temporarily restricting access to certain NHS England source codes. Nonetheless, we will continue to publicly share source code whenever deemed essential.”

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Source: www.newscientist.com

Hantavirus Outbreak on Cruise Ship: Origins and Insights into the Deadly Virus

The cruise ship MV Hondius is anchored off the coast of Cape Verde.

AFP/Getty Images

An outbreak of hantavirus has been reported on the Dutch-flagged cruise ship MV Hondius, anchored off the coast of Cape Verde in the Atlantic Ocean. This virus can result in severe illness in humans, with a mortality rate of up to 50%.

So far, seven individuals have been infected, with three fatalities confirmed.

Understanding Hantavirus

Hantaviruses are a category of viruses carried by rodents known to cause severe illnesses in humans. Infection typically occurs through exposure to infected rodents or their urine, feces, or saliva.

Different hantaviruses cause various clinical syndromes across the globe. In the Americas, they can lead to a severe illness known as hantavirus cardiopulmonary syndrome (HCPS), which has a fatality rate of about 50%. In Europe and Asia, they primarily cause hemorrhagic fever with renal syndrome (HFRS), affecting kidneys and blood vessels.

It is estimated that there are 10,000 to over 100,000 hantavirus infections annually worldwide, with the highest rates in Asia and Europe.

The specific strain of hantavirus affecting those on board the ship remains unidentified. “There are multiple species, at least 24, that can be harmful to humans,” says Adam Taylor, a researcher at Lancaster University, UK. “Until we determine which strains are involved, we cannot fully understand the situation.”

Where Was the Ship Located?

The World Health Organization (WHO) has been notified of this outbreak. On May 2, a statement announced an outbreak of severe acute respiratory illness onboard the MV Hondius, including two fatalities and one critically ill passenger.

The cruise departed from Ushuaia, Argentina, on April 1, 2026, and traveled across the South Atlantic, with stops including Antarctica, South Georgia, Nightingale Island, Tristan da Cunha, St. Helena, and Ascension Island. WHO identified the Argentine port as a focal point for investigations into the outbreak due to the presence of the Andes virus, known for limited person-to-person transmission in South America.

A total of 147 individuals from 23 nationalities were onboard, consisting of 88 passengers and 59 crew members. The extent of contact with local wildlife during the voyage remains unclear, as per WHO’s statement.

What Are the Symptoms of Hantavirus?

Initial symptoms may include fever, muscle aches, headaches, and gastrointestinal issues. Some patients may develop respiratory complications. Diagnosis typically involves specialized blood tests.

How Does Hantavirus Spread?

The primary route of infection is contact with infected rodents, particularly through inhalation of virus particles from contaminated rodent droppings, urine, or saliva.

“For this reason, investigations often focus on potential exposure to rodent-contaminated areas,” stated Roger Hewson from the London School of Hygiene and Tropical Medicine. “Hantaviruses are not generally believed to be easily transmissible between humans.”

While rarer, infection may also occur through rodent bites. High-risk activities include cleaning poorly ventilated spaces, farming, and sleeping in rodent-infested environments. According to WHO, human-to-human transmission has only been recorded for the Andes virus in the Americas, occurring with close and prolonged contact, mainly among family and intimate partners, particularly during the early stages of the disease.

Current Outlook on the Infection Spread

According to Taylor, there is no need for panic. “Transmission of hantaviruses usually requires contact with animal products, not person-to-person contact,” he emphasized. “While precautions are in place on board, they are just that—precautions.”

Hewson added that it’s crucial not to make assumptions based on the cruise ship context. “Infection confirmation among passengers does not clarify whether the exposure occurred on the ship, prior to embarkation, during shore excursions, or through common environmental contact,” he remarked. “Therefore, public health surveillance, lab confirmations, and possible virus sequencing are vital.”

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Source: www.newscientist.com

Exploring the Medicinal Benefits of Honey: Does It Really Work?

Health benefits of honey

Health Benefits Vary Depending on Honey Type

Tihomir Likov/Shutterstock

As a passionate honey enthusiast, I relish the taste of honey in everything from buttery sourdough bread to refreshing smoothies and savory Asian stir-fries. I often justify my sweet indulgence by recalling its numerous health benefits. But how true are these claims?

Honey is widely recognized as a healthier alternative to refined white sugar. Its less processed nature results in a more stable blood sugar level. Honey, derived from plant nectar and enriched by bees, primarily consists of monosaccharides like glucose and fructose, along with trace sugars like trehalose, kojibiose, nigerose, melibiose, gentiobiose, and palatinose. However, the health benefits of honey largely depend on the sources of nectar collected by the bees.

One useful measure for comparing honey to other sugars is the glycemic index (GI), which indicates how quickly a food raises blood sugar levels. Refined white sugar has a GI score of approximately 65. In contrast, honey’s GI can vary significantly; for example, honey made from Sidr tree nectar in the Middle East boasts a GI of just 32, while Greek thyme honey reaches a GI of 85. Interested in comparing various honey types? Check out the University of Sydney’s extensive GI database for more information.

The variation in GI values can be attributed to the differing ratios of glucose and fructose in honey. Glucose raises blood sugar levels rapidly, whereas fructose does not. Unlike refined sugar, which contains a consistent ratio of glucose and fructose, honey’s composition can vary, impacting its glycemic response.

Additionally, honey contains components like phenolic acids and flavonoids that may slow glucose absorption in the intestines, thus contributing to lower GI values. These compounds are also believed to possess antioxidant properties that provide mild protection against ailments like cancer and heart disease—conditions often associated with oxidative stress. However, it’s essential to remember that fruits and vegetables are far superior sources of antioxidants as they are lower in sugar and calories.

Opting for raw honey, often available at local markets, is considered a healthier choice compared to mass-produced varieties, as it retains a higher concentration of beneficial phenolic acids and flavonoids. Raw honey is freshly harvested directly from the hive and minimally processed. Unlike raw milk, raw honey is generally safe to consume, although there are risks of contamination from Clostridium botulinum, a bacterium producing a potent neurotoxin. This toxin is particularly hazardous for infants under one year. Parents should avoid giving honey to infants, and it’s advisable to steer clear of Botox for little ones as well.

Mass-produced honey undergoes pasteurization to eliminate microorganisms, compromising some beneficial antioxidants in the process. Furthermore, cheaper honey products may be mixed with sugar syrup, which dilutes their natural properties. Some honey products even falsely claim to be natural aphrodisiacs, containing hidden drug ingredients like tadalafil, the active component in the erectile dysfunction medication Cialis.

A straightforward way to gauge the phenolic acids and flavonoids in honey is by examining its color. Darker honey typically indicates higher levels of these beneficial compounds. Personally, I enjoy purchasing rich, dark brown raw honey from a local beekeeper, which I find far superior in taste compared to supermarket varieties. His bees gather nectar from local eucalyptus trees, which likely contributes to its lower GI value based on tests conducted on other eucalyptus honeys.

Is Honey Effective for Hay Fever or Just a Myth?

Professional Studio Images/Getty Images

While many believe that consuming locally produced honey may relieve hay fever, this idea is rooted more in folklore than in scientific fact. The premise is that honey contains trace amounts of local pollen that might help the immune system acclimatize to these allergens. However, hay fever is primarily triggered by pollen from trees that bees do not visit; these trees release airborne pollen that can irritate your nasal passages. In fact, hay fever is caused by such wind-dispersed pollen.

Nonetheless, honey does demonstrate potential benefits in soothing symptoms like a sore throat and cough, likely due to its pleasant consistency and natural antibacterial properties. A review of existing studies found that honey could alleviate cough symptoms in children and was comparable in effectiveness to over-the-counter cough syrups. Anyone who has tried a warm lemon-ginger tea with honey can attest to its comforting effects when feeling unwell.

Honey’s efficacy extends beyond soothing sore throats; it also plays a significant role in wound care. Medical-grade Manuka honey, which is recognized in countries like the UK, US, and Australia, is often used in ointments and dressings. This honey is made from the nectar of Manuka tea tree flowers and is sterilized to eliminate harmful microorganisms. It possesses high levels of an antibacterial compound called methylglyoxal, which is effective in preventing or treating wound infections. Studies highlight its healing properties.

However, it’s crucial to heed warnings about honey derived from rhododendron flowers, especially from certain species native to Nepal and Turkey. This type of honey can cause “mad honey disease,” leading to symptoms such as confusion, dizziness, and vomiting. Historically, it has even been weaponized; for instance, Mithridates VI Eupator used it strategically against Roman troops in 65 BC, luring them into confusion. Do you dare to wonder what happened next?

While honey may not alleviate my hay fever, I still enjoy it—after all, there’s no sweeter delight than the joy it brings me.

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Source: www.newscientist.com

Understanding the Cosmic Inflation Problem and Its Breakthrough Solutions

Quantum Gravity After the Big Bang

Can Quantum Gravity Theory Explain the Moments After the Big Bang?

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Check out our latest insights in the Lost in Space and Time Newsletter. Sign up to uncover intriguing cosmological theories from around the globe!

Cosmic inflation remains a hotly debated topic in modern cosmology. It posits that during a minuscule fraction of the universe’s first second, the universe expanded exponentially—by a factor of about 1030. This rapid expansion resolved several cosmic mysteries; however, some aspects of inflation theory continue to raise eyebrows among researchers in the field.

On the positive side, inflation provides answers to pivotal questions about the universe’s vast structures, addressing concepts like galaxy formation—the so-called “tectonic problem.” Long before inflation, the universe was nearly uniform, only exhibiting slight quantum fluctuations. Inflation magnified these anomalies, allowing gravity to shape matter into galaxies and other astrophysical structures, making the complex cosmos we observe today.

Interestingly, inflation also resolves the “horizon problem,” explaining why regions of the universe separated by vast distances exhibit uniformity. In essence, inflation posits that all areas were once close enough to interact before being propelled outward. These two problems—structural anomalies and uniformity—are intrinsic to inflation, underscoring its significance in explaining the universe’s current state.

Critics, however, highlight that the theory leaves many questions unanswered. Initially, the universe requires very specific conditions to initiate inflation, a dilemma often referred to as the “fine-tuning problem.” The inability to explain these conditions might suggest an arbitrary alignment of parameters, which troubles many theorists.

Furthermore, devising a coherent mechanism for initiating and concluding inflation remains a significant challenge. Models abound, but tensions arise when juxtaposed against other cosmological mysteries.

The intersection of general relativity and quantum mechanics provides fertile ground for research into quantum gravity, aiming to integrate these competing theories in a explanatory framework. Infinitely growing complexities arise when considering how inflation fits within this larger theoretical landscape.

Addressing Inflation in Quantum Gravity

One proposed solution is the “loop quantum gravity” model, suggesting that the universe undergoes cyclic expansions and contractions—a “big bounce” scenario. Alternatively, “infinite inflation” theorizes a region where inflation continues indefinitely, albeit complicating hypotheses with an infinite multiverse where different regions form distinct universes, evading observational access.

As straightforward explanations falter, complex ideas like “hybrid inflation” emerge, which incorporate multiple fields of energy dynamics during inflation—a significant departure from simpler models. String theory adds nuance with “brane inflation,” where our universe lies on a membrane between dimensions, providing intriguing insights into unresolved inflation questions.

Another concept, “quantum secondary gravity,” examines modifications to gravity models at extreme energy densities, positing that quantum corrections might induce inflationary phenomena automatically as the universe expands. This model reconciles aspects of gravity with quantum mechanics, aligning with both established theories.

Exploring Quantum Second-Order Gravity as a Solution to Inflation

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The challenge with quantum secondary gravity is the impromptu prediction of “ghost particles,” which remain elusive in experimental findings. However, recent literature has reinterpreted these anomalies, suggesting that during the universe’s inflationary growth, gravity intensified to cause what scientists refer to as “ghost containment.”

This theory, despite remaining speculative, holds promise. Quantum second-order gravity could lead to detectable ripples in spacetime created in the early universe—albeit subtle gravitational waves that future detectors might capture.

The controversy surrounding inflation is likely to persist for years. Precise measurements required to validate this phenomenon are exceptionally demanding, particularly concerning detection of gravitational waves and observations of the cosmic microwave background (CMB). Existing misinterpretations of the CMB—including previously classified findings of gravitational waves—underscore the need for cautious interpretation. The early moments of the universe possess the potential to redefine our understanding of physics, merging two foundational theories into a cohesive understanding of the cosmos.

Topics:

  • Cosmology/
  • Quantum Gravity

Source: www.newscientist.com

Rare Case: Woman’s Cancer Goes into Remission Without Treatment

X-ray of a woman’s arm before biopsy: Arrow highlights the tumor

Gannon MC, Gabor RM, Gupta A, et al. (April 15, 2026)

A remarkable case involves a woman whose cancerous tumor on her arm is now in remission, attributed to a biopsy that triggered a powerful immune response. This unique scenario exemplifies how a biopsy can potentially change the fate of some cancer patients.

She is one of only nine known cases where a biopsy uncovered this specific type of cancer affecting connective tissue, which spontaneously resolved within weeks.

“It’s quite extraordinary,” says Toby Lawrence from the Marseille Lumigny Immunology Center, not directly involved in this case. “This suggests there was an immune activation in response to the biopsy injury, rapidly halting tumor growth.”

The 59-year-old woman noticed a rapidly enlarging lump, which reached two centimeters, before seeking medical attention. “The symptoms were escalating quickly and causing discomfort. She was understandably concerned,” states Rohit Sharma from Marshfield Clinic Health System in Wisconsin.

Sharma and his team marked the tumor’s location with tattoo ink and performed a thin-needle biopsy. They identified the growth as a myxofibrosarcoma, which contained highly malignant cells, posing a risk of metastasis. “Cancer often leads to fatal metastasis,” Sharma warns.

Two weeks later, the woman returned for tumor removal surgery, but astonishingly, the tumor had completely vanished. “She reported symptom relief within just three to four days post-biopsy,” says Sharma.

To confirm the disappearance of the tumor, the surgical team removed surrounding tissue, which showed no cancer cells. “The timing indicates that an immune response was activated,” Sharma explains. The phenomenon of cancer disappearing post-biopsy is extremely rare, typically observed in cancers that the immune system can easily identify, such as skin cancers.

A biopsy can destroy some cancer cells and release inflammatory signals that activate immune cells, like natural killer cells, which can eliminate damaged tumor tissue within days. This could trigger an even stronger immune response as T cells identify and attack remaining cancerous cells.

However, such an extraordinary immune reaction does not occur for most individuals. Factors like genetics and environmental triggers likely play a role in this rare phenomenon, according to Lawrence.

Magnetic Resonance Imaging Scan of the Tumor

Gannon MC, Gabor RM, Gupta A, et al. (April 15, 2026)

By analyzing the genomes and medical histories of these exceptional cases, researchers aim to uncover strategies that could enhance overall cancer treatment efficacy. Understanding the unique immune responses in mice with cancer resulting from minor tissue damage may hold the key to unraveling these mechanisms, suggests Caetano Reis e Souza at the Francis Crick Institute in London. “If we can learn how biopsies expose cancer cells to the immune system, it might pave the way for novel therapeutic drugs,” he posits.

Sharma’s research team is planning to explore this phenomenon further in the upcoming years by establishing a database of similar unique cancer cases.

Topics:

Source: www.newscientist.com

Accidental Heat Therapy Saves Man Predicted to Develop Alzheimer’s Disease

Doug Whitney (left, pictured with his son Brian in November 2022) is genetically predisposed to developing Alzheimer’s disease, but has so far avoided the condition.

Shelby Lum/Associated Press/Alamy

An American man, Doug Whitney, whose genetics indicated a high likelihood of developing early-onset Alzheimer’s disease, has surprisingly managed to evade its effects. This remarkable outcome may be linked to unintentional heat exposure he experienced while working in a ship’s engine room, aligning with emerging evidence that suggests heat therapy could play a role in preventing symptoms of Alzheimer’s.

Whitney’s family carries the Presenilin 2 genetic variant, a mutation traced back to a small village in Volga, Germany, during the 18th century. Individuals with this mutation are typically predisposed to Alzheimer’s in their late 40s or early 50s.

“My family has been devastated by this disease,” Whitney remarked in a press statement. “My mother had 13 siblings, and 10 of them died before the age of 60. It was an epidemic.”

Despite sharing the same mutation, Whitney has reached his late 70s without experiencing significant memory loss or other Alzheimer’s symptoms, making him the only known mutation carrier to avoid the condition long after it was expected to manifest.

Dr. Jeffrey Kane from the French National Center for Scientific Research, became intrigued by Whitney’s case after discussing it with Dr. Randall Bateman, who has been studying Whitney for years.

At a conference, Kane presented research on the supportive effects of hyperthermia on mouse brains. A Finnish study found that frequent sauna users are 65% less likely to develop Alzheimer’s. Kane and colleague Emmanuel Planel from Université Laval in Quebec initiated a study to explore the underlying mechanisms.

The findings were compelling since Bateman knew of Whitney’s two-decade-long work in the extremely hot engine rooms of steam-powered naval vessels starting at age 18. Bateman discussed these circumstances with Kane and Planel, leading them to investigate further.

Engine room temperatures could soar up to 50°C (122°F), where Whitney would remain for extended periods, often needing to be hosed down to prevent overheating.

This prolonged heat exposure may have led to elevated levels of heat shock proteins in Whitney’s cerebrospinal fluid. These proteins are produced in response to heat and facilitate the repair and refolding of other proteins damaged by increased temperatures.

These heightened levels of heat shock proteins may have helped regulate tau, a crucial brain protein involved in Alzheimer’s disease. In affected individuals, tau misfolds and aggregates, which correlates with cognitive decline. Brain imaging studies reveal that Whitney’s brain holds negligible amounts of abnormal tau, likely explaining his absence of symptoms. Although his brain contains misfolded amyloid proteins associated with Alzheimer’s, symptoms remain unpredictable as evidenced in studies.

Whitney prepares for a PET scan in March 2025 as part of an Alzheimer’s Research Program at Washington University in St. Louis, Missouri.

M. Scott Brauer 2025/ Redux/eyevine

Support for their hypothesis emerged when Kane and Planel discovered that exposing mice to heat helped maintain the tau protein structure and facilitated increased clearance from the brain. Moreover, tau clearance was found to be more efficient in awake older adults compared to when they sleep, likely due to the natural elevation of body temperature during wakefulness.

Dr. Rebecca Nisbet from Australia’s Florey Brain Research Center notes that Whitney’s occupational heat exposure may elucidate his resistance to Alzheimer’s, yet genetic factors likely contribute as well. Whitney may carry a specific protective gene absent in affected family members, highlighting the complexity surrounding Alzheimer’s disease.

Nisbet has personally begun using saunas, inspired by this new evidence of their cognitive benefits. “I believe this is a harmless activity that can mitigate dementia risk,” she asserts.

Interestingly, regions with the lowest rates of cognitive impairment and Alzheimer’s in individuals over 60 tend to be located in very hot climates, such as Ballabgarh, India and the Bolivian Amazon. “While high temperatures alone can’t explain everything, they may be a significant contributing factor,” reflects Canet.

On the contrary, cold exposure could heighten Alzheimer’s risk. For instance, tau exhibits dysregulation in bears during hibernation, according to Nisbet. “The tau in a hibernating bear appears abnormal, yet normalizes promptly upon waking and warming up,” she explains.

Research has shown that general anesthesia, which lowers body temperature, can contribute to short-term cognitive issues reminiscent of Alzheimer’s disease, potentially due to its effects on tau. “Caution is advised in mouse studies, as prolonged anesthesia can lead to tau dysregulation,” warns Nisbet.

Topics:

  • Alzheimer’s Disease/
  • Heat Therapy
  • Genetics

Source: www.newscientist.com

Quantum Computer Successfully Simulates the Largest Molecule Ever Created

IBM Quantum Computer at Cleveland Clinic

Kincaid/IBM

Exploring the vast potential of quantum computing, one of the most exciting areas of research is simulating proteins to facilitate new drug discovery. Currently, quantum devices are hampered by errors, making them less suitable for this purpose. However, a groundbreaking collaboration involving supercomputers and two quantum systems has set a new record by accurately simulating a molecule containing 12,635 atoms.

Determining the quantum state and energy levels of drug molecules is essential for understanding how they behave, a task often only achievable through approximate methods on traditional computers. A team of researchers from Cleveland Clinic, IBM, and Japan’s Institute of Science and Technology focused on developing quantum computers that inherently utilize quantum physics principles. They innovated a hybrid model combining quantum and classical supercomputing for unprecedented simulations of large molecular structures.

“This was my dream, and here we are,” says Kenneth Mertz from Cleveland Clinic. In this study, the researchers utilized two IBM Heron quantum computers located at RIKEN and Cleveland Clinic, alongside the world’s most powerful supercomputers, Fugaku and Miyabi-G. Their approach focused on simulating a protein-ligand complex, a well-studied example pivotal for biomedical research, while also examining the molecules in a water layer that reflects laboratory conditions.


Currently, the limited size and inherent error rates of quantum computers restrict their utility. Thus, the research team divided the molecular simulation tasks among four machines. The quantum computer was tasked with calculating specific properties, and the results were transferred back and forth with the supercomputer over 100 hours. Despite the lengthy process, the team believes it was faster than traditional methodologies. Jerry Chow at IBM noted that the simulation accurately estimated the lowest energy state of the molecule, matching the precision of conventional methods, though it hasn’t yet proven markedly superior.

According to Liu Junyu from the University of Pittsburgh, this research signifies a crucial milestone towards achieving practical applications of quantum computing with real-world hardware. He expressed admiration for the scale of the experiment. Even prior to achieving error-free quantum computing, there is a necessity to explore hybrid methods further to enhance the usefulness of quantum systems.

Chow added that while their findings indicate that quantum hardware might excel in certain calculations, this simulation record is a preliminary achievement. “There is a growing push to explore the limits of what can be achieved,” Chow acknowledged. “It’s just the beginning of an exciting journey.”

Topic:

Source: www.newscientist.com

Ancient Sauropod Dinosaur Fossil Discovered in China: Insights into Prehistoric Giants

A newly discovered genus and species of Masopodan sauropodomorph, named Kounryu Hōmei, has been identified from a partial skeleton found in southwestern China, dating back to the early Jurassic period. This remarkable dinosaur represents a crucial link between early herbivores and the massive four-legged sauropods that would later dominate the Mesozoic Era.



Artist’s impression of Kounryu Hōmei. Image credit: Connor Ashbridge / CC BY 4.0.

Kounryu Hōmei inhabited what is now China approximately 190 million years ago during the early Jurassic period.

Fossil evidence suggests that this dinosaur measured about 9 to 10 meters (30 to 33 feet) in length, making it one of the largest known early-branching sauropods unearthed in China.

This species belongs to the Masopodan group, which existed from the Late Triassic to the Late Cretaceous.

“The Early Jurassic was a key era in dinosaur evolution, marking the diversification and emergence of sauropod dominance in terrestrial ecosystems,” stated Dr. Ya-Ming Wang from the China Museum of Geology and colleagues.

“Within this group, non-sauropod Masopoda sauropods played a significant role in the evolutionary trajectory leading to the distinctive large body shapes associated with sauropods.”

“Therefore, understanding the anatomy, diversity, and paleobiogeography of these early-diverging sauropods is essential for unraveling the origins of one of the most successful dinosaur clades, the sauropods.”

The partial skeleton of Kounryu Hōmei was discovered in the Fengjiahe Formation located in Luming Town, Yunnan Province, China.

The specimen consists of the neck, back, tail vertebrae, and part of the hip joint.

Analysis of these fossils revealed an unusual combination of traits, indicating an alternative evolutionary path. Notably, it had a strong, elongated tail rather than the long neck typically associated with large dinosaurs.

Despite its relatively short neck for its body size, the tail may have played a balancing role, enabling this dinosaur to stand on its hind legs and feed.

Through phylogenetic analysis, researchers found that Kounryu Hōmei occupies a pivotal evolutionary position between early sauropods and more advanced forms closer to true sauropods.

“The discovery of this new specimen greatly enriches the known Early Jurassic dinosaur fauna of southwestern China,” the authors remarked.

“This provides essential new anatomical features that enhance our understanding of morphological differences and evolutionary patterns among early-diverging sauropods.”

The findings were published in the Royal Society Open Science on March 25th.

_____

Hu Shaobin et al. 2026. A neosauropod dinosaur discovered from the Lower Jurassic Fengjiahe Formation in Dali, Yunnan Province, China. R Soc Open Science 13 (3): 252219; doi: 10.1098/rsos.252219

Source: www.sci.news

Exploring the Thin Atmosphere of Pluto’s Small, Frozen World

A team of Japanese astronomers has discovered a thin atmosphere surrounding the trans-Neptunian object (612533) 2002 XV93, which has an approximate diameter of 500 km. This celestial body is too small and cold to retain a substantial atmosphere.



Artist’s conception of trans-Neptunian object 2002 XV93. Image by: National Astronomical Observatory of Japan

“The cold regions of the outer solar system host thousands of small bodies known as trans-Neptunian objects (TNOs) because they orbit outside Neptune.” according to Dr. Ko Arimatsu from Ishigakijima Observatory.

“While Pluto, the most well-known TNO, has been observed with a thin atmosphere, studies of other TNOs generally yield negative results.”

“Most TNOs are extremely cold and possess weak surface gravity, making it unlikely for them to maintain an atmosphere.”

Astronomers utilized stellar occultation to study trans-Neptunian object 2002 XV93, measuring its light fluctuations as background stars passed behind it.

“With a diameter of around 500 km, 2002 XV93 is significantly smaller than Pluto, which has a diameter of 2,377 km,” they noted.

“On January 10, 2024, 2002 XV93’s orbit caused it to briefly obscure a background star.”

“As the star gradually dimmed while being obscured by 2002 XV93, it indicated the possibility of light attenuation due to the thin atmosphere, or a sudden disappearance as it moved behind the solid surface of the TNO.”

The researchers concluded that the observed behavior best supports the existence of a thin atmosphere around 2002 XV93.

They estimate that this atmosphere could vanish in approximately 1,000 years unless it is replenished in some manner.

This suggests that the atmosphere must have formed or been replenished relatively recently.

“Observations with the NASA/ESA/CSA James Webb Space Telescope reveal no indications of frozen gas that could sublimate to create an atmosphere on 2002 XV93,” the authors stated.

“One hypothesis is that deep internal processes brought frozen or liquid gas to the surface of the TNO.”

“Alternatively, a comet may have collided with 2002 XV93, releasing gas and forming a temporary atmosphere.”

“Further investigations are essential to clarify these possibilities.”

“This finding sheds light on the potential for even smaller TNOs to temporarily harbor atmospheres, challenging conventional volatile retention models,” the researchers concluded.

“Our results imply that some distant icy bodies could be sustained by ongoing cryovolcanism or exhibit atmospheres formed by recent impacts from small icy objects.”

The team’s research paper was published in the journal Nature Astronomy.

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Kazuya Arimatsu et al.. Discovery of the atmosphere surrounding a trans-Neptunian object beyond Pluto. Nat Astron, published online on May 4, 2026. doi: 10.1038/s41550-026-02846-1

Source: www.sci.news

Unveiling the Deep Sea’s Rarest Creature: A Closer Look at This Stunning Discovery

Among the fascinating and peculiar animals residing in the deep sea, perhaps the most captivating are those elusive creatures that occasionally grace deep-water cameras, only to vanish into the abyss before scientists can investigate further.

Many of these enigmatic animals have yet to be classified by researchers, including a peculiar squid that features elbows, large undulating fins, and long, spaghetti-like tentacles.

Squid specialists have analyzed available footage and largely theorize that these specimens belong to the bluefin squid family, specifically the Magnapinidae. This family was initially identified in 1998 from a handful of rare squid larvae.










No adult bluefin squid have ever been captured with a net; they have only been documented through photography.

While adult squid resemble their larvae counterpart, definitive relationships remain uncertain until a specimen is brought to the surface.

Nevertheless, deep-sea scientists continue to speculate about the lives of these mysterious squids. The characteristic “elbow stance” (illustrated below) is commonly employed by bluefin squid to capture prey.

When hunting, they extend their arms and tentacles away from their bodies, spreading them out like spider legs and bending them at 90 degrees. Meanwhile, the remaining tentacles trail through the water, likely creating a wide net to passively ensnare prey.

In 2024, a bluefin squid was observed traversing the ocean floor on its tentacles in the southwestern Pacific Ocean, possibly in search of food. At one point, the squid’s sticky tentacles seemed to get caught on something out of the camera’s frame. It amusingly tugged at the obstruction for several seconds until it freed itself and swam off.

This squid was documented at approximately 3,300 meters (10,830 feet) deep. Another specimen was recorded nearly double that depth, at 6,212 meters (20,380 feet) in the Philippine Trench, marking it as the deepest squid ever noted.

Caught only on camera, no adult bluefin squid has ever been captured with a net. – Image credit: Christa Rabenold

Its relative, the dumbo octopus, which swims using fins resembling giant elephant ears, dives even deeper, having been spotted near 7,000 meters (23,000 feet).

Bluefin squid have been photographed in various locations worldwide, including Brazil, West Africa, the Gulf of Mexico, and the Indian Ocean. This wide distribution suggests that this family may consist of multiple species.

In 2015 and 2017, research in the Great Australian Bight involved towing a camera through deep waters ranging from 900 to 3,000 meters (approximately 2,950 to 9,840 feet). During this study, the bluefin squid was captured on camera five times, marking the first sighting in Australian waters.

These squids exhibit impressive features when they showcase their tentacles, often much longer than their bodies; however, they are relatively small. The squid photographed in Australia measured between 6 to 15 centimeters (about 2 to 6 inches) long, with tentacles extending up to 1.5 meters (almost 5 feet).

Yet, the possibility remains that larger bluefin squids are still lurking, hidden in the vast ocean depths just out of view.


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Discovery of Dozens of Potential ‘Tatooine’ Exoplanets by Astronomers

In the past 15 years, the discovery of circumbinary planets—exoplanets orbiting binary stars—has been firmly established. Thanks to observations from NASA’s Kepler Space Telescope and the Transiting Exoplanet Survey Satellite (TESS), a total of 14 such planets have been identified using the transit method. Recently, innovative techniques applied to TESS data have unveiled 27 new orbiting star candidates, indicating that these unique planetary systems may be more prevalent than previously thought.

Artist’s impression of an orbiting exoplanet and its two parent stars. Image credit: Sci.News.

The newly identified planet candidates range from sizes comparable to Neptune to those with masses up to 10 times that of Jupiter.

The closest candidate is located approximately 650 light-years away from Earth, while the farthest is about 18,000 light-years distant.

“Candidates are distributed across both the southern and northern skies,” said study co-author Ben Montet, an astronomer at the University of New South Wales. “This means that if you have a telescope, at least one of these systems will be observable regardless of the time of year.”

“We discovered 27 planet candidates out of 1,590 binary systems, which signifies nearly 2% of these binary systems have the potential for hosting planets.”

“This could translate into thousands, or even tens of thousands, of planets waiting to be uncovered through data from the new 10-year sky survey conducted by the Vera C. Rubin Observatory, known as the Space-Time Heritage Survey.”

“This represents a thrilling first step, revealing the significant work that lies ahead in the coming years.”

The team’s novel planet-detection technique, referred to as posterior body precession, has been used in the past to characterize binary stars but was previously unutilized for large-scale exoplanet searches.

This method involves monitoring the long-term changes in the orbits of visible binary stars due to stellar eclipses. Variations in the timing of these eclipses—unexplainable by general relativity or stellar interactions—suggest a third object, possibly a planet, may be influencing the star’s orbit.

“A significant portion of our current understanding of planets is based on biased detection methods,” states lead author Dr. Margo Thornton, a candidate at the University of New South Wales. “We’ve primarily identified those that are the simplest to detect.”

“This innovative method has the potential to reveal a multitude of hidden planets, particularly those that are not perfectly aligned to our line of sight.”

“It may help illuminate the true distribution of planets in our universe,” added Dr. Montet. “We are enthusiastic about the number of planets we could uncover using this approach.”

“Our preliminary research suggested that we would find 27 candidates at this stage, but we are thrilled to have achieved that.”

“We’re now embarking on an exciting project to validate which of these planets are indeed real.”

The team’s findings will be published in Royal Astronomical Society Monthly Notices.

_____

Margo Thornton et al. 2026. 27 circumbinary planet candidates detected through posterior body precession of eclipsing binaries observed by TESS. MNRAS 548 (3): stag515; doi: 10.1093/mnras/stag515

Source: www.sci.news