From 1950 to 2020, intense heatwaves led to a 25-38% decrease in bird populations inhabiting these biodiverse tropical regions, as reported by Maximilian Cotts and his team from Barcelona’s Super Computing Center.
The researchers have yet to utilize these findings to forecast future bird population trends as global temperatures continue to rise, but early indicators are concerning. “The situation looks grim,” Cotts remarks.
He and his team have initiated a comprehensive analysis of global bird populations using the Living Planet Database. This dataset, however, does not include seabirds. Additional data on habitat destruction was sourced from the Hyde database for global environments, along with historical weather and climate data from the European Centre for Medium-Range Weather Forecasts.
The researchers compared this information to identify correlations that could shed light on the observed changes in bird populations. Their findings suggest that habitat loss is a significant driver of decline, corroborating earlier studies, particularly in regions with latitudes between 21° and 43° north or south.
In contrast, extreme heat is the predominant factor affecting bird survival in tropical areas, where many species often exist at the edge of their heat tolerance limits. If these limits are exceeded, they risk mortality , explains Kotz. Even if they manage to survive an intense heat episode, their health is typically compromised, diminishing their reproductive success.
The team is also analyzing how the exacerbation of extreme heat is attributable to anthropogenic climate change, and how bird populations would behave in a scenario without warming. This approach enables researchers to gauge the impact of climate change on bird abundance.
Although such attribution studies have been traditionally employed to assess extreme weather events related to climate change, Kotz notes that this is the first instance of applying this methodology to evaluate ecological repercussions.
There remains a significant lack of data regarding bird population trends, particularly in tropical regions. Kotz acknowledges this deficiency but believes there is enough evidence to draw meaningful conclusions. He cautions that insufficient data in these areas may lead to an underestimation of the impacts.
Insects and Ecosystem Expedition Safari: Sri Lanka
A unique journey into Sri Lanka’s diverse ecosystems, focusing on entomology and rich biodiversity.
Nickel West, Australia, is among various mines that can use microwaves for CO2 storage in waste.
BHP
Mining produces billions of tons of waste rock annually. By reacting these unused rock piles with carbon dioxide, we can potentially eliminate considerable amounts of greenhouse gases from the atmosphere. The current technique, however, involves burning fossil fuels to heat rocks to high temperatures. Our findings suggest that activating carbon removal could allow these rocks to require less energy when reacting with CO2.
“It’s akin to microwave popcorn,” says Shawn Laurie, a technology developer at Arca, Canada. Instead of heating the entire rock, microwaves target specific molecules. This mechanism differs from how kitchen microwaves pop corn by heating water within the kernel.
Rocks serve to absorb CO2 from the atmosphere, mitigating emissions from fossil fuel combustion. Some projects enhance rock weathering by spreading crushed volcanic rocks on farms, which mineralize CO2 as they dissolve. Others inject CO2 into similar underground rocks. Numerous companies, including ARCA, are focused on utilizing mine tailings from extracting metals like nickel and chromium.
These metals frequently arise from ores rich in magnesium-bearing serpentine, which reacts with CO2. According to an analysis by ARCA, approximately 28 billion tons of such tailings exist globally, with 3 billion tons produced each year. They estimate that current tailings can store up to 8.7 billion tons of CO2, roughly equivalent to two years’ worth of U.S. emissions.
However, serpentine does not react quickly under normal surface pressures and temperatures. Heating rocks to elevated temperatures significantly enhances their reactivity and accelerates CO2 mineralization. Yet, this process usually necessitates the burning of fossil fuels to generate heat.
Utilizing microwaves to heat the rocks brings various advantages, asserts Peter Schuman from Arca. Instead of burning fuel for heat, this method relies on clean electricity, using less energy than conventional heating. Additionally, the treatment time for rocks is significantly shorter. This potentially enables mining companies to incorporate microwave processes into tailing treatments or even utilize them as standalone systems, he notes.
An application for a patent from the company reveals that Schuman and his Arca colleagues have successfully treated serpentine with microwaves for several minutes, enhancing their reactivity to CO2, inducing chemical changes, and consuming less energy than traditional heat treatment.
“By energizing the rock, you break the bonds within that structure and release magnesium,” states Scheuermann, which then reacts with CO2. Treated serpentine has been shown to react with significantly higher amounts of CO2 than untreated rocks, mineralizing the gas at an accelerated rate.
“The improvements they demonstrate are quite remarkable,” comments Raphael Santos, who reviewed the patent application at the University of Guelph, Canada. However, he notes that it’s challenging to ascertain from the documentation alone the exact quantity of serpentine treated by microwaves and how these results might translate to practical scenarios.
Scheuermann has not specified the exact amounts expected from microwave treatment in terms of CO2 capture in serpentine but mentions, “It’s a tremendous increase—by several orders of magnitude in both reaction rate and capacity.”
Currently, the company is only testing its approach in the lab and has yet to sell any of its 700 tons of CO2 removal. However, Scheuermann indicates that the scaled-up process would include supplying rocks through a chute or conveyor belt. Additionally, they have developed an autonomous rover designed to mix the tailings for optimal air exposure. Once the reaction concludes, a fresh layer of tailings is applied.
“This preprocessing using microwaves significantly enhances the likelihood of CO2 storage,” states Quin Miller from the Pacific Northwest Research Institute in Washington. “It’s promising,” he adds, noting that the treatment process also aids in extracting nickel, an essential metal for battery production, from the rocks.
While many anticipate retirement, staying active in the workforce during later years can enhance your happiness—particularly for men.
Increasing numbers of people are extending their careers. According to a report from the Organization for Economic Cooperation and Development (OECD), 28.9% of individuals aged 65 to 69 across 38 member countries were still employed in 2023, up from 15.9% in 2000. However, the overall effects on well-being remain largely unexplored.
To delve into this topic, Alisa Lewin from Haifa University and Haya Stear from Tel Aviv University analyzed social survey data from Israel’s Central Bureau of Statistics. They compared the experiences of over 3,300 women and more than 2,000 men who reached 62 and 67 years of age, respectively.
The researchers found that individuals with lower household incomes were more inclined to work full-time. Notably, the men reported financial, family, emotional, and overall life satisfaction levels that were equal to or exceeded those who were not employed.
This trend held true regardless of the nature of their full-time employment. Meanwhile, women showed an increase in family and economic satisfaction.
“Men, even today, still recognize their responsibilities in providing for their families and achieving workplace success,” notes Carrie Cooper from the University of Manchester, UK.
Results concerning the happiness of participants working part-time were more variable. Outcomes differed based on job type, satisfaction metrics, and participant gender.
Those who began with higher happiness levels tended to work full-time later in life, which could have influenced the findings. Cooper cautions that the results may not be applicable to other cultures or countries.
Dennis “Tink” Bell (far right) during a Christmas celebration at Admiralty Bay Station in 1958
D. Bell; Archive REF: AD6/19/X/20/18
The remains of a meteorologist who perished on an Antarctic glacier 66 years ago have been unearthed and returned to England.
At just 25, Dennis “Tink” Bell embarked on a two-year mission to Antarctica in July 1959 to study the climate of the Falkland Islands, which was the predecessor of the British Antarctic Survey (BAS).
Bell encountered a crevasse but managed to call out for assistance. He secured a rope to his belt and was pulled to safety, although the belt broke, causing him to fall again. This time, he did not call out for help.
His colleague made it back to base, but worsening weather conditions jeopardized further rescue efforts.
Ieuan Hopkins noted that working in Antarctica during the 1950s and 1960s was perilous, and fatalities were tragically common. Many bodies of other BAS staff remain lost today.
“There was an average 1% chance that you wouldn’t return,” remarks Hopkins. “It’s an extremely hostile environment. We’re at risk of losing people.”
Earlier this year, a team from the Arkdowsky Poland Antarctic Station on King George Island discovered numerous bone fragments on the glacier’s surface, having been exposed as they shifted over time.
“It’s a large, dynamic glacier, so things are perpetually moving,” explains Hopkins. “The presence of bone fragments suggests significant forces at play.”
The remains were transferred to the Falkland Islands and subsequently returned to Britain by the Royal Air Force aboard an Antarctic research vessel alongside Sir David Attenborough.
Denise Syndercombe Court at King’s College, London, identified the body through DNA comparisons with samples from his older brother David Bell and younger sister Valerie Kelly, as Bell commented in a statement.
The Polish team also uncovered many personal belongings believed to belong to Bell, including radio equipment, flashlights, ski poles, engraved wristwatches, knives, and pipe stems made of ebonite.
Ibogain, a psychedelic substance, is derived from the roots of the Iboga plant
Farmer Dods / Alamy
The psychedelic substance ibogaine has been shown to slow brain wave activity in individuals with traumatic brain injuries, potentially accounting for its effectiveness in treating symptoms of post-traumatic stress disorder (PTSD).
A study conducted last year revealed that ibogaine, sourced from the African Iboga plant, significantly enhanced the overall mental and physical well-being of military veterans suffering from traumatic brain injuries. Yet, the precise mechanisms behind these effects were previously unknown.
To investigate further, Jennifer Lismore from Stanford University and her team examined brain imaging of 30 individuals involved in the initial study. During a 5-day treatment session at a facility in Mexico, participants received a dosage of 12 milligrams of ibogaine per kilogram of body weight and participated in supportive activities like yoga, meditation, and therapy.
As part of the study, the researchers collected EEG data that recorded participants’ brain electrical activity. These scans were taken 2-3 days prior to and 3.5 days following the ibogaine treatment.
By comparing the EEG findings, Lismore and her team observed an overall deceleration in brain wave activity post-treatment, particularly in the gamma waves—the fastest brain waves—which exhibited nearly a 16% reduction in strength in the occipital region after ibogaine therapy. While gamma wave intensity saw a slight rebound after one month, levels remained significantly below those recorded prior to treatment.
Additionally, the intensity of slow theta waves rose by approximately 17% in the back of the brain and 13% at the front 3.5 days post-treatment. However, this increase lost its significance after one month.
Lismore suggests that the observed reduction in brain wave activity may clarify why ibogaine is effective for alleviating PTSD symptoms in many patients. “The deceleration of brain function has allowed patients, particularly those experiencing hyperawareness and sensitivity associated with PTSD, to find relief,” she noted. “One way to understand this slowing process is as a mitigation of the heightened distress often seen in PTSD cases.”
The temporary spike in slow theta waves could also indicate that ibogaine promotes neuroplasticity—the brain’s ability to adapt and rewire itself. Previous studies in animals have associated theta wave activity with brain adaptability, Lismore explains. By inducing a short-term increase in theta wave presence, ibogaine may create conditions conducive to improving mental health.
“Ibogaine essentially addresses the chaotic, restless nature of the brain, facilitating a sort of normalization,” remarked Conor Murray from the University of California, Los Angeles. “Ultimately, it instills a sense of security for participants, reassuring the brain.”
However, he cautions that these findings don’t fully reveal the mechanisms through which ibogaine effects these brain changes.
Another challenge is the absence of control measures, complicating the assessment of the influence from other treatment components, points out Lismore. Nonetheless, she asserts that these insights represent “a significant first step toward understanding why this treatment is so impactful.”
Recent studies have indicated significant enhancements in daytime alertness, overall sleep quality, and reductions in apnea paralysis index, suggesting that respiratory muscle training using blown shanks (conch) could become a novel approach for alleviating obstructive sleep apnea symptoms in the future.
Upper airway muscle training through shank blowing enhances subjective assessments of daytime drowsiness and sleep quality by improving objective indicators of obstructive sleep apnea severity. Image credit: Sharma et al., doi: 10.1183/23120541.00258-2025.
Obstructive sleep apnea (OSA) is a prevalent sleep disorder characterized by repeated breathing interruptions during sleep due to airway obstructions.
This condition leads to excessive snoring, disrupted sleep patterns, and daytime fatigue, while also heightening the chances of hypertension, cardiovascular issues, and strokes.
Blowing the shell of a conch or shank has been an integral part of Indian culture for centuries.
Recent research revealed that individuals with moderate OSA who engaged in shank blowing experienced improved sleep quality, greater daytime alertness, and fewer nighttime breathing disturbances.
Dr. Krishna Sharma, a researcher at the Eternal Heart Care Center and Research Institute in Jaipur, stated:
“The standard treatment for OSA involves a continuous airway pressure machine (CPAP), which keeps the airways open by delivering airflow through a face mask throughout the night.”
“While effective, many patients find it uncomfortable and struggle to adhere to its use.”
“In my clinical practice, several patients reported feeling more refreshed and experiencing fewer symptoms after regularly practicing shank blowing, a traditional yoga breathing technique that involves expelling air through the conch shell.”
“These insights prompted us to design scientific research to rigorously evaluate whether this ancient technique serves as a substantial treatment for those suffering from OSA.”
The study included 30 participants aged 19-65 diagnosed with moderate OSA, who were evaluated at the Eternal Heart Care Center and labs between May 2022 and January 2024.
Polysonography was utilized for assessment, where participants were monitored during sleep and questioned about their sleep quality and daytime alertness.
They were randomly assigned to either practice blowing conch shells (16 patients) or engage in deep breathing exercises (14 patients).
Participants were provided with traditional shanks used in yoga and received in-person training from the research team before commencing home practice.
They were encouraged to practice at home for at least 15 minutes, five days a week. After six months, participants were re-evaluated.
Those practicing shank blowing exhibited a 34% reduction in daytime sleepiness compared to those doing deep breathing exercises.
Additionally, they recorded higher blood oxygen levels during sleep.
“The technique of blowing the shank is distinct,” Dr. Sharma explained.
“It incorporates deep inhalation followed by a powerful, sustained exhalation through tightly pursed lips.”
“This method generates strong vibrations and airflow resistance, which can fortify the upper airway muscles, such as the throat and soft palate.
“The unique spiral design of the shanks may also create acoustic and mechanical effects that assist in stimulating and regulating these muscles.”
“For individuals living with OSA, particularly those who find CPAP uncomfortable, costly, or inaccessible, our findings present a promising alternative.”
“Shank blowing is a simple, low-cost breathing technique that can enhance sleep and mitigate symptoms without reliance on machines or medicine.”
Krishna K. Sharma et al. 2025. Effectiveness of shank blowing on moderate sleep apnea: a randomized controlled trial. ERJ Open Research 00258-2025; doi:10.1183/23120541.00258-2025
Astronomers utilizing the NASA/ESA Hubble Space Telescope have captured breathtaking new images of sections of the spiral galaxy known as NGC 45.
This Hubble image depicts the outer arm of the NGC 45, a spiral galaxy approximately 22 million light-years distant in the Cetus constellation. This color image was generated from individual exposures taken in both visible and near-infrared light using Hubble’s Wide Field Camera 3 (WFC3). The colors have been produced by assigning different hues to each monochromatic image captured through various filters. Image credits: NASA/ESA/Hubble/D. Calzetti/R. Chandar/Mhözsaraç.
NGC 45 is located about 22 million light-years away within the constellation of Cetus.
Also referred to as DDO 223, ESO 473-1, or Leda 930, this galaxy spans roughly 81,000 light-years in diameter.
The discovery of NGC 45 dates back to November 11, 1835, by British astronomer John Herschel.
“The data from Hubble utilized to create this portrait of NGC 45 was obtained from two complementary observational programs,” stated Hubble astronomers.
“Initially, we leveraged Hubble’s capability to capture light from ultraviolet to near-infrared ranges to broadly observe galaxies and examine star formation within them.”
“In the second program, we focused on many of the same nearby galaxies as the first, narrowing down to a specific wavelength of red light known as H-alpha.”
“Star-forming nebulae emit strong H-alpha light, and several of these areas can be identified by their bright pink red color throughout NGC 45.”
“These observational programs aim to investigate star formation across galaxies of varying sizes, structures, and separations, making NGC 45 a particularly compelling target.”
Though it may appear to be an ordinary spiral galaxy, NGC 45 is actually a remarkable low surface brightness galaxy.
“Low surface brightness galaxies are more intriguing than the evening sky and are incredibly challenging to detect,” articulated the researchers.
“They possess relatively fewer stars in relation to the amount of gas and dark matter they contain, making them appear unexpectedly faint.”
“Since the accidental discovery of the first low-surface brightness galaxies in 1986, scientists have learned that 30-60% of all galaxies may fall within this category.”
“Investigating these elusive galaxies is crucial for understanding the formation and evolution of galaxies, and Hubble’s sensitive instruments are well-suited for this task.”
This weekend, powerful and destructive thunderstorms are anticipated in the Midwest, Central Plains, and Southeast, leading to heavy rain and flash flooding in the upcoming days.
By early Saturday, rain and strong wind gusts had already left over 50,000 residents in Nebraska without power. Poweroutage.us. The National Weather Service warns that severe weather may still be unfolding.
The agency forecasts “massive nocturnal thunderstorms” affecting parts of the Midwest from the weekend through Monday.
Clusters of thunderstorms, especially during nighttime, are likely to produce “very heavy rain” along corridors extending from northern Missouri to southern Iowa and southern Wisconsin. The National Weather Service reports.
Consequently, there is a significant flash flood threat across the region.
In the Southeast, storms are expected to persist, particularly in northern Florida and southern Georgia this weekend, accompanied by heavy rainfall.
“The daily heavy rains on already saturated ground present localized flooding risks, especially along the coast in southeastern Georgia,” the local NWS branch in Jacksonville, Florida, stated in their weekend predictions.
Central and South Florida may experience numerous showers and slow-moving storms, leading to damaging winds and heavy downpours, according to the NWS.
Meanwhile, the Southwest is grappling with record-breaking heat. Triple-digit temperatures are widespread in Arizona, Nevada, and New Mexico, with Phoenix hitting 118 degrees Fahrenheit on Thursday, breaking the city’s daily record. Other Arizona cities, including Scottsdale, Yuma, Bryce, and Deer Valley, have also reported similar daily temperature records. The National Weather Service confirmed.
Although the weekend temperatures in Arizona and other areas of the Southwest Desert are expected to be less extreme than recent highs, the NWS indicates that high temperatures above 110 degrees Fahrenheit are still possible.
In Albuquerque, Friday’s high of 101 degrees Fahrenheit shattered the previous record of 98 degrees F set in 2011. The NWS reported. A heat advisory remains in effect until Saturday evening, just before a storm moves through central and northeastern New Mexico on Sunday.
Evacuations that impacted thousands in Ventura and Los Angeles counties have been reduced to warnings, indicating ongoing risks to life and property.
The Canyon fires are active in the hilly areas north of Los Angeles and are progressing towards the Castatic community in LA County.
Officials from Ventura County reported on Friday that the use of water and fire retardant has significantly hindered the fire’s spread, supported by the consistent efforts of ground crews.
Despite this progress, the fire remains a considerable threat and is continuing to extend eastward.
In a Friday update on X, the LA County Fire Department noted that three firefighters sustained minor injuries while combating the blaze and were transported to a local hospital “out of an abundance of caution.” They are expected to make a full recovery.
The South Coast Air Quality Control District has issued advisories concerning wildfire smoke for parts of LA County, particularly along the I-5 corridor near Lake Castaic. Air quality issues are anticipated to persist until Sunday morning, as reported by the agency that tracks air quality for Los Angeles, Orange, Riverside, and San Bernardino counties.
Wildfire smoke is a significant pollution concern, as it contains fine particles smaller than 2.5 micrometers—about 4% of the width of an average human hair. Such pollution is hazardous, as these particles can penetrate deep into the lungs, exacerbating conditions like asthma, lung cancer, and other chronic respiratory diseases.
The Canyon Fire ignited near Holster Canyon on Thursday afternoon, rapidly consuming over 1,500 acres within a few hours.
This blaze is one of several significant fires currently affecting California, including the massive Gifford Fire, which started on August 1st in the Rospadres National Forest, burning over 100,000 acres and achieving only 21% containment. As per Cal Fire.
Recent research suggests that the concealed structural weaknesses in the Yukon, Canada, may be primed to trigger a significant earthquake of at least magnitude 7.5, as outlined in the latest study.
The Tintina Fault, stretching from northeastern British Columbia to central Alaska, has been silently accumulating tension for over 12,000 years. A new investigation previously deemed relatively harmless indicates that it remains very active.
Regrettably, scientists are unable to predict when the next major quake will strike.
“Our findings indicate that the fault is active and continues to build strain,” said Dr. Theron Finley, the lead author of the study published in Geophysical Research Letters, in a statement to BBC Science Focus. “I expect it will eventually rupture again.”
The Tintina Fault is classified as a “right-lateral strike-slip fault,” where two blocks of the Earth’s crust slide horizontally past each other. If one side moves to the right during an earthquake, it’s identified as right-lateral.
Over the ages, one side of the fault has shifted approximately 430 km (270 mi), during a geological period that spanned roughly 560 to 33.9 million years ago, predominantly in the Eocene epoch.
The Tintina Fault extends 1,000 km (600 mi) from northeastern British Columbia to Alaska. – Credit: National Park Bureau
While minor earthquakes occasionally occur in the region, the Tintina Fault has generally been considered dormant.
“There have been small earthquakes in the 3-4 magnitude range detected along or near the Tintina Fault,” Finley noted. “However, nothing has strongly indicated that a larger outbreak is likely.”
This perspective changed when Finley and his team revisited the fault with advanced technology. By integrating satellite surface models with drone-mounted Light Detection and Ranging (LiDAR) data, researchers uncovered hidden seismic activity within the dense Yukon forests.
The landscape revealed cliffs associated with the fault, forming long, narrow terrains created when a quake pushed material to the surface, often collapsing in the process. These features can span dozens or even hundreds of kilometers, but are typically only a few meters tall and wide.
“In the case of the Tintina fault, these features appear as a series of intriguing mounds,” Finley stated.
By dating these surface formations, researchers determined that the fault has ruptured multiple times over the last 2.6 million years, though no significant earthquakes have occurred in the past 12,000 years.
Fortunately, the region is sparsely populated. However, if the fault does rupture, Finley cautioned that major landslides, infrastructure damage, and impacts on nearby communities would be highly probable.
“We want to emphasize that we don’t have a precise sense of how imminent an earthquake is,” he noted. “Our observations indicate it has been a long time since the last significant quake, but there’s no way to know if one is more likely in the near or distant future.”
Finley remarks that the fault has been confirmed as active, and the next step is to better estimate the frequency of large earthquakes in the area. This could help provide a more reliable timeline, even though scientists cannot accurately forecast when the next rupture may happen. Stay tuned.
“Earthquakes don’t necessarily occur on a regular basis, but they can give us a clearer understanding of how often we can expect significant events,” Finley explained. “Regardless, when the Tintina fault finally releases, it won’t be inconsequential.”
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About our experts
Theron Finley is a geologist at the Yukon Geological Survey. He recently obtained a doctorate from the University of Victoria in Canada and has conducted research on active faults in Western Canada, utilizing remote sensing, structural geology, and paleoseismology.
Our brains are glowing. While this phenomenon isn’t visible to the naked eye, scientists have the ability to detect faint light that permeates the skull. Recent studies indicate that this light varies based on our activities.
All living tissues generate a subtle light known as Ultraweak Photon Emissions (UPE). This emission ceases once the organism dies. The human brain, however, emits a considerable amount of this light due to its high energy consumption, accounting for around 20% of the body’s total energy.
“Ultraweak photon emissions, or UPE, are extremely faint light signals produced by all types of cells throughout the body—trillions of times weaker than the light from bulbs,” stated Dr. Nirosha Murugan, an Assistant Professor of Health Sciences at Wilfrid Laurier University in Ontario, Canada. BBC Science Focus.
“Although UPE is a weak signal, the energy expenditure of the brain generates more light than other organs,” she explained. “Consider the hundreds of billions of brain cells; each one emits a weak light signal, but together they create a measurable collective glow outside the head.”
Murugan’s research team aimed to explore whether this glow fluctuated with brain activity and if it could be utilized to assess brain functions.
To investigate, scientists equipped participants with caps containing electrical sensors to track both electrical impulses and light emitted from the brain. Twenty adults were invited to sit in a darkened room.
Participants were directed to open and close their eyes and follow simple audio instructions.
Comparisons were made between the captured electrical signals and UPEs, revealing notable correlations.
“We discovered that the optical signals detected around the head correlate with electrical activity in the brain during cognitive tasks,” Murugan noted. “These patterns of light emission from the brain are dynamic, intricate, and informative.”
The brain emitted this light in a slow, rhythmic pattern, occurring less than once per second, creating the illusion of stability throughout the two-minute tasks.
All living cells emit ultrawave light as a byproduct of chemical reactions such as energy metabolism – Credit: Sean Gladwell via Getty
Murugan indicated that measuring this brain light could offer scientists and medical professionals a novel method for brain imaging, potentially identifying conditions like epilepsy, dementia, and depression.
This light is not merely a by-product; it might also play a functional role in the brain. Murugan emphasized that examining it could “uncover hidden dimensions” of our cognitive processes.
“I hope that the possibility of detecting and interpreting light signals from the brain will inspire new questions previously deemed unfathomable,” she stated. “For instance, can UPEs permeate the skull and influence other brains within the vicinity?”
This study serves as a preliminary exploration, suggesting that plenty remains to be uncovered about our illuminating brains.
Nonetheless, Murugan expressed hope that the team’s discoveries will “ignite a new discussion regarding the significance of light in brain functionality.”
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About our experts
Dr. Nirosha Murugan is an assistant professor in the Department of Health Sciences at Wilfrid Laurier University, Ontario, Canada. She was recently appointed as Tier 2 Canada Research Chair of Biophysics at the University of Algoma in Ontario.
You might have come across the term “fibremaxxing.” This recent health craze, popularized on platforms like TikTok, involves individuals significantly increasing their daily fiber intake. The recommended amount is 25-30g (0.9-1 oz) per day with the goal of enhancing gut health.
Influencers are now dubbing fiber as the “new protein,” promoting high-fiber foods such as beans, lentils, whole grains, fruits, and vegetables. Some even resort to fiber supplements to meet their daily targets.
This theory suggests that such increases have potential health benefits, including improved digestion, more regular bowel movements, increased gut bacteria, and relief from symptoms associated with irritable bowel syndrome (IBS).
This trend arises from the belief that modern diets often lack sufficient fiber, and there is certainly some truth to this.
So, ramping up fiber consumption must be beneficial, right? However, it’s not that straightforward, particularly in relation to diet and health.
Intestinal Reactions
Fiber plays a crucial role in gut health for several reasons.
Though it is a carbohydrate, fiber differs from other carbs like starch and sugar; it is not digested in the small intestine. Instead, it travels to the large intestine where gut bacteria utilize it. These bacteria offer various health benefits by producing short-chain fatty acids (SCFAs) that contribute positively to our health.
Non-decomposable fibers absorb liquid, increase stool bulk, and make elimination smoother. Thus, boosting fiber intake can help prevent constipation and regulate bowel movements.
Individuals with IBS often believe enhanced fiber intake soothes symptoms, particularly if they experience more constipation than diarrhea.
Vegetables offer a variety of fibers, both soluble and insoluble, beneficial for gut health.
Research suggests that adequate fiber intake can reduce the risk of colon cancer. One SCFA produced in the large intestine, butyrate, is believed to have anti-inflammatory and protective properties for colon cells.
By facilitating stool passage, fibers minimize the contact time colon cells have with harmful substances, potentially explaining the rising incidence of colon cancers worldwide. Particularly among young individuals who consume insufficient fiber-rich foods.
Nonetheless, while incorporating more fiber into your diet is generally beneficial, “fibremaxxing” requires a nuanced understanding of nutrition. It’s akin to running a marathon without proper training for your gut.
The Risks of Overconsumption
The gut is a complex ecosystem, finely tuned to maintain balance, and introducing excessive specific nutrients can lead to unintended consequences. Some proponents of “fibremaxxing” advocate for fiber intakes exceeding 50g (1.8oz) daily, possibly resulting in side effects such as bloating, cramps, and diarrhea.
There’s also a variety of fiber types to contemplate. Soluble fibers absorb water and slow digestion, while insoluble fibers pass through largely intact, hastening digestion. Moreover, fermentable fibers feed bacteria in the large intestine.
A healthy gut requires a balance among these fibers. Excessive insoluble fiber (found in wheat bran and some vegetables) may bulk up stool but irritate sensitive digestive organs. Certain fermentable fibers, like oligosaccharides, disaccharides, monosaccharides, and polyols (known as FODMAPs), can complicate absorption and potentially aggravate IBS symptoms.
To effectively support gut health, a balance of different fiber types is essential. By aiming excessively high, such as 50g (1.8oz) daily, “fibremaxxers” might confine their diet to a limited array of fiber-rich foods.
For example, high-fiber breakfast cereals provide 12.4g of fiber per 100g (0.5 oz per half cup); to reach their lofty goals, individuals may feel compelled to consume multiple bowls throughout the day. However, cereal mainly offers insoluble fiber, lacking soluble and fermented fiber.
Consequently, excessive fiber can lead to increased digestive discomfort and disrupt the delicate equilibrium required for a healthy gut, particularly if individuals neglect to consider how to balance their nutrient intake.
Cleansing Trends
By prioritizing one nutrient for specific health benefits, fibremaxxing fits into a long tradition of cleansing and detox trends targeting digestive health.
While various gut cleansing rituals frequently trend on social media and appear enticing, they often cause more harm than good. For instance, juice cleanses can strip away vital nutrients, and “detox” teas and laxatives may result in dehydration and long-term harm to the intestinal lining.
Additionally, recent trends involving enemas can disrupt the natural rhythm of the intestines and eliminate beneficial bacteria.
Juice cleansing is neither a healthy nor a safe dieting approach.
Experts advise caution regarding trendy supplements and extreme elimination diets that exclude entire food groups without proper oversight, as these may reduce microbial diversity and impair digestion. Your gut won’t appreciate these drastic resets; what it truly needs is ongoing, careful, and balanced support.
Monitoring Your Fiber Intake
How can you determine if you’re consuming enough fiber in your diet and if you need to increase your intake?
Signs such as fatigue and weight gain are often early warnings. Soluble fiber slows digestion, contributing to prolonged feelings of fullness while gradually releasing sugar into the bloodstream.
In its absence, blood sugar levels can fluctuate unpredictably, leading to fatigue shortly after meals. Such energy dips can tempt you into snacking, resulting in weight gain.
While fibremaxxing may have begun as a sincere effort to boost well-being, like many health trends that go viral, it oversimplifies complex bodily processes and poses risks by overdoing things.
It’s evident that most individuals will benefit from increasing fiber consumption, especially from plant-based foods, which can aid digestion, lower disease risk, and help maintain healthy weight. However, this must be done cautiously; excessive, sudden, or unbalanced increases can be detrimental.
Your gut is a finely tuned ecosystem that flourishes through diversity, consistency, and balance—not through drastic changes or quick fixes.
The planetary candidate, Alpha Centauri AB, may be a gas giant orbiting at a distance of one to two times that of the Earth from the Sun, as indicated in two research papers. Astrophysics Journal Letter. If verified, this planet would be the closest known to Earth within the habitable zone of a Sun-like star. Nonetheless, since it is a gas giant, astronomers do not believe it could support life as we understand it.
Artist’s rendering of the gas giant Alpha Centauri A. Image credits: NASA/ESA/CSA/STSCI/Robert L. Hurt, Caltech & IPAC.
Alpha Centauri resides in the Centaurus constellation and represents the nearest star system to Earth.
Also referred to as Rigil Centaurus, Rigil Kent, and Griese 559, this system includes a bright binary star pair, Alpha Centauri A and Alpha Centauri B, alongside a fainter red star known as Alpha Centauri C.
The two prominent stars are approximately 4.35 light-years away, while Alpha Centauri C, commonly called Proxima Centauri, is slightly nearer at about 4.23 light-years.
In comparison to the Sun, Alpha Centauri A is a G2-type star similar in nature, but slightly larger (1.1 times the size of the Sun and around 1.5 times its luminosity).
Alpha Centauri B, classified as a K1-type star, is slightly smaller and less luminous (approximately 0.9 times the mass of the Sun, with about 45% of its visual brightness).
These two stars orbit around a common center of gravity approximately every 80 years, maintaining a minimum distance of about 11 times that of the Earth-Sun distance.
Astronomers study these stars closely along with our nearest interstellar neighbor, Proxima Centauri, making them prime targets in the search for potentially habitable planets.
“This proximity offers the best chance to gather data on planetary systems beyond our own,” stated Dr. Charles Beichman from NASA’s Jet Propulsion Laboratory and the Exoplanet Science Institute at IPAC Astronomy Center in California.
“However, the brightness and swift motion of these stars present significant challenges in observation, even for the world’s most advanced space telescopes.”
The Alpha Centauri star system captured by different terrestrial and space-based observatories: DSS, Hubble Space Telescope, and James Webb Space Telescope. While the DSS shows the triple system as one light source, Hubble distinguishes between Alpha Centauri A and B. Webb’s Milimask image mitigates glare from Alpha Centauri A via a coronagraphic mask. Image credits: NASA/ESA/CSA/ANIKET SANGHI, CALTECH/CHAS BEICHMAN, NEXSCI, NASA & JPL-CALTECH/DIMITRI MAWET, CALTECH/JOSEPH DEPASQUALE, STSCI.
The first observations of this system occurred in August 2024, employing a Coronagraphic Mask with Webb’s Mid-Infrared Instrument (MIRI) to reduce the brightness of Alpha Centauri A.
The presence of nearby companion star Alpha Centauri B added complexity to the analysis, but astronomers successfully subtracted the light from both stars, uncovering objects that were more than 10,000 times dimmer than Alpha Centauri A.
On the other hand, an initial detection was promising, but further data was required for a definitive conclusion.
However, subsequent observations in February and April of 2025 did not unveil any objects akin to those detected in August 2024.
“We are facing a case of disappearing planets,” remarked Dr. Aniket Sangi from Caltech.
“To unravel this mystery, we employed computer models simulating millions of potential orbits, taking into account the insights gained from observing planets and their absence.”
In the simulations, the team incorporated the 2019 sightings of potential exoplanet candidates reported by the ESO’s Very Large Telescope, alongside new data from Webb, considering the gravitational stability of orbits influenced by Alpha Centauri B.
“The non-detections in the second and third rounds with Webb were not unexpected,” stated Sangi.
“In many simulated orbits, the planet was positioned too close to the star, rendering it invisible to Webb during both February and April 2025.”
“Based on mid-infrared observations of planetary brightness and orbital simulations, this gas giant could have a mass similar to Saturn, orbiting Alpha Centauri A at a distance one to two times greater than that between the Sun and Earth.”
“If confirmed, the potential planets identified in Webb’s Alpha Centauri images will represent a significant milestone in exoplanet imaging efforts,” Sangi added.
“Of all directly imaged planets, this would be the closest star we have ever observed.”
“Moreover, it would be the nearest to our home, with gas giants in our solar system that are similar in temperature and age to Earth.”
“The mere existence of two closely separated star systems poses intriguing challenges to our understanding of planetary formation, survival, and evolution within chaotic environments.”
If substantiated by further observations, these findings could reshape the field of exoplanet science.
“This will become a pivotal object in exoplanet research, offering multiple opportunities for detailed characterization by Webb and other observatories,” Dr. Beichman concluded.
____
Charles Beichman et al. 2025. The Neighbor World: Imaging a giant planet candidate, orbital and physical properties of CEN A, and habitable zones at the exozodiacal upper limit. ApJL in press; Arxiv: 2508.03814
Aniket Sangi et al. 2025. The Neighbor World: Imaging a giant planet candidate in the habitable zone of Cen A. II. Binary Star Modeling, Planetary and Exozodiacal Search, and Sensitivity Analysis. ApJL in press; Arxiv: 2508.03812
Could the gravitational wave signal be from a black hole or something more peculiar?
Titoonz / Alamy
Exotic viscous stars might emulate signals from black holes, mirroring the ripples in spacetime.
Since 2015, scientists have been uncovering the universe’s secrets by monitoring both light waves and gravitational waves, the ripples in the cosmos. Jaime Redondo-Yuste from the Neals Bohr Institute in Denmark and his team found that they can reflect gravitational waves, similar to light waves, but only from unusually viscous celestial objects.
The researchers began exploring the possibility of creating a gravitational wave mirror. While earlier studies hinted at its feasibility, developing equations that adhere to physical laws proved challenging. They eventually understood that reflectors don’t need to be flat.
“We can have a spherical mirror, and we need stars,” explains Redondo-Yuste. However, these stars must possess an extraordinarily high viscosity akin to molasses. Their calculations indicated that such stars could indeed reflect gravitational waves, as they are too rigid to be disturbed by passing waves.
Daniel Kennefick from the University of Arkansas highlights that this behavior is rare since most materials are transparent to gravitational waves, just as glass is to light. “Even when we are very near sources of powerful gravitational waves, they pass through us without any noticeable effect,” he remarks.
In addition to their strangeness, stars capable of deflecting gravitational waves must be compact and on the brink of collapsing into black holes. Redondo-Yuste notes that black holes themselves are very viscous. Therefore, when gravitational wave signals reach Earth, other highly viscous objects could be misidentified as black holes, with subtle differences in their signals. For instance, collisions between viscous stars and black holes would yield slightly distinct gravitational wave signatures due to tidal influences.
Researchers have previously detected celestial bodies believed to have heightened viscosity, such as extremely hot neutron stars formed from the merger of others. However, it’s still uncertain whether these stars possess sufficient viscosity to align with the team’s mathematical model, according to Paolopani from the University of Sapienza in Rome, Italy.
He suggests that forthcoming gravitational wave detectors will enhance our understanding of the viscosity of known objects and assist in discovering new ones. “This serves as a prelude to what we should be searching for,” Kennefick says.
To date, observational data hasn’t provided strong evidence for classifying what scientists identify as a black hole as an exotic star. All three researchers agree that the likelihood of observing these viscous stars has been minimal thus far.
“However, it’s our responsibility to continue these investigations,” insists Redondo-Yuste. “Only in this way can we compile a complete catalog of the entities populating our universe.”
Spectroscopy enables astronomers to detect traces of matter in stars, galaxies, and other cosmic entities. Black holes consume dust and encounter various phenomena around them; as material spirals into a black hole, it compresses and heats up. Stephen Finkelstein, a co-author and professor of astronomy at the University of Texas at Austin, noted that all of this can be observed through spectroscopy.
“We’re searching for these signatures of extremely fast gas,” Finkelstein explained. “We’re discussing speeds of 1,000, 2,000, and at times even 3,000 kilometers per second. There’s nothing else in the universe that moves this quickly, so we can confirm it must be the gas surrounding a black hole.”
Scientists have pinpointed a potential distant black hole candidate, which stands as the oldest candidate confirmed via spectroscopy, he added.
Researchers also find galaxies containing new black holes to be intriguing discoveries. According to Taylor, these galaxies belong to a class known as “Little Red Dots.”
While not much information is available about Little Red Dots, they were first detected by the James Webb Space Telescope. Some have been found relatively close by, but Finkelstein indicated that they are likely more prevalent in the early universe.
Investigating the Capers-Lrd-Z9 Galaxy may offer insights into the rarity of red dots and what defines their unique coloration, researchers noted. It could also shed light on the growth of these ancient black holes during the universe’s formative stages.
In subsequent studies, researchers aim to locate more black holes in the distant cosmos.
“We’re just going to examine a very limited section of the sky using the James Webb Space Telescope,” Finkelstein stated. “If we discover one thing, there ought to be more.”
Kick off with Moth Genitalia. Joe Harkness originally intended to write a book centered on “The Benefits of Niche Nature.” Ecologists, naturalists, and conservationists often have a fondness for squirrels or even peculiar genitalia for identification purposes. However, a suggestion from his editor redirected him. What if the themes of these niche interests overlap with feelings of anxiety?
Harkness, diagnosed with ADHD, reflects that upon returning to interviewees, it’s not surprising to find that many have also been diagnosed with autism, ADHD, or other “DYS” conditions (like dyslexia, dyspraxia, or dyscalculia).
The book, Neurodivergent, essentially: Why Neurodiversity Needs Biodiversity, presents a crucial and engaging exploration of the significance of “nature” for the neurodivergent community, thoroughly examining how neurodiversity interacts with the conservation sector in the UK.
Readers are introduced to striking and unexpected contrasts. Harkness and his interviewees often describe the wild outdoors as “safe spaces” and “non-judgmental” environments where sensory stimulation can occur without overwhelming the senses. Yet, it becomes clear that many of Harkness’s subjects work in highly competitive fields characterized by high demands and low earnings. “We cannot overlook the evident exploitation that happens in this field,” he states, especially when taking into account neurological conditions.
Defining neurodivergent experiences can be a tricky and potentially foolish endeavor. Harkness opts for a more open-ended approach, stressing that the “unique neural skillset” possessed by many in conservation work often goes unrecognized and unutilized.
He highlights an intense focus, heightened sensory awareness, and a moral compass directed solely towards nature. Conversely, he also addresses the drawbacks—hyperfocus might lead to excessive literal thinking.
Harkness acknowledges the ongoing tension many neurodivergent conservationists face. “We prefer to invest our energy in safety rather than dealing with chaos. However, we need to attract these individuals for them to drive positive change.”
While the book occasionally shifts focus, particularly when addressing the challenges faced by women, youth, and individuals from ethnic minorities, it serves as a helpful reminder of how neurodiversity intertwines with a myriad of social, economic, political, and environmental issues. There are no easy resolutions here.
Harkness is a charismatic and passionate guide in familiar territories, engaging with a wide array of voices. His conversations are often exhilarating, sometimes distressing, and frequently humorous, yet there’s a desire for more personal narratives from those he interviews.
Though Harkness critiques the employment practices and workplace culture of certain conservation organizations from a neurodivergent perspective—some aspects may feel diluted later on—the work remains captivating and essential. Addressing our climate and ecological crises requires perspectives from all sides.
Richard Smith is a writer and crossword compiler for New Scientist
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What might the artistic concept of a gas giant in orbit around Alpha Centauri A resemble?
ESA/Webb Copyright: NASA, ESA, CSA, STSCI, R.
A massive planet comparable to Saturn is potentially identified orbiting a sun-like star in our nearest stellar system, Alpha Centauri.
Located just four light-years from Earth, Alpha Centauri is the closest star system to us, comprising three stars: Alpha Centauri A, Alpha Centauri B, and the Red Dwarf Star Proxima Centauri. Scientists have long speculated that planets akin to those in our solar system could exist in such systems, and whether planets can reside at distances similar to our Sun’s “habitable zone” around binary stars has been a matter of intrigue. “These stars are very bright, relatively close, and move quickly across the sky,” mentions Charles Baichman from Caltech in a statement.
Recent observations gathered by the James Webb Space Telescope (JWST) mid-infrared instrument suggest that a gas giant possibly as substantial as Saturn is orbiting the sun-like star, Alpha Centauri A. This discovery has come as a surprise. “Webb was specifically designed to identify the most distant galaxies, not exoplanets,” remarked Beichman, underscoring that such an identification must be meticulously coordinated through numerous observations, evaluations, and computer simulations, which “can yield remarkable insights.”
While previous methodologies for detecting planets relied on indirect measurements, the JWST executed a “more ambitious” approach by actually gathering light from potential planets, according to Alan Boss of Carnegie Science in Washington, DC, who was not involved in this particular study. Nevertheless, visibility of the potential planets was lost in subsequent observations.
“We’re encountering a case of a disappearing planet!” exclaimed Aniket Sanghi, also at Caltech, in a statement. The research team ran simulations of millions of possible trajectories to solve this conundrum, determining that “in half of the possible simulated orbits, the planet would have been too close to the star, making it undetectable by Webb in both February and April 2025,” he said.
As a gas giant, this planet wouldn’t support life as we know it. However, if this finding is validated, it could significantly enhance our understanding of planet formation around stars. “The mere existence of two closely situated stars within a stellar system will challenge our comprehension of how planets form, survive, and evolve under such chaotic circumstances,” Sangi pointed out. “This is also crucial for Earth, as it is our closest neighbor, beside the giant planets in our solar system, with a temperature and age somewhat akin to Earth.”
This revelation has been documented in two accepted papers for publication in Astrophysics Letters.
Honeybees battle infectious fungi, bacteria, mites, and viruses daily.
Anthony Brown/Alamy
Two non-threatening viral infections in adult honeybees are surprisingly covert and might disrupt their flying ability. One virus enhances speed, while the other acts as a brake.
Bees face a continual fight against infectious fungi, bacteria, mites, and viruses, many of which pose a threat to entire colonies. However, not all pathogens are equally harmful. For instance, both the deformed wing virus (DWV) and the sacbrood virus (SBV) can lead to severe symptoms if they infect honeybees during their early development. Despite being linked to increased mortality and a decrease in colony size, infection in adult honeybees is often viewed as asymptomatic. Michelle Flenniken from Montana State University and her team questioned whether these viruses were truly harmless.
The researchers studied bee health through their flight capabilities and infected bees with either DWV or SBV. After three days, the bees were tethered to a device resembling a set of small balls, forcing them to fly in circles. A total of 240 bees were observed, and the team measured their flight speed, duration, and distance.
Flenniken and her colleagues found that bees infected with DWV flew at slower speeds compared to uninfected counterparts. Conversely, those infected with SBV exhibited enhanced flight performance. The team predicts that bees with high DWV levels will cover 49% shorter distances than healthy honeybees. In contrast, severely infected SBV bees could experience a flight range increase of up to 53%. “SBV infections are detrimental to larvae and typically harm overall colony health,” says Flenniken.
This research reshapes our understanding of the subtle and odd impacts stealth infections can have on honeybee behavior. Other pathogens are known to influence bee actions. For instance, the Kako virus, a distinct variant of DWV, may provoke more aggressive behavior in bees, as noted by Eugene Riabov, who was not part of this research at the James Hutton Institute in the UK.
“It’s fascinating to observe how members of both DWV and SBV, which are closely related, exhibit such contrasting effects on honeybee aerodynamics,” remarks Riabov.
By disrupting bees’ ability to fly and collect nectar, viruses like DWV could negatively affect their pollination of nearby plants, complicating their foraging efforts. Consequently, as bees struggle, the implications reverberate throughout the entire ecosystem.
Hubble Space Telescope Image of Interstellar Comet 3i/Atlas. The telescope tracked the comet, causing background stars to appear as streaks.
NASA, ESA, David Jewitt (UCLA)/Joseph DePasquale (STScI)
The telescope’s observations of the Interstellar Comet 3i/Atlas have shown it resembles a comet found beyond our solar system. Intriguing aspects, like the substantial amounts of water detected even far from the sun, may shed light on the ancient stellar system from which it originated.
Objects from other solar systems that pass through ours are extremely rare. Discovered in July, 3i/Atlas is the third such interstellar visitor, following Oumuamua in 2017 and Borisov in 2019. Remarkably, its visit has only been a few months long.
Scientists speculate that its high speed may indicate that it originates from a star system billions of years older than our own. Initial estimates suggested it has a diameter of approximately 20 kilometers, but details about the extensive plume of water and gas remain limited.
Toni Santana Ross from the University of Barcelona and colleagues have utilized ground-based telescopes to observe the comet and its tail, finding it contains moderate amounts of dust. Notably, the dust appears to increase as the comet approaches the sun, mirroring patterns seen in comets from our outer solar system. “It’s a typical object; there’s nothing particularly strange about it,” states Santana Ross.
Astronomers have also monitored comets via space. Researcher collaborating found that the Hubble Space Telescope might estimate the comet’s size between 320 meters and 5.6 kilometers, and it likely started off much smaller.
Comets usually contain ice, which vaporizes as they near the sun, creating water vapor in their tails. Utilizing the Neil Gehrels Swift Observatory Satellite, Zexi Xing from Auburn University has detected water in the comet’s tail located significantly farther from the sun than is typical for comets. The amount of water detected suggests that about 20% of the comet’s surface is responsible for this production, exceeding typical solar system comet proportions.
Such prolific water generation may indicate that 3i/Atlas originates from a star system much older than ours, hypothesizes Cyrielle Opitom at the University of Edinburgh. This is due to older stellar systems generally having higher water content compared to other molecules. “It might be that because it formed earlier, it retains more water than other molecules, but it’s premature to reach a conclusion,” she remarks.
Astronomers are also scouring historical data to determine if the telescope mistakenly detected a comet. Adina Feinstein and her team at Michigan State University have found that the transit exoplanet survey satellite (TESS) was operationally searching for planets around other stars and incidentally captured a comet between May 7 and June 3. “It just happened that we were observing the exact region where 3i/Atlas was at that moment,” says Feinstein.
The comet was found to be surprisingly bright at that time, suggesting it was releasing significant amounts of water or gas even at considerable distances from the sun. “We didn’t detect transits in regions of our solar system where water would typically start to react,” highlights Feinstein.
In this distant region, the likelihood of finding water is low, with gases such as carbon monoxide and carbon dioxide being more common, according to Opitom. “This is a pattern seen in comets from our solar system; they can exhibit activity at much greater distances due to these volatile materials.”
Yet, the fact that it was active so far from the sun could indicate that this comet has not been significantly exposed to starlight throughout its life, notes Matthew Jenge from Imperial College London.
“What this implies is that this comet was ejected from the fringes of another solar system,” Genge describes. While the exact cause of its ejection is uncertain, it’s possible that gravitational forces from a nearby star could have set it on a trajectory towards us, he explains.
Opitom mentions that the James Webb Space Telescope has recently conducted its observations and that astronomers will analyze the data in the upcoming weeks, promising more insights into 3i/Atlas soon.
As comets approach their closest point to the sun in October, astronomers will have the opportunity to measure the gases they emit. This will provide important insights not only into the characteristics of the comet itself but also into the composition of the molecules in its active tail, which may reveal details about the formation of 3i/Atlas, according to Opitom.
Similar to previous interstellar objects, speculations about potential alien technology exist, but Santana Ross has found no supporting evidence. “If you take a holiday photo and see something tall with a long neck and four legs, you might think of it as an alien, but it’s most likely a giraffe,” he quips. “There’s no reason to believe this is anything unusual or evidence of something extraordinary.”
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The heaviest atoms that form the molecule were observed
David Dixon, Sarah Sprouse/University of Alabama; Jennifer Pore/Berkeley Lab
Scientists have observed the heaviest atoms participating in chemical reactions and forming molecules. This groundbreaking discovery could potentially reshape the periodic table, advancing “super heavy” chemistry, which encompasses large-scale radioactive elements.
Some rare chemical elements are challenging to study, complicating their placement in the periodic table. For instance, the radioactive element copernicium is situated among transition metals but behaves like elements from various groups.
This challenge also affects the lower elements of the table. Heavy radioactive atoms known as actinides can be examined by Jennifer Pore at Lawrence Berkeley National Laboratory in California. To better understand the properties of actinides, she and her team initiated a chemical reaction to produce a molecule featuring Nobelium, the heaviest actinide and element 102.
The researchers employed a particle accelerator to bombard highly energetic calcium atom beams into lead clusters. The collision resulted in the formation of Nobelium atoms, which subsequently reacted with nitrogen and water molecules present in the air. A swiftly operating detector, akin to a mass spectrometer, more accurately identified the resulting molecules than any prior chemical attempts.
Next, the team replicated the experiment using thorium instead of lead, creating an actinide called actinium (element 89). By comparing the reactions of actinium and nobelium, the researchers confirmed that these two elements behave similarly as they reside in the same column of the periodic table.
Nobelium not only has a rightful place in the periodic table, but it has also become the heaviest element directly observed forming new molecules. However, the heaviest element ever synthesized remains Oganesson, element 118. The techniques used to synthesize molecules containing nobelium and accurately identify them may open new avenues in research.
According to Sofia Heinz from the GSI Helmholtz Center for Heavy Ion Research in Germany, this new experiment marks a significant technological leap in hyperheavy chemistry. Although molecules containing elements heavier than nobelium have been synthesized in the past, researchers were unable to directly identify them. “Being able to study a single molecule directly is a key advancement,” she states.
Peter Schwerdtfeger from Massey University in New Zealand remarked that this novel experiment “opens the door for future experiments involving a diverse range of superheavy elements.”
Even prior to conducting new experiments, the findings have already made an impact. Pore and her researchers originally believed that additional molecules were needed to facilitate reactions with actinium and nobelium. However, unexpectedly, the superheavy element reacted with substances already present. Anastasia Bolshevski at the University of Groningen in the Netherlands suggested that this could prompt scientists to reevaluate past experimental data that assumed they were examining single atoms. “This will keep theorists busy for some time,” Schwerdtfeger adds.
For Pore, the next hurdle involves studying even heavier elements like dubnium, which is element 105. To accomplish this, teams may need to accelerate the procedures to accommodate the heavier elements.
“If all goes well, I aim to explore larger elements at the end of the periodic table. We have yet to explore their heaviness limits with this methodology,” Pore remarks. Unlike nobelium, some of these larger elements may require a new positioning within the standard table.
Volunteers engage in efforts to combat wildfires near Stamata, Greece in 2024
Nick Paleologos/Bloomberg via Getty Images
In light of current climate trends, Europe may grapple with summer heatwaves and severe droughts that could leave large parts of the continent enduring weeks of extreme temperatures, water shortages, and soaring energy costs.
Recent research aims to delineate the “worst-case scenario” regarding heat and drought potential during summer months in Central and Western Europe.
Laura Suarez-Gutierrez from Switzerland’s ETH Zurich and her team initiated their research with seven simulations based on climate models representing heatwaves. They systematically introduced minor variations to the initial atmospheric conditions of the models and assessed different potential outcomes, utilizing a method called ensemble boosting, resulting in more severe heat waves in each simulation.
“Each iteration generates numerous events with slight adjustments in the initial model state,” noted Vicki Thompson from the Royal Netherlands Meteorological Institute, which did not participate in the research. “The most severe scenarios they present suggest that such outcomes could occur right now.”
While many simulations failed to produce heatwaves, some resulted in significantly harsher heatwaves and droughts compared to historical records.
In the most extreme scenario, temperatures may soar to 45°C (113°F) for over a month in certain regions, accompanied by severe droughts. Events of this nature far exceed the heat and drought phenomena experienced in 2003 or 2018.
Additionally alarming is that this modeling implies that the most intense heat waves tend to follow each other closely, potentially leaving Europe in a cycle of extreme summers that heavily burden both humans and ecosystems. This increases the likelihood of wildfires, drought, energy and food shortages, and ecosystem collapse, experts warn.
“Our findings illuminate the potential effects of unprecedented combinations of heat, fire weather, and soil drought,” the researchers remarked.
This cycle of persistent heat waves and prolonged drought may be partly attributed to soil drying out due to extreme heat, explains Pascal Iu from the Institute for Climate and Environmental Sciences in France. One heatwave can deplete soil moisture and exacerbate extreme heat, stating, “Drier soil conditions can foster atmospheric systems that persist for extended periods.”
While Yiou collaborated with Suarez-Gutierrez, he was not part of the study. He emphasized that these worst-case scenarios are feasible outcomes given current climatic conditions. “They are not suggesting these events will definitely occur, rather they are indicating that such scenarios are possible,” he mentions. He drew a parallel with the 2021 heatwave in western North America, which shattered temperature records and became the deadliest weather event in Canadian history, made possible by very atypical atmospheric conditions that caused extraordinary heat levels.
“The goal is to establish optimal conditions for extreme events,” said Jana Sillmann at the International Climate Research Centre in Norway. This aids decision-makers in refining their emergency response plans, preparing for potential occurrences of record-breaking heatwaves in a single summer.
The culprit, the bacterium Vibrio vulnificus, thrives in warm seawater. According to the state health department, Florida has reported 16 cases so far this year. Louisiana has reported 17 cases, exceeding last year’s average. North Carolina has recorded seven incidents, confirmed by its Department of Health and Human Services, while Mississippi has filed three lawsuits this year, as per the state’s health department.
The initial fatalities in Florida were documented in Bay County along the Gulf Coast, as well as Hillsboro County and regions in Broward and St. John’s Counties, located just south of Jacksonville in southeastern Florida.
Bacteria can enter the body through skin wounds, resulting in tissue necrosis. According to the Centers for Disease Control and Prevention, vibrio vulnificus can also be contracted via the consumption of contaminated food, particularly raw oysters. The exact means of infection for those in Florida remains unclear.
As reported by the CDC, approximately one in five individuals infected with Vibrio vulnificus will die.
Antalpreet Jutt, a professor of engineering at the University of Florida, noted that while infections are still relatively rare, “something feels off this year.” Nevertheless, he mentioned the uncertainty around the reasons behind the spike in infections.
“This is definitely not normal,” Jutt expressed. “We haven’t encountered this many cases early in the summer in quite some time.”
Jutt explained that cases of Vibrio vulnificus tend to rise following hurricanes. Last year, Florida registered a total of 82 cases, potentially worsened by an “extremely active” hurricane season when bacteria can persist in floodwaters.
“This year, it seems there are a higher number of pathogens than usual,” he remarked.
The current hurricane season is still projected to be above average as the US enters its peak period, as reported by the National Oceanic and Atmospheric Administration.
Jutt’s research group is examining why there are elevated concentrations of plankton and chlorophyll (indicators of Vibrio) throughout the Florida panhandle, which he describes as a concerning trend.
What is Vibrio vulnificus?
Rita Colwell, a microbiology professor at the University of Maryland, states that Vibrio vulnificus is one of over 200 species of Vibrio bacteria.
Most Vibrio infections are not harmful to humans, according to Jutt. Some may only impact marine life.
However, Vibrio bacteria are responsible for around 80,000 infections annually, as reported by the Cleveland Clinic. The majority of these cases are gastrointestinal, with only 100-200 cases arising from Vibrio vulnificus. Other Vibrio species, such as Vibrio parahaemolyticus and Vibrio alginolyticus, are more commonly associated with stomach illnesses, while another, Vibrio cholerae, is known to cause cholera.
Vibrio bacteria are primarily found along the southeastern coast of the United States, favoring warmer waters, but are also present on the west coast. With rising sea temperatures, cases have increasingly been reported further north, including areas in New York, Connecticut, and parts of Maryland, Jutt noted.
Who is at risk?
Dr. Norman Beatty, an infectious disease specialist at the University of Florida Health, mentioned that spending time in salty or brackish waters can lead to Vibrio bacteria infiltrating open wounds. Most cases he has encountered are associated with extended exposure to the water, though even short contact can be sufficient.
Visible symptoms of infection can develop within hours, including redness, swelling, and the formation of “bull” blisters. This site can become painful. If the infection progresses, it may enter the bloodstream, potentially leading to sepsis, which can be fatal. According to the CDC, symptoms of sepsis include fever, chills, and dangerously low blood pressure.
Jutt mentioned that individuals with cirrhosis, weakened immune systems, and those over 65 are particularly vulnerable to infections.
Infections caused by Vibrio vulnificus can be treated with antibiotics.
How to prevent Vibrio infection
Beatty advises covering any open wounds before entering the ocean, noting that even waterproof band-aids can be effective.
Individuals who suspect they have an infection should seek immediate medical attention, Beatty cautioned. Delays can significantly increase the risk of severe complications compared to milder cases.
“Late presentations to healthcare are why many individuals suffer more serious consequences than others,” he stated. “Those who seek treatment shortly after the onset of symptoms, and are given antibiotics promptly, are likely to fare better and avoid severe complications.”
It’s not that the enormous, carnivorous dinosaurs weren’t the terrifying, bone-crushing predators we envision.
A new study published in the journal Current Biology reveals that a variety of bipedal carnivorous dinosaurs, including Tyrannosaurus Rex, Spinosaurus, and Allosaurus, have evolved to possess the necessary skull strength for powerful bites.
Utilizing 3D scanning and computer modeling, the researchers examined the skull biomechanics of 18 species of theropods.
The findings indicated that while T. Rex and other giants had skulls designed to deliver immense bite forces capable of breaking bones, they actually possessed relatively weak jaws and employed diverse hunting strategies.
“The skull of a T. Rex was specifically optimized for high bite force, which led to significant skull stress,” stated the lead author, Dr. Andrew Lowe from the University of Bristol, UK. “In contrast, stress patterns in other giants like Giganotosaurus suggested they had relatively mild bites. This implies a variety of evolutionary pathways for these carnivorous giants.”
Giganotosaurus is larger than T. rex, reaching 13m (43 feet) long and weighing almost 14 tons – Credit: Getty
Instead of adhering to a singular evolutionary path to apex status, large carnivorous dinosaurs evolved various skull shapes and feeding strategies. Some, like T. Rex, would bite down akin to a crocodile, while others, such as Allosaurus and Spinosaurus, employed thrashing or ripping techniques reminiscent of modern Komodo dragons and big cats.
“The Tyrannosaurus took a different approach,” remarked Steve Brusatte, a professor and paleontologist at the University of Edinburgh who was not part of the study, as reported by BBC Science Focus. “They developed immense bite strength, allowing them to crush the bones of their prey. This created a perilous lifestyle, subjecting the skull’s bones and muscles to significant stress.”
The results also challenge the belief that larger dinosaurs necessarily had stronger bites. Some smaller species may actually exert more stress on their skulls due to increased muscle mass, indicating that size alone isn’t the key factor in bite power.
The variability in bite strength and skull architecture hints at a more specialized ecological landscape in dinosaur ecosystems, offering multiple strategies for dominance in the prehistoric food chain.
“There wasn’t a singular ‘best’ skull design for being a predatory giant. Various designs proved effective,” noted Lowe. “This biomechanical diversity implies that dinosaur ecosystems supported a more extensive range of giant carnivorous ecological niches than we typically consider, with less competition and greater specialization.”
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About our experts
Steve Brusatte is a professor and paleontologist at the University of Edinburgh, and author of the book Mammal Ascending and Governing (20 pounds, Picador), focusing on 325 million years of mammalian evolution and fossils.
Astronomers have discovered and quantified the largest black hole ever found. This colossal black hole approaches the theoretical maximum size allowable in the universe and is approximately 10,000 times the mass of Sagittarius A*, the supermassive black hole located at the center of the Milky Way.
This Hubble image features a horseshoe-shaped gravity lens (from center to right). Behind it is a blue galaxy, distorted into a horseshoe-shaped ring by the space-time distortion caused by the massive orange galaxies in the foreground. Image credits: NASA/ESA/Hubble.
The newly identified ultramassive black hole resides in the Space Horseshoe Gravity Lens System, which is among the largest known strong gravitational lenses.
This lens system, referred to as SDSS J1148+1930 and CSWA 1, lies 5 billion light years away in the Leo constellation.
“Typically, mass measurements of black holes in such distant systems can only be done when they are active,” remarks PhD Carlos Melo from Universidade Federativa do Rio Grande do Sul.
“However, these estimates based on accretion are often fraught with significant uncertainty.”
“Our method integrates strong gravitational lenses with stellar dynamics to yield more direct and reliable measurements, even in these distant systems.”
“The black holes we discovered rank among the top 10 largest black holes known, possibly even the largest,” adds Professor Thomas Collett from the University of Portsmouth.
“Most existing mass measurements for black holes are indirect and come with high uncertainties, so I can’t definitively say which one is the largest. But our new method provides much greater confidence in the mass of this black hole.”
The research team employed a synergy of gravitational lenses and stellar motions to locate the space horseshoe-shaped black holes.
This technique is considered the gold standard for black hole mass measurement, but galaxies are often too small in the sky to resolve areas containing these supermassive black holes, limiting effectiveness in distant contexts.
“The inclusion of a gravitational lens allowed us to explore further into the cosmos,” noted Professor Collett.
“We observed the influence of a black hole in two specific ways: it alters the path light takes as it navigates through the black hole, and stars in the galaxy’s core are observed moving incredibly fast (almost 400 km/s).”
“By correlating these two measurements, we can confidently establish the black hole’s authenticity.”
“This discovery pertains to a ‘dormant’ black hole, which does not actively consume material at the time of observation,” Melo explained.
“The detection relied solely on its immense gravitational pull and its effects on surrounding matter.”
“What’s particularly thrilling is that this method enables us to identify and gauge the masses of these elusive supermassive black holes across the universe, even when they lie completely dormant.”
An intriguing aspect of the Cosmic Horseshoe system is that its host galaxy is classified as a fossil group.
Fossil groups represent the final phase of the universe’s most colossal gravitationally-bound structures, formed from the collapse of a single, large galaxy devoid of bright companions.
“It is plausible that the supermassive black holes originally found in the companion galaxy contributed to the formation of the supermassive black holes we have identified,” Professor Collett noted.
“Thus, we can observe both the conclusion of galaxy formation and the cessation of black hole growth.”
The team’s paper was published today in Monthly Notices of the Royal Astronomical Society.
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Carlos R Melo-Carneiro et al. 2025. We are pleased to announce the discovery of a 36 billion solar-mass black hole at the core of the Cosmic Horseshoe Gravity Lens. MNRAS 541(4): 2853-2871; doi: 10.1093/mnras/staf1036
Recent findings suggest that captive parrots display dancing behaviors in response to music, which involves complex cognitive functions such as imitation, vocal learning, and rhythm. This dance behavior in parrots might be indicative of a positive welfare state, increasing the likelihood of using music as an environmental enrichment tool. In a recent study, researchers examined the dance movements of cockatoos through online video analysis and playback experiments, identifying a total of 30 distinct dance moves from 45 videos featuring five different cockatoo species. Notably, 17 of these moves had not been previously documented in scientific literature.
Cockatoos have been informally observed dancing to music in captivity.
This dance results from intricate brain processes, including imitation, learning, synchronization, and rhythmic movement.
While spontaneous dance has been exclusively reported in humans and parrots in sync with music, some wild birds also exhibit rhythmic movements during courtship displays.
However, it remains unclear what motivates these captive birds to dance.
In this new study, Dr. Natasha Loveke from Charles Sturt University and her team analyzed 45 videos shared on social media platforms like YouTube, Facebook, TikTok, and Instagram.
From their analysis, they identified a total of 30 unique dance movements, 17 of which had not been documented before.
Among these newly recognized moves were headbanging, side steps, and body rolls.
The researchers noted that some birds also executed their own unique dance sequences, often blending various movements creatively.
Interestingly, closely related species did not exhibit more similar dance styles, while a diverse range of dance moves appeared among the top 10 unique patterns.
Illustrations of the 10 most common recorded dance movements by Cockatoos. Image credit: Lubke et al. , doi: 10.1371/journal.pone.0328487.
Following this, the scientists investigated dance behavior in six cockatoos, representing three species, housed at Wagga Wagga Zoo in Australia.
They played music specifically designed for birds, as well as audio podcasts, and found that all birds engaged in dance movements, regardless of the type of audio played.
The study revealed that dancing behavior was present in at least 10 out of 21 cockatoos studied.
Cockatoos seem to display a broad repertoire of dance moves, many of which resemble the courtship rituals observed in wild parrots.
This suggests that their dance abilities may have evolved from courtship behaviors directed towards their human caretakers.
“By analyzing the dance behavior of cockatoos from 45 videos and at Wagga Wagga Zoo and Aviary, we demonstrated that dancing is more prevalent in cockatoos than previously recognized, with 10 out of the 21 cockatoos exhibiting such behavior,” stated Loveke.
“My analysis demonstrates that the spectrum of dances is much more complex and diverse than has been understood, documenting 30 different movements across multiple birds, with an additional 17 seen in other birds.”
“This study supports the notion of positive emotional states in birds and highlights dancing behavior as an effective model for exploring parrot emotions. It also implies that playing music for parrots may positively influence their welfare and serve as an excellent avenue for enhancing their lives in captivity.”
“The parallels to human dance make it challenging to overlook the development of cognitive and emotional processes in parrots, suggesting that musical interaction could enhance their wellbeing.”
“Further research is needed to explore whether music can stimulate dancing behavior in captive birds, making it a potential form of environmental enrichment.”
The findings are detailed in a study published in the journal PLOS 1.
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N. Loveke et al. 2025. Dance behavior in Cockatoos: impact on cognitive processes and welfare. PLOS 1 20(8): E0328487; doi: 10.1371/journal.pone.0328487
Recent analysis of new images from the NASA/ESA Hubble Space Telescope reveals that the nucleus of 3i/Atlas measures between 320 m (1,000 ft) and 5.6 km (3.5 miles).
Hubble captured this image of 3i/Atlas, which was located 446 million km (277 million miles) from Earth on July 21, 2025. Image credits: NASA/ESA/David Jewitt, UCLA/Joseph Depasquale, Stsci.
3i/Atlas was discovered on July 1, 2025, by the Asteroid Land Impact Trastor Alt System (ATLAS) funded by NASA.
Its orbit is the most dynamically extreme among recorded solar system objects.
New observations from Hubble have provided astronomers with a more precise estimation of the comet’s solid icy nucleus size.
“The maximum diameter of the nucleus is 5.6 km, but it averages around 320 m,” stated David Jewitt, an astronomer from UCLA, along with his colleagues.
“Hubble’s images offer tighter constraints on the nucleus’s size compared to earlier ground-based measurements, although the solid core of the comet is not currently visible directly even with Hubble.”
“Data from other NASA missions, like Webb, TESS, Neil Gehrels Swift Observatory, and WM Keck Observatory, will further enhance our understanding of comets, including their chemical composition.”
Hubble also detected indications of dust plumes ejected from the sun-warmed side of the comet, along with dust tails drifting away from the nucleus.
The new findings indicate a dust loss velocity that aligns with the first comet observed at roughly 480 million km (300 million miles) from the Sun.
This behavior closely resembles the characteristics of a previously seen sun-bound comet observed within our solar system.
A notable difference is that this interstellar visitor originates from planetary systems beyond our Milky Way galaxy.
3i/Atlas speeds through the solar system at an astonishing rate of 209,000 km (130,000 miles) per hour, marking the highest speed ever recorded for visitors to our solar system.
This remarkable velocity indicates that comets have been traversing interstellar space for billions of years.
The gravitational pull from countless stars and nebulae has contributed to its increased speed.
The longer 3i/Atlas journeys through space, the faster it moves.
“No one knows the origin of this comet; it’s like catching a glimpse of a bullet for a thousandth of a second,” Dr. Jewitt observed.
“You can’t accurately trace that back to determine where you commenced your path.”
“This latest interstellar traveler represents a previously undetected group of objects, enriching the narrative that has gradually unfolded.”
“This achievement is now possible due to the powerful Sky Survey capability we previously lacked. We’ve reached a new milestone.”
The administration under Trump intends to reverse most of the cuts made to the National Weather Service earlier this year aimed at improving government efficiency.
According to Mike Flood of R-Neb, Eric Sorensen, D-Ill., along with the National Oceanic and Atmospheric Administration, has received approval to fill 450 roles, which include meteorologists, hydrologists, and radar engineers for the National Weather Service.
This decision is part of an initiative to rehire for these crucial roles. CNN was the first to report that following a summer filled with severe and deadly weather, scrutiny arose over the NWS cuts, prompting bipartisan calls for their cancellation.
An official cited by NBC News noted that NWS staff were involved during the Texas Flood that resulted in over 130 fatalities. This has spurred agencies to rehire hundreds of essential personnel, raising concerns about the reliability of NWS forecasts. This information came from a source who spoke on the condition of anonymity due to restrictions on discussing HR matters.
Both Sorensen and Flood expressed their satisfaction with this “postponed news” in a joint statement. They co-hosted discussions around layoffs and early retirements, focusing on safeguarding National Weather Service employees while reclassifying their roles as vital to public safety. Although the bill was presented in the House of Representatives, it has yet to be voted on.
“For months, Congressman and I have been advocating for the necessary support for NOAA and NWS employees who are facing staff reductions,” stated Sorensen in a press release. “The lack of skilled positions has forced NWS offices nationwide to cancel weather balloon launches, abandon overnight staffing, and overburden the remaining meteorologists.
Rep. Mark Alford from R-Mo. also expressed support for the initiative.
A spokesperson for the National Weather Service declined to provide comments.
Officials from NOAA, who were not authorized to speak publicly, informed NBC News that filling the hundreds of vacant positions would take several months. Currently, USAJOBS.GOV lists only nine open roles across NOAA, the parent organization of the National Weather Service.
The NOAA and NWS were not impacted by the controversial cuts implemented during the early months of the second Trump administration, which included job terminations, rehiring, and restructuring of certain employees. The Commerce Department and NOAA dismissed over 600 probationary staff on February 27th, encompassing hurricane hunters, meteorologists, and storm modelers.
Five former directors of the National Weather Service have cautioned that a shortage of staff could cause “unnecessary loss of life.”
Feedback delivers the latest in science and technology news, providing insights into what captivates readers. Email Feedback@newscientist.com to share items you think might intrigue our audience.
Cleaning Chronicles
While at times seemingly unproductive, Feedback finds a way to engage with what may appear as idleness. Recently, we spent more time than expected watching online videos, and here’s what we gleaned.
Diving into the depths of YouTube, we ventured down a path filled with carpet and rug cleaning videos. This might sound dull, yet one company’s use of the R2-Clean2 and Dirt Reynolds intrigued us.
Strangely enough, we found a soothing pleasure in watching dirt layers being lifted and the rug’s patterns emerge once again. Time faded away. The stress dissipated. Feedback embraced a Zen-like state; our minds were clear and receptive. There was no demand, no stress, just the simple act of cleaning a rug.
Once we snapped back to reality, we observed the fascinating interplay between humans and technology. Amidst the myriad cleaning YouTubers, there’s an army dedicated to capturing the messiest rugs in the most dramatic ways possible. After all, if your rug-cleaning video doesn’t attract millions of views, the revenue won’t match the effort.
Consequently, it’s tough to find a video that merely shows a dirty rug. A typical cleaning video appears as if a rug was pulled from a muddy abyss, taken over by fungi, and processed through the digestive system of a stray animal. Sometimes, maggots make an appearance. One can watch hours of labor spent with buckets and sprays to restore cleanliness.
This quaint subculture reflects our society: even mundane tasks like rug cleaning become exaggerated to the extreme, driven not by their inherent value but by the quest for attention and profit.
Enough philosophy. I certainly don’t plan on watching someone speedrun Super Mario Odyssey.
Rumblings
Alongside many readers, Feedback grapples with the ongoing controversies surrounding bestselling author Raynor Winn. Her book Salt Path and other works on extensive walking journeys faced scrutiny after Observer published accusations that she misled the public regarding her and her husband’s period of homelessness, as well as his health during their trekking on England’s southwest coast. Winn denies any wrongdoing.
This revelation surfaced shortly after the film adaptation of Salt Path caused embarrassment for all parties involved, but in the realm of Feedback, the most shocking realization was that Winn’s real name is Sally Walker.
Literary Innovations
In July, Feedback addressed the potential applications of generative AI tools like ChatGPT to simplify challenging literary texts. I’ve observed soft rewrites of renowned opening lines that retain their essence. This resonated with many of you.
Eric Bignell highlighted Macbeth’s poignant soliloquy from Act 5, scene 5: “Tomorrow and tomorrow, tomorrow / creeping up at a daily pace from day to day / to the final syllable of recorded time. I’m stupid now, full of sound and rage / meaning nothing.” Eric simplified it through ChatGPT to: “Life is short, meaningless and full of noise.”
Numerous readers contributed their suggestions on how AI might reinterpret famous passages. For instance, consider George Orwell’s foreboding opener in 1984: “It was a bright, cold day in April, and the clock struck thirteen.” David Aldred aptly proposed, “It was a well-defined afternoon on a bright, cold April day.” Nothing essential was lost!
The favorite rewrites included the opening line of Charles Dickens’ A Tale of Two Cities: “It was the best of times, it was the worst of times…” Ian Glendon comically suggested a literal version: “When I bought it, the watch was fine, but it doesn’t work anymore.” However, Simon Byrd, David Strachan, and Rod Newberry each proposed a variation with the same essence: “On average, it was fine.”
Simon even came up with an alternative to Edward Bulwer-Lytton’s infamous first line from Paul Clifford: “It was a dark and stormy night,” suggesting the creative twist: “Welcome to Scotland.”
Ultimately, Stuart Bell concluded with a bold suggestion to loosen AI’s constraints when engaging with James Joyce’s famously perplexing text Ulysses. Not due to enhancement, but rather because the work should “break AI, or at the very least, induce a headache.”
Have thoughts on Feedback?
Feel free to reach out by emailing feedback@newscientist.com. Remember to include your home address. You can find this week’s feedback and past editions on our website.
In 2013, the World Health Organization (WHO) established an ambitious goal: to reduce global physical inactivity by 10% compared to 2010 levels by 2025. Now, the deadline has arrived, and despite initiatives aimed at leveraging the excitement of multiple Olympic Games, activity levels have not increased.
The latest data indicates that as of 2022, 31% of adults worldwide fail to meet physical activity guidelines, marking a rise from 26% in 2010. The situation is even graver among teens, with an alarming 81% not engaging in sufficient physical activity. We’re falling short of our targets.
What went wrong? Various factors, from public health policies to urban design, can be scrutinized regarding current strategies. Nevertheless, some experts are advocating for a more fundamental reassessment. Have we been misrepresenting the promotion of physical activity all along?
For years, public health campaigns have heavily relied on the narrative that “exercise is medicine” to encourage physical activity. This notion is familiar: engage in physical activity to combat illnesses like diabetes or cardiovascular diseases. This message is underpinned by strong scientific evidence, leading to the belief that health incentives are the most compelling motivation.
Yet, Benjamin Rigby, a public health researcher from Newcastle University, and his colleagues recently argued in an opinion piece that framing physical activity solely as a health preventive measure oversimplifies the myriad reasons individuals choose to be active. “The reality is people engage in movement for many reasons unrelated to avoiding illness,” Rigby states. “We play, laugh, explore, dance, and feel proud of ourselves. Ultimately, it’s about enjoyment and well-being.” Eliminating these positive motivators from health messaging may contribute to the lack of engagement.
Elsewhere, research continues to support the concept of shifting focus away from health-centric narratives. A study by University of Edinburgh researchers analyzed 123 public messages about physical activity, concluding that health concerns are not always effective motivators for prompting people to get active. The most impactful messages highlight the short-term rewards of proactive engagement rather than threats of future illness.
What if campaign messaging centered on the immediate benefits of physical activity? Some researchers recommend phrasing such as “small movements to enhance your mood,” focusing on mental health, or promoting “physical activity as an opportunity to connect with others.” Motivation matters.
Strong evidence shows individuals are more likely to maintain activity when it is enjoyable. Fun is associated with young people who regularly participate in sports. Remember Pokemon GO? That trend inspired avid users to walk an additional 1,473 steps daily on average, fueled by the excitement of “catching them all.” Given this evidence, why do public health messages overlook fun-focused motivations?
Sticking to health-oriented narratives appeals strongly to institutions. Their effects can be quantified, aligning neatly with the formal tone expected from such messages. However, with the 2030 target of reducing physical inactivity by 15% from 2010 levels approaching, now is the time for transformative change. It’s crucial to cease prescribing physical activity as a daunting chore and start presenting it as an opportunity for enjoyment, exploration, and connection.
Dawn Teh is a freelance health writer based in Australia.
Despite significant changes since the 1950s, women continue to shoulder more domestic responsibilities
ClassicStock/Alamy
Earn money Melissa Hogenboom (Canongate Books, August 14th, UK)
Why do individuals without jobs feel uplifted when their partners are unemployed? How do women develop empathy as they mature? Why does a disordered room appear untidy when it belongs to Jennifer, but not John? These pressing issues are explored by Melissa Hogenboom in her book Earn money: and other power imbalances that affect your life. The book uncovers the hidden power dynamics and subconscious cognitive biases that influence our behaviors and choices.
This narrative goes beyond individual actions; it serves as a well-researched examination of how stereotypes and unseen disparities shape everything from household chores to career advancement.
Fair warning: it may provoke anger—especially regarding household responsibilities. Studies indicate that in heterosexual relationships, domestic duties are typically assumed by women unless addressed directly. Women tend to take on more odd jobs, even when they log more hours at work. Hogenboom notes that some studies imply this might be an unconscious “compensation” strategy for unconventional family dynamics.
Gender biases begin early in life. Mothers engage more extensively during pregnancy, whereas fathers share more about their feelings with daughters and their achievements with sons. Studies have found that fathers react more deeply to their daughters’ emotions.
This reinforces the notion that women are inherently nurturing or empathetic—a stereotype that influences various realms, from parenting to leadership roles. In fact, while empathy can be partially genetic, there are no innate differences between genders.
When societal pressures are lifted, a new truth may surface. As highlighted in a case study of same-sex male couples, “The assumption that if parents remain at home without societal pressures, they will naturally share childcare responsibilities is quite misguided,” says one participant. “If my partner had suggested returning to work within a fortnight, I would have been furious.”
Hogenboom also points out that mothers in same-sex relationships may encounter fewer career obstacles after maternity leave compared to those in heterosexual partnerships, indicating that maternity alone does not dictate such penalties.
The myth of mutuality deludes couples that they have achieved a good balance of labor.
The book sheds light on the intangible forces predominantly managed by men: hidden inequalities often perceived as normal. At times, Hogenboom asserts, “Women, here’s the evidence you need to justify your exhaustion.”
Notably, the persistent challenges faced by men who seek to address these power disparities are highlighted. A study referenced by Hogenboom found that men requesting part-time roles often face skepticism more than women and encounter taunts like “Where’s your mom?” They often struggle to be taken seriously and may be viewed as less committed, complicating their social dynamics within parenting communities.
Couples who believe they have achieved equality might be surprised by how Hogenboom reveals these unseen dynamics of authority. She argues that systematic inequalities represent a dominant form of power in relationships, often overlooked—even by the couples who experience them.
The perception of mutuality can lead couples to falsely believe they maintain an even distribution of responsibilities. However, they may be deceiving themselves if they don’t consider whose needs are genuinely met and who does the work. For instance, your partner might “cook all the meals,” but have you handled the meal planning, grocery shopping, cleaning, and budgeting?
Fortunately, Hogenboom offers actionable advice. If you find yourself overwhelmed, she suggests handling tasks comprehensively: “It eliminates hidden burdens when ownership of the entire task is taken.”
Her recommendations provide a much-needed relief amidst the wealth of data presented. While authoritative and insightful, Hogenboom’s writing style leaves little room for reflection.
However, moments of reflection are necessary. Earn money constructs a convincing argument to recognize the influence of concealed power dynamics and informs how to address them. This leads to fairer relationships and more successful careers, potentially saving marriages.
Helen Thomson is an author based in London.
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Scientists have discovered an extraordinarily massive black hole billions of light years away
Igorzh/Shutterstock
A colossal black hole, located in a galaxy five billion light years away, boasts a mass over 10,000 times greater than the ultra-massive black hole found at the center of the Milky Way, and about 360 times greater than that of our Sun.
“This is likely the largest black hole in the universe,” states Thomas Collett from the University of Portsmouth, UK. “It’s equivalent to the mass of an entire small galaxy condensed into one singularity.”
This supermassive black hole is situated approximately five billion light years away, residing in one of the most well-known galaxies, referred to as the Space Horseshoe. Space Horseshoes serve as the largest known galaxy lenses, capable of bending light from objects situated behind them due to their immense gravitational forces. Previous research indicated that such enormous black holes might exist in the center of this galaxy, though pinpointing their exact mass has proven challenging for scientists.
To accurately determine the mass of the black hole, Collett and his team analyzed the orbital velocity of a nearby star, which directly correlates to the black hole’s mass. Additionally, they assessed how much light is distorted by the gravitational influence of the black hole, a phenomenon known as gravitational lensing. “Combining these two measurements allowed us to yield a highly confident estimation,” says Collett.
The mass of this black hole is remarkably large, aligning with Collett’s team’s prior investigations. Their research focuses on mapping the distribution of dark matter in the Galaxy, utilizing data gathered from observed light. They found that a successful model was only achievable with the inclusion of a supermassive black hole at the center of the universe’s horseshoe.
“The only time I started to get a good model was when I began considering black holes with incredibly high masses,” remarks Collett.
The horseshoe galaxy is theorized to be a ‘fossil group’ galaxy. This type of stellar system has absorbed all of its neighboring galaxies, a behavior that helps clarify the phenomenon of its black hole’s formidable size.
Yet, one enigmatic aspect persists. The black hole appears to have ceased growing and is currently dormant. “For it to expand, it must have been connected to the entire universe at some stage. It’s curious that it’s inactive at this moment,” Collett adds. “A process must have contributed to the black hole’s growth before it eventually plateaued.”
Stephanie Eisenbarth and Adam Williams prepare peanuts for allergy research in their lab
Northwestern University
Research indicates that common asthma treatments may offer protection against anaphylaxis, a severe allergic reaction. The drug Zileuton, traditionally used for asthma, is now being considered for individuals facing serious food allergies.
Despite the prevalence of food allergies, it can be challenging to foresee the risk of anaphylaxis for an individual. Scientists are investigating why some individuals with positive food allergen tests do not show symptoms, while others have severe, potentially deadly reactions.
“Our aim is to discover methods to help individuals with symptomatic food allergies manage their reactions to allergens,” states Stephanie Eisenbarth from Northwestern University, Illinois.
Eisenbarth and her research team anticipated that mice exposed to peanuts would experience anaphylaxis. They administered a single oral dose of Zileuton to a group of 5-10 mice sensitized to peanut allergens approximately one hour prior to feeding them peanut extract. The control group did not receive any medication. Observations revealed that almost all Zileuton-treated mice showed no symptoms of anaphylaxis, whereas the control group exhibited clear signs of it.
Most dietary proteins are usually broken down, but some can be actively absorbed through the intestines and enter the bloodstream directly. In individuals with severe allergies, these proteins can trigger immune responses, leading to anaphylaxis.
During allergic reactions, the body releases chemicals known as leukotrienes. The researchers found that leukotrienes play a role in the number of intact proteins that penetrate the intestine. They also identified a gene called DPEP1 that is crucial in regulating leukotriene levels.
One significant action of Zileuton is inhibiting the enzyme five lipoxygenase, essential for leukotriene production. Administering this drug to mice lowered leukotriene levels, while DPEP1 also suppressed remaining leukotrienes, preventing allergen absorption and halting anaphylaxis in susceptible mice. A single dose of Zileuton cut the anaphylaxis rate by 95%.
“We can differentiate between mice that respond to food allergens and those that do not. We are now evaluating whether the same asthma medications can limit allergen absorption in the intestines of people with food allergies.”
Jorge Emiliano Gomez Medellin from the University of Chicago suggests that these straightforward tablets might significantly alleviate the consequences of accidental allergen exposure. He added that while Zileuton could potentially inhibit the absorption of food allergens, it won’t alter an individual’s underlying sensitivity over time.
“Nonetheless, Zileuton could be a valuable tool in combating food allergies,” he concludes.
Accelerator tunnels at the European XFEL, where atomic motion is meticulously studied.
Xfel/Heiner Mueller-Elsner
In a groundbreaking achievement, a highly advanced X-ray laser has successfully unveiled the slight atomic movements of molecules that are typically expected to remain stationary.
Quantum physics thrives on uncertainty. Heisenberg’s uncertainty principle prevents scientists from simultaneously and accurately determining a particle’s position and momentum, indicating that quantum particles can never be fully at rest. Instead, atoms are perpetually in motion, albeit minuscule.
Nonetheless, measuring this subtle Heisenberg wiggle is challenging in complex molecules where atoms exhibit various motion patterns. Recently, Till Janke from the XFEL facility, along with his team, successfully captured this phenomenon using molecules composed of 11 atoms, including carbon, hydrogen, nitrogen, and iodine.
“This was my first experiment utilizing an extraordinary tool,” Janke remarked. The pivotal device was the “laser beast,” which bombarded molecules with intense bursts of X-rays. Although the pulse duration was only a quarter of a second, it was a million times brighter than conventional medical X-rays.
Each X-ray pulse stripped electrons from the molecule, causing the atoms to become positively charged and repel explosively from each other. By analyzing the aftermath of these explosions, scientists were able to reconstruct quantum variations of atoms in detail at their lowest energy states.
The team discovered that Heisenberg’s wiggle appears to follow a synchronized pattern in the movements of specific atoms. While this wasn’t unexpected based on the molecular structure, the researchers were astonished by the precision of their measurements, as noted by team member Ludger Inhester at German electronic synchrotrons.
Next, the researchers aim to explore how quantum fluctuations influence molecular behavior during chemical reactions. They also intend to adapt their methodology to study electron movements.
“We are exploring ways to expand our findings to larger systems. There are numerous avenues for future research,” shared team member Rebecca Bol from European XFEL.
“It can be hard to comprehend the vastness involved…”
Science Photo Library/Alamy
Many of us can relate to concerns about inflation. The rising cost of living weighs heavily on our minds, and we often scrutinize what political leaders are doing in response. Yet it’s essential to recognize the terminology issues present in physics, especially since inflation carries a vastly different meaning in this context.
In cosmology, space inflation refers to a model that elucidates why our universe appears so expansive. This theory posits that space-time underwent rapid expansion for a brief duration—around one second—leading to regions of the universe that are now uncommunicative but once were connected.
Understanding such immense scales can be a challenge. How do we truly grasp these vast distances that exceed our everyday experiences? Last month’s column tackled this concept by addressing distance measurement techniques. Yet, this inquiry itself unfolds layers of complexity.
In that discussion, I highlighted how Redshift serves as a crucial tool for gauging distances in space. Imagine a series of balloons being inflated; as they expand, their peaks and troughs elongate. This phenomenon mirrors how light behaves as it travels across the fabric of space-time. The light stretches, increasing its wavelength.
This shift in light wavelengths enables distance calculation. By measuring the wavelength of light from a distant object and comparing it to our observations, we can discern how much space-time has expanded between our position and the observable objects. Such Redshift measurements are consistently corroborated by both astronomical observations and lab experiments.
However, deeper questions linger. From a quantum standpoint, light’s wavelength is tied to its energy content. The stretching of light reduces its energy, resulting in a redshift effect. This phenomenon isn’t merely a nuisance; rather, it presents intriguing insights about quantum mechanics within cosmological discussions.
Energy conservation is a fundamental concept in everyday physics, but even cosmic principles can be bent or broken
What’s the dilemma? We prefer consistent principles across physics domains. A core tenet of everyday physics suggests that energy cannot be created or destroyed, only transformed. Thus, if we apply energy conservation to redshifted light, we face the question: where does the lost energy of light go? A curious reader posed this very question.
The response may be surprising. While energy conservation remains a guiding principle, it seems the cosmic realm can, at times, operate differently. Albert Einstein’s theory of general relativity plays a pivotal role here. Though widely recognized for its insights into the fabric of cosmic time and curvature, it also reveals how space-time itself may expand.
A unique aspect of general relativity is that energy conservation isn’t universally applicable. In essence, as light loses energy through redshift, this loss is not considered significant in the grand scheme. Energy doesn’t necessarily have to ‘go’ anywhere; it can merely dissipate.
That’s one way to frame it. Alternatively, we could also address the energy associated with gravitational fields. Historically, conflating these two perspectives has sparked considerable debate. Some argue they represent two facets of the same reality.
Personally, I contend that the essence of energy remains ambiguous. It’s challenging to delineate, yet it’s palpable in connection to physical entities like particles and stars. However, when discussing the energy entwined with space-time curvature, clarity dissolves. Where exactly is this energy located within the continuum of space and time? How concentrated is it at specific junctures? These inquiries reflect the complexities of inflation!
Thus, I find myself aligning with those who suggest that strict energy conservation may not be the most useful concept. What stands clear is the interdependence of space-time curvature and energy related to matter. Space-time’s dynamics guide matter’s trajectory, while matter’s mass (akin to energy) influences how space-time will behave.
Chanda’s Week
What I’m reading
Riley Black When the Earth was Green: The Epic of Plants, Animals, and Evolution beautiful.
What I’m watching
I’m re-watching Star Trek: A Strange New World from the start.
What I’m working on
We are pondering the Newathena X-Ray Observatory to deepen our understanding of neutron star interiors.
Chanda Prescod-Weinstein is an associate professor of physics and astronomy at the University of New Hampshire. She is the author of Cosmos with Disabilities and the forthcoming book, “Edges of Space-Time: Particles, Poetry, and the Universe’s Dreamscape.”
Laughter therapy is no laughing matter. Structured activities designed to elicit joy, such as laughter yoga and hospital clowns, appear to significantly lower anxiety levels and enhance life satisfaction.
Laughing, a behavior observed in various animal species, is believed to boost social bonds and may assist infants in developing their self-identity. Research indicates that interventions involving clowns lead to shorter hospital stays for children.
Yelsynyn-Mauricio Porras-Jiménez from Jaen University in Spain aims to enhance people’s holistic well-being. “It’s not solely about physical health; mental and emotional aspects are crucial,” he notes. “I discovered laughter therapy while exploring ways to implement holistic care effectively.”
Porras-Jiménez and his team performed a meta-analysis of 33 studies from the United States, Europe, Asia, and the Middle East. The participants included nursing students as well as individuals receiving terminal care, undergoing surgeries, in vitro fertilization, or those grappling with depression or burnout.
Each study divided participants into two groups. One group engaged in various laughter therapy activities, such as laughter yoga, clown visits, watching entertaining films, or joining guided laughter sessions. The second group served as a control, maintaining standard care or receiving no interventions.
Results demonstrated a consistent link between laughter therapy and decreased anxiety, alongside heightened life satisfaction. In one measurement of anxiety on a scale of 0-100, the control group’s average score was around 60, while the laughter therapy group scored 8-10 points lower. Regarding life satisfaction, the control group’s score averaged 50, with the laughter therapy group scoring 10-12 points higher.
However, participants were aware they were partaking in laughter therapy, which raises questions about potential placebo effects, according to Sophie Scott from University College London.
Nonetheless, laughter triggers physiological changes correlated with reduced anxiety, she adds. Research shows lowered cortisol levels, a stress hormone, and increased endorphins, neurotransmitters that foster feelings of happiness.
“It’s challenging to determine if the benefits arise from laughter itself or from the social environment that encourages comfortable laughter,” Scott remarks. “It seems to be a combination of both.”
Conceptual image of a spacecraft navigating near a black hole
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An interstellar spacecraft designed to explore a black hole could transmit data back to Earth in roughly 100 years.
Cosimo Bambi from the University of Hudang in Shanghai has devised a framework for such missions utilizing technologies projected to be available within the next 20 to 30 years.
By approaching a black hole, we can validate Albert Einstein’s theory of general relativity and uncover the behavior of fundamental physical constants in extreme gravitational fields.
The nearest well-known black hole is approximately 1500 light years away. However, within our Milky Way galaxy, there is estimated to be one black hole for every 100 ordinary stars. This suggests a significant likelihood of locating a black hole within 20 to 25 light years, says Bambi.
Identifying a black hole poses challenges, as these entities do not emit light; astronomers must infer their existence by observing their gravitational influence on surrounding stars.
Reaching a black hole within 25 light years of our solar system will require advanced technological developments, but according to Bambi, “it’s achievable.” Within a century, spacecraft could be minuscule, featuring sails that cover 10 square meters and propelled by light. Such crafts could theoretically accelerate to about one-third the speed of light through pulses from high-powered lasers.
“Currently, light sails and nanocrafts appear to be the most viable options for interstellar travel since they can achieve speeds approaching that of light,” Bambi states. However, he estimates that the power required for an effective laser system could reach approximately 1 trillion euros today.
To validate predictions concerning general relativity, it may be necessary to dispatch two miniature spacecraft or release a secondary probe as the primary nanocraft nears a black hole. The secondary craft would venture closer to the black hole, while the primary craft remains at a safe distance, gathering data and relaying it back to Earth.
Gerlan Lewis from the University of Sydney acknowledges that while the challenges are significant, the proposal is far from impossible.
However, the extensive time frame for the proposed mission introduces a possibility that nanocrafts could become outdated by the time they reach their destination. Lewis remarks, “Considering 100 years of technological advancement, can we truly predict what kind of propulsion system might exist then?”
“A mission to black holes would likely resemble this proposal, akin to how we might imagine the advancements of the 20th century, 500 years in the past,” he adds.
Lewis points out that Bambi’s plans do not address how to decelerate the nanocrafts upon arrival at the black hole. Bambi suggests that the simplest approach is to not slow the vehicle at all, but rather deploy a probe to transmit data back to the main craft for Earth delivery.
“In such scenarios, the probes won’t stop around the black hole; they will merely pass by. Some may be drawn into the black hole, which should provide sufficient data to analyze the black hole’s gravitational field,” he explains.
Sam Baron at the University of Melbourne describes Bambi’s framework as one of the most “speculative” research papers he has encountered, but notes that a century ago, the construction of the Large Hadron Collider would have seemed like science fiction.
“I believe utilizing small-scale technologies is likely the way forward,” he observes. “The question remains whether we can indeed engineer something that meets all the criteria outlined in this paper.”
Bambi emphasizes that human beings cannot personally venture to black holes due to the extreme accelerative forces—around 10,000 g—that nanocraft would need to endure. “Unless we discover a wormhole in the fabric of space-time to provide a shortcut,” he notes.
“We really need a nearby wormhole like in the movie Interstellar” to facilitate human missions,” he concludes. “Unfortunately, my assessment is that wormholes are purely theoretical at this point.”
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Cut marks on the foot bone from El Mirador cave, Spain
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The discovery of human remains in caves in northern Spain indicates that Neolithic people may have resorted to cannibalism after battles.
Francesc Marginedas from the Catalan Institute of Human Paleoecology and Social Evolution (IPHES) in Tarragona, along with his team, examined fragments from 650 human remains found in El Mirador cave on Mount Atapuerca. These remains date back approximately 5,700 years and belong to 11 individuals.
All examined bones displayed evidence that these individuals had been consumed by other humans. Some exhibited chop markings made by a stone tool, while others showed translucent portions with gently rounded edges. Some of the long bones were fractured open with stones to access the bone marrow, and smaller bones like metatarsals and ribs had clear human bite marks.
This research supports the notion that cannibalistic practices were more prevalent in human history than previously believed.
El Mirador marks at least the fifth significant site in Spain with notable evidence of cannibalism during the Neolithic era, a shift period from foraging to agriculture, according to Margida. “There’s a growing understanding that such behavior was more frequent than we anticipated.”
The motives behind these cannibalistic acts remain unclear. Some archaeological sites show skull cups indicating a ritualistic aspect to cannibalism, while others hint at survival strategies during dire circumstances.
However, Marsidas and his team propose that the findings at El Mirador suggest these acts were linked to warfare. There was a significant amount of animal remains, and no signs of nutritional stress among the humans involved, indicating this early agricultural community was not struggling with food scarcity. Their findings offer no indication of ritualistic behavior, as human bones were found alongside animal remains.
The ages of the individuals ranged from under seven to over fifty, implying that an entire family unit may have been lost to conflict. Radiocarbon dating indicated that all 11 individuals were killed and consumed within a few days.
This evidence reflects patterns of conflict and cannibalism, which have also been noted at two other Neolithic sites: the Von Bregore Caves in France and Helxheim in Germany. This period appears marked by instability and violence due to community clashes with neighboring groups and newcomers.
While Margida and his colleagues are uncertain about the reasons behind these cannibalistic practices, historical ethnographic studies suggest that such acts during warfare can serve as a method of “ultimate exclusion.” “We believe that one group attacking and consuming another serves as a humiliating statement,” states Merseydus.
“The thoroughness of the body’s treatment and consumption is remarkable.” Paul Pettitt from Durham University, UK, comments, “The aggressive nature shown in these artifacts, regardless of whether the consumed were relatives or adversaries, mirrors a dehumanization process during consumption.”
Sylvia Bello from the Museum of Natural History in London concurs that this evidence of death likely ties back to conflicts but remains skeptical about the notion of consumption as humiliation. She suggests that cannibalism may stem from aggression and animosity rather than ritualized farewell practices, implying a more complex interpretation. “It could carry ritual significance, even amid warfare,” she asserts.
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Although they are about half the size of male gorillas, female gorillas can surpass their male counterparts in competitions for status and resources. A recent study highlights this intriguing finding.
This discovery upends the long-held belief that gorilla society is primarily patriarchal, emphasizing male dominance over females, and sheds light on the origins of human gender relations.
Researchers from the German Institute of Evolutionary Anthropology and the University of Torque in Finland examined 25 years of data gathered from observations of gorilla behaviors across four distinct groups.
Wild mountain gorillas have often been viewed as a prime example of strict male dominance in primate societies, largely due to the size disparity between males and females.
It is true that gorilla society has a hierarchical structure, with one alpha male reigning at the top, while other gorillas vie for status beneath him.
However, this new research suggests that gorilla hierarchies may be much more gender-equitable than previously thought.
“Female gorillas frequently outperform males,” stated author Reed Dr. Nikos Smitt, a researcher at Max Planck and Turku, in an interview with BBC Science Focus. “This is crucial for understanding power dynamics; it’s not solely about size and strength.”
Indeed, 88% of female gorillas exhibited superior performance compared to at least one adult male in groups with multiple males, particularly against those who were young or old.
Additionally, when female gorillas faced off against males other than the alpha, they won more than a quarter of the time, even when significantly outmatched in size.
According to Dr. Martha Robbins, Director of the Bwindi Mountain Gorilla Research Project, this success is likely linked to the relationships between these high-ranking females and their alpha males. BBC Science Focus reported her insights: “Gorillas are aware of their group’s social status and dynamics. Though non-alpha males are typically larger and stronger, they often choose to hold back to avoid confrontations with alpha males. It’s advantageous for them to be compliant in a group setting.”
This image illustrates the size differences between women with toddlers in the non-invasive national park of Bwindi, Uganda, and male mountain gorillas – Credit: Marthalobins
Researchers have also found that the stakes in these conflicts often involve priority access to food, another finding that challenges previous assumptions.
Earlier studies suggested that female gorillas exclusively competed for food among themselves, with males primarily competing with females. However, this research reveals that both genders vie for food resources.
These observations could reshape our understanding of gender dynamics within human societies.
The researchers noted that male dominance over female counterparts is not a straightforward outcome of evolution, but rather reflects “human’s flexible social and mating frameworks.”
Furthermore, they argue that this is supported by observations among our close relatives, such as bonobos and chimpanzees, where males are larger than females, yet females hold more dominance.
As a result, scientists suggest that humans are unlikely to inherit patriarchal structures from their primate ancestors.
Read more:
About Our Experts
Dr. Nikos Smitt is a postdoctoral researcher at the University of Torque in Finland and associated with the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. His research delves into the evolution of social structures and mating systems, as well as the dynamics of conflict and cooperation.
Dr. Martha Robbins serves as the director of the Bwindi Mountain Gorilla Research Project and leads the Primate Behavior and Evolution group at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. Her research is centered on the evolution of social behavior.
After 25 years of investigation, researchers at Northwestern University in the United States have found out why some adults have acclimatized to near-optimal cognitive functioning since the 1980s.
Referred to as “super agers,” these individuals are over 80 years old, yet their memory capabilities rival those of adults in their 50s and 60s.
Since the year 2000, scientists have examined 290 of these super agers, assessing 77 brains to better understand those who resist cognitive decline.
The study revealed shared personality traits among the ultra-elderly compared to the general population. These individuals often report being highly social and possessing strong interpersonal connections.
However, the differences in personality are merely the tip of the iceberg. Dr. Sandra Weintraub – a Professor of Psychiatry, Behavioral Science, and Neurology at Northwestern and co-author of a new paper summarizes the findings regarding these super agers – “What we observed in their brains was astonishing; it felt like earth-shattering news for us.”
In some super agers’ brains, scientists identified amyloid and tau proteins, commonly known as plaque and tangles, which are significant in the context of Alzheimer’s disease. In other super agers, these were absent.
Nonetheless, no brains exhibited the damage typically linked with these plaques or tangles.
“Our observation is that there are two distinct mechanisms enabling someone to become a super ager,” Weintraub stated. “The first is resistance, meaning they do not develop plaque or tangles. The second is resilience; they do form these but do not experience negative brain impacts.”
Super agers displayed not only varying personality traits but also distinct brain structures, particularly in the size and shape of the cortex.
In addition to that, these super agers exhibited youthful brain structures. While older brains generally have thinner cortices compared to younger ones, these individuals did not show such thinning.
In particular, they displayed remarkable thickness in the anterior cingulate cortex, a crucial area involved in processing information related to decision-making, emotions, and motivations.
Moreover, super agers had a greater number of Von Economo neurons, also known as spindle cells, compared to their normally aging peers. These neurons, located in the cortex, play a significant role in social behavior, emotional processing, and self-awareness.
“Our research indicates that exceptional memory in later years is achievable and correlates with a well-defined neurobiological profile,” Weintraub stated. “This paves the way for novel interventions aimed at preserving brain health in older age.”
Researchers expressed hope that their work would encourage cognitive health and unveil new approaches to slow or prevent future neurodegenerative diseases like dementia.
The early human migration through mainland Southeast Asia (SUNDA) marks the oldest evidence of humans crossing marine barriers to access secluded land. Previously, the earliest indication of Wallacea, an area of oceanic islands east of Sunda, comprised flakestone tools found at Wallosea, Flores Island, dating back at least 152 million years. Excavations in Sulawesi, the largest island, have uncovered stone artifacts at Talep’s open site dating to at least 194,000 years ago. Presently, researchers from Griffith University have identified stone tools at locations close to the fossil-rich cario strata that date back at least 104 million years, possibly extending to 1.48 million years. This information hints that Sulawesi was occupied by humans around the same period as Flores.
Old-fashioned humanity. Image credit: Ninara / CC by 2.0.
Professor Adam Blum of Griffith University and his team discovered seven stone artifacts within the sedimentary layers at the Cariosite.
During the early Pleistocene, this area would have been near river channels, facilitating activities such as tool-making and hunting.
The artifacts from Cario are small sharp stones (flakes) created by larger pebbles, likely sourced from local riverbeds by early human inhabitants.
“This findings enhance our understanding of extinct human migrations across the Wallace Line, a transitional area where unique animal species have evolved independently,” said Professor Blum.
Reconstruction of Homo floresiensis. Image credit: Elizabeth Daines.
Utilizing paleomagnetic dating of the sandstone and direct dating of excavated pig fossils, researchers confirmed that the Cario artifacts are at least 1.04 million years old.
Previously, evidence of human habitation in Warasea had been found dating back at least 102 million years in Talep, Sulawesi, based on stone tools located in Warosea, Wolosage, Flores.
Luzon, located in the Philippines and north of Wallacea, has yielded human evidence dating back approximately 700,000 years.
“This is a critical piece of the puzzle, yet the Cario site has yet to reveal any human fossils,” commented Professor Blum.
“We now recognize that a toolmaker existed in Sulawesi a million years ago, but their identity remains unknown.”
Stone artifacts from the site of Cario in Sulawesi, Indonesia. Image credit: Hakim et al., doi: 10.1038/s41586-025-09348-6.
The initial discovery of Homo floresiensis and subsequent fossils from Flores, similar in size and dating back 700,000 years, implied that it may have been linked to Homo erectus, which managed to bypass substantial marine barriers between the mainland of Southeast Asia to inhabit this smaller island and underwent island dwarfism for eons.
“The revelation of Sulawesi prompts us to consider the fate of Homo erectus on an island more than 12 times larger than Flores,” Professor Blum noted.
“Sulawesi is an unpredictable variable. It’s almost like a mini continent.”
“If hominins were isolated on this expansive, ecologically diverse island for over a million years, would they have evolved in ways similar to the Hobbits of Flores?”
“Or could there have been an entirely different evolutionary path?”
The study was published yesterday in the journal Nature.
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B. Hakim et al. Human presence in Sulawesi during the early Pleistocene. Nature Published online on August 7th, 2025. doi:10.1038/s41586-025-09348-6
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