Unlocking the Secrets of ‘Compound X’: A Breakthrough in Eliminating Parkinson’s Disease Proteins from the Brain

Parkinson’s Disease: Neurological Insights and Treatment Advances

Image Credit: Dr. Gopal Murthy/Science Photo Library

A potential breakthrough drug, referred to as Compound X, has demonstrated significant improvements in mobility and balance for mice exhibiting Parkinson’s-like symptoms. This innovative treatment enhances the brain’s waste-processing capabilities, effectively removing toxic protein aggregates. However, the research team has yet to disclose the specifics of this compound.

“With intellectual property considerations, we recognize that Compound X represents a pivotal advancement, potentially serving as the first disease-modifying intervention for Parkinson’s disease,” stated Zhao Yan from Swinburne University of Technology, Melbourne.

Parkinson’s disease affects over 10 million people globally, characterized by the progressive loss of nerve cells involved in movement control. This degeneration is widely believed to originate from the build-up of misfolded proteins called α-synuclein, due to a malfunction in the brain’s waste disposal system—the glymphatic system. Recent studies aimed to determine if enhancing this system could alleviate symptoms.

To explore this hypothesis, Yang and her colleagues employed a novel mouse model mimicking Parkinson’s disease. This model utilizes repeated nasal administration of misfolded alpha-synuclein, promoting its spread throughout the brain and causing severe motor deficits—more accurately reflecting human Parkinson’s disease compared to traditional models that rely on toxin exposure. Yang showcased her findings at the Oxford Glymphatic and Brain Clearance Symposium in the UK on April 1st.

The team administered weekly doses of alpha-synuclein to 20 mice over four months. After two months, they introduced Compound X—an FDA-approved drug administered four times a week in synergy with methylcellulose, which enhances drug solubility. Preliminary studies indicated that Compound X could increase slow brain waves, known to support glymphatic function, although its specific impact on brain waste clearance warranted further investigation, Yang noted.

The remaining group of mice received only methylcellulose as a control. The progression of Parkinson’s symptoms paralleled early-stage human patients, including alterations in smell and sleep patterns, according to Yang.

Subsequently, all mice underwent a locomotion test involving navigation on a slender rod. Remarkably, 80% of the mice treated with Compound X successfully completed the task, compared to only 10% in the control group.

In another assessment requiring balance on a rotating rod for five minutes, nearly all Compound X-treated mice maintained their position throughout the duration, while the control group averaged just three minutes.

Further analyses revealed that Compound X enhanced slow-wave activity during deep sleep and facilitated fluid circulation within the glymphatic system. Notably, this treatment reduced α-synuclein aggregates in the mice’s motor cortex by approximately 40% compared to the control group.

“This discovery holds significant potential,” emphasized Duan Wenzhen from Johns Hopkins University, Maryland. “The medical community requires treatments that can decelerate disease progression. Current therapies only alleviate symptoms temporarily, lacking efficacy in altering the disease’s trajectory.”

The research team aspires to obtain regulatory approval for human trials targeting early-stage Parkinson’s patients within the upcoming year. “Our ultimate goal is to provide treatment that addresses the early stages of the disease, where the most significant benefits are realized,” Yang concluded.

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Source: www.newscientist.com

Why Some People Thrive on Just 4 Hours of Sleep: Unveiling the Secrets to Restful Living

In today’s fast-paced world filled with screens and distractions, quality sleep is increasingly rare. Alarmingly, over 1/3 of the US adult population is not achieving the recommended amount of sleep nightly.

However, a select few possess unique biological advantages, allowing them to thrive on much less sleep.

Believe it or not, around 1 to 3 percent of the population are “short sleepers” who function optimally on just 4 to 6 hours of sleep each night.









What’s even more fascinating is that scientists are beginning to uncover the reasons behind this phenomenon. They are exploring whether others may eventually gain this ability.

This suggests that, in the not-so-distant future, you may only need four hours of sleep for optimal functioning.

Who Are the Hidden Superheroes?

Natural short sleepers do not achieve their unique traits through mindset or willpower; it is a biological adaptation.

Recent research has identified specific genes that allow some individuals to sleep significantly less without negatively impacting their health.

A notable discovery involves a gene called December 2nd, which regulates orexin levels—a brain chemical that enhances alertness.

While low orexin levels can lead to narcolepsy, those who are naturally short sleepers seem to produce elevated amounts, enabling them to stay awake on less rest.

Orexin, produced in the hypothalamus, enhances alertness, concentration, and sleep cycle regulation – Credit: Getty

When researchers introduced this mutation into mice, they found that these mice required less sleep without experiencing cognitive decline typically associated with sleep deprivation.

Since then, at least seven genes have been implicated in this unique sleep pattern, consistently yielding shorter sleep cycles without apparent drawbacks.

According to Professor Guy Leszziner, a neurologist and sleep expert, the evidence points to genetic factors as the key determinant of natural short sleepers.

Such individuals are rarely seen in clinics, as their unique sleep patterns are often mistaken for normalcy unless pointed out by someone close.

“Short sleepers often don’t realize their patterns are unusual until others highlight it,” he explains. “There may be others with similar patterns, particularly if there’s a family history, so it feels normal to them.”

While natural short sleepers are genetically uncommon, research into their mechanisms is rapidly gaining momentum.

This leads to intriguing possibilities: instead of waiting for nature to endow us with this gift, could we one day engineer it?

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Introducing CRISPR

CRISPR is a revolutionary gene-editing technology granting scientists the capability to alter DNA with astounding precision. Initially part of bacterial defense systems, it now stands as one of the most potent tools in modern biology.

This technology employs enzymes as “programmable scissors.”

By assigning short genetic addresses to these enzymes, scientists can direct their actions precisely within the genome. Once they cut, the cell’s repair mechanisms can delete genes, correct mutations, or insert new DNA.

Currently, CRISPR is mainly utilized for treating genetic conditions such as sickle cell disease. However, as technology progresses, many researchers speculate it could extend to enhancing human capabilities, including sleep.

At GITEX Global, Dr. Trevor Martin, CEO of genetic engineering firm Mammoth Biosciences, shared:

“They don’t just persevere; they actually require only three hours of sleep. While we discuss longevity, imagine if everyone had access to that!”

His company is focused on creating new CRISPR tools that are smaller and simpler to introduce into human cells than earlier versions.

“Our mission is to eradicate genetic diseases,” he states in BBC Science Focus. “We are developing CRISPR technology capable of extensive editing in every cell in the body.”

While Mammoth is currently addressing rare genetic conditions like familial chylomicronemia syndrome, Martin emphasizes the broader potential of this technology, stating, “There’s no reason to stop there.”

CRISPR empowers scientists to edit genetic code with unmatched accuracy – Photo courtesy of Getty

So, how feasible is it to edit someone to become a short sleeper? Leszziner asserts it’s theoretically achievable, though complex.

“In theory, if all responsible genes can be identified, altering someone’s genetic makeup is possible,” he explains. “However, it is not as straightforward as simply removing or modifying one gene.”

Social considerations also come into play. “If everyone suddenly had three to four extra hours each day, society would need a significant reconfiguration,” Leszziner notes. “Would those hours be utilized for work or enjoyment? The answer remains uncertain.”

A “One-Time” Upgrade

Concerns may arise that, even if such a treatment becomes available, access could be limited to a privileged few.

Fortunately, Martin reassures that this technology is inherently designed for accessibility.

“The incredible aspect of genetic medicine, often overlooked, is that it can be a one-time solution,” he explains. “You won’t need continuous medication; a single visit to a healthcare provider could suffice. While cost is a topic, lengthy medical infrastructures won’t be necessary.”

For now, transforming someone into a short sleeper remains hypothetical. Yet, the science of sleep efficiency is expanding rapidly, and CRISPR technology is progressing even faster.

For the first time, researchers can plausibly assert that it might be feasible to increase your waking hours by three to four hours each day.

This may not happen today or tomorrow, but soon, a day will come when sleeping just four hours will be a reality. Prepare yourself to grasp that potential!

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Source: www.sciencefocus.com

Unlocking the Secrets of a Memory Champion: Inside the Brain of a Memory Master

Nelson Dellis winning the 2011 USA Memory Championship in New York.

Don Emmert/AFP via Getty Images

Nelson Dellis, a six-time American Memory Champion, has astounded the world by memorizing a shuffled deck of cards in just 40.7 seconds and recalling the first 10,000 digits of Pi. Recent studies on his brain offer insights into the extraordinary capabilities that allow such feats and how others may develop similar skills.

Dellis reports that he had an average memory until age 25, when he began rigorous memory training after observing his grandmother suffer from Alzheimer’s disease. This dedication included extensive practice memorizing numbers, names, and vocabulary. “I continue to train my memory regularly,” he states. “It’s akin to a muscle; if you don’t utilize it, it deteriorates.”

While dementia-related memory issues are well documented, the phenomena of exceptional memory are less understood. To investigate this, researchers from Washington University in St. Louis collaborated with Dellis for a comprehensive brain analysis.

Dellis participated in extensive brain scans and memory assessments over approximately 13 hours between 2015 and 2021. In one assessment, he was tasked with memorizing a series of four to seven words displayed for just over a second, employing traditional memorization techniques like repetition.

“Sitting still in a scanner while memorizing wasn’t my usual training method, but it was fascinating to contribute to the connection between memory athletes and measurable scientific outcomes,” Dellis remarked. His brain activity was compared to two control subjects with strong, yet not extraordinary, memories.


The Washington University team analyzed the results and discovered that Dellis and the controls exhibited similar brain activity during the tasks. All three individuals showed enhanced electrical signaling in the retrosplenial cortex, extrastriate visual cortex, and dorsal frontal cortex—regions associated with navigation, visual processing, and working memory. Interestingly, Dellis emphasized that rote memorization is not his preferred technique. “Rote memorization is often ineffective, yet it’s widely known,” he notes.

Dellis undertook another task unique to him, memorizing the order of a shuffled deck of cards while undergoing brain scans. He utilized the loci method, also recognized as the memory palace technique, which involves linking information to specific locations in one’s environment to facilitate recall. “This shift from abstract concepts to visual-spatial associations forms the core of almost all mnemonic strategies I employ,” Dellis shares.

This task stimulated activity in the same three cortices but altered activity in the hippocampus, a critical brain region for memory. Dellis exhibited higher hippocampal activity during the encoding phase in the first task than during recall. In contrast, the opposite was found during the second task, which activated the caudate nucleus—a brain structure involved in learning and memory. Although the researchers chose not to comment further, they speculated that the caudate’s involvement might indicate memory is an integrated skill.

Dellis after winning in 2012 by reciting the order of 104 playing cards.

Nelson Dellis

Moreover, researchers compared Dellis’s brain activity to that of 887 participants in the Human Connectome Project. Their findings revealed that memory champions demonstrate significantly enhanced functional connectivity, illustrating efficient collaboration among different brain areas.

Dellis and his colleagues advocate for the wider application of the loci method. “Considering its clear behavioral benefits, it’s surprising that techniques like this are not more commonly integrated into educational and clinical practices,” he observes. Martin Dresler from Radboud University Medical Center in the Netherlands concurs.

Dresler states that this technique can be extremely effective. It utilizes our inherent strengths. “The triumph of trajectory methods likely arises because they transform abstract data into visual-spatial concepts,” he explains. “Our brains did not evolve to remember abstract details like numbers or dates; rather, they evolved to navigate our environment for food and safety, honing our spatial awareness.”

However, Craig Stark, a professor at the University of California, Irvine, emphasizes that it’s uncertain how much of Dellis’s exceptional memory results from training versus innate ability. “We can’t discern which elements are trained skills versus inherent capabilities,” he states.

If you find traditional memory training daunting, Dellis also attributes his abilities to a healthy lifestyle that includes regular exercise. “To enhance your everyday memory, heed your mother’s advice: be mindful, maintain a healthy diet, get adequate sleep, and exercise,” he emphasizes, referencing Morris Moscovich from the University of Toronto, Canada.

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Source: www.newscientist.com

The Shroud of Turin: Secrets of DNA from Humans, Plants, and Animals Uncovered

The Shroud of Turin is engraved with an image resembling Jesus Christ.

Public Domain/Art Collection 2/Alamy

Recent DNA analysis has unveiled a significant number of contaminants—animal, plant, and human—on the Shroud of Turin, which complicates the narrative surrounding this enigmatic relic, believed to be the cloth in which Jesus Christ was wrapped following his crucifixion over 2,000 years ago.

Stretching 4.4 meters long and 1.1 meters wide, the Shroud of Turin is considered one of the most renowned and debated Christian artifacts globally. Its first documented appearance was in France during 1354, after which it resided for nearly 5,000 years in the Basilica of St. John the Baptist in Turin, Italy.

In 1988, researchers conducted radiocarbon dating along with accelerator mass spectrometry techniques, concluding that the Shroud was created between 1260 and 1390. This finding brought into question the identity of the figure depicted on the cloth as Jesus, although many Christian scholars continue to dispute this late medieval dating.

In a 2015 study by Gianni Barcaccia and colleagues from the University of Padova in Italy, material from the artifacts sampled in 1978 was reexamined. The researchers first proposed the possibility that the cloth may have origins in India.

Currently, Mr. Barcaccia—who opted not to be interviewed for this publication—has spearheaded a new analysis of the material from 1978, revealing that the Shroud contains a remarkable spectrum of medieval and modern DNA.

The genetic materials identified include DNA from domestic animals like cats, dogs, chickens, cows, goats, sheep, pigs, and horses, alongside wild species such as deer and rabbits.

Additionally, traces of various fish species such as mullet, Atlantic cod, and stingrays were discovered, as well as marine crustaceans, flies, aphids, and arachnids like dust and skin mites.

Common plant DNA located within the Shroud includes species like carrots, wheat, peppers, tomatoes, and potatoes, suggesting these were possibly introduced to Europe following exploratory voyages to Asia and the Americas.

However, pinpointing the timeline of these contaminating events regarding animals and plants remains elusive.

The research team also isolated human DNA from various individuals who came in contact with the Shroud, notably including those from the 1978 sampling. “The presence of multiple individuals’ DNA complicates the task of identifying the Shroud’s original DNA,” the team noted.

Nearly 40% of the human DNA identified on the Shroud appears to be of Indian origin, possibly resulting from historic interactions or from Romans importing linen from regions near the Indus Valley, report Barcaccia and colleagues.

“The DNA findings on the Shroud of Turin indicate extensive exposure in the Mediterranean area, potentially suggesting that the fabric may have been produced in India,” the researchers articulated.

Anders Goeterström from Stockholm University stated that preliminary studies place the Shroud’s date in the 13th century, a timeframe that is widely accepted in the scientific community. “Despite discussions surrounding the 1988 radiocarbon dating, most researchers find it sufficiently credible,” he explained.

Goeterström remains skeptical about the cloth’s potential Indian origins. He asserts, “There is still no compelling evidence to dismiss that the Shroud is French and dates from the 13th or 14th century,” he concluded.

“This significant relic has its own unique history, which might prove to be more intriguing than its legendary roots lacking scientific backing.”

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Source: www.newscientist.com

Quantum Computers: Unlocking Their Secrets is Closer Than You Think

Google’s Willow Quantum Computer

Credit: Google Quantum AI

Quantum computers capable of breaking internet security codes are rapidly approaching reality. Discoveries from two research teams highlight the strides being made, indicating that current quantum machines are already over halfway to the necessary scale.

Both studies focus on cryptographic methods centered around the Elliptic Curve Discrete Logarithm Problem (ECDLP)—a mathematical challenge ideally suited for data encryption. ECDLP has been widely adopted for securing internet communications, including banking transactions and major cryptocurrencies like Bitcoin.

While classical computers struggle to breach elliptical curve-based codes, it has been understood since the 1990s that quantum computers possess the ability to do so. However, building a sufficiently powerful quantum computer seemed a far-off challenge due to engineering limits.

Recent advancements in both theory and engineering have drastically accelerated this timeline. Theoretical research has led to optimized quantum hacking algorithms, significantly lowering the required quantum computing power. For instance, in 2019, estimates indicated a need for 20 million qubits to crack a related encryption system called RSA-2048; by February, that figure plummeted to just 100,000 qubits.

Furthermore, while the most sophisticated quantum computers in 2019 barely exceeded 50 qubits, today’s leading machines have surpassed 1,000 qubits, with the largest unused qubit array containing 6,100 qubits.

Currently, Dorev Bruchstein and his team suggest that ECDLP could require machines with only 10,000 qubits. Though this decoding would still take years, Ryan Babush and his colleagues from Google’s Quantum Research division have shown that just 500,000 qubits could perform the task in as little as nine minutes.

“Today marks a significant moment for quantum computing and cryptography,” says Justin Drake of the Ethereum Foundation, which collaborates with researchers at Google. He shared this insight via social media.

Bruchstein’s estimates are based on qubits formed from ultracold atoms manipulated by lasers, providing increased connectivity that likely reduces the number of required qubits.

Bruchstein envisions a potential array of 10,000 ultracold qubits being realized within a year, yet controlling and operating them with precision will be a significant challenge. Proper interaction between qubits is critical, eliminating the possibility of merely linking multiple existing machines together.

Bruchstein anticipates that a fully operational quantum computer may not be available until the decade’s end. “We’re making substantial progress, but it’s beginning to feel feasible to build,” he explains.

Concerns Over Cryptocurrency Security

The Google team derived their conclusions based on a different type of quantum computer using superconducting circuits. These quantum systems are often viewed as more advanced, and Google prioritizes their development.

The researchers have refrained from commenting publicly about the study. However, the paper indicates that “resource estimations could be dramatically lowered with more aggressive hardware capabilities,” implying that the 500,000 qubit target might be conservative. Notably, they refrain from providing details about the decryption algorithm for security reasons.

They also indicate that such quantum computers could potentially intercept cryptocurrency transactions and reroute funds for a brief period before recording, effectively enabling theft.

Given the findings from both studies, it’s clear that Bitcoin may be more susceptible to quantum attacks sooner than previously understood, according to Scott Aaronson from the University of Texas at Austin.

Stefano Gozioso from the University of Oxford notes that both configurations of quantum computers encounter substantial engineering hurdles before practical application is achievable, particularly the ultracold atom method, which is still largely experimental. He emphasizes the growing urgency for security in the digital realm.

Some internet browsers already implement encryption impervious to quantum attacks, termed post-quantum cryptography (PQC). While traditional banking systems may adapt post-attack, a decentralized cryptocurrency framework might be far more vulnerable, according to Gozioso. Google suggests that organizations transition to PQC by 2029 as the need intensifies.

“This is precisely why we initiated the PQC standardization project over a decade ago,” states Dustin Moody from the National Institute of Standards and Technology (NIST). “We anticipated that advancements in quantum hardware would coincide with algorithmic progress.”

NIST has identified several PQC algorithms with the potential to become future security standards as practical quantum computers emerge, with the U.S. federal government targeting a transition by 2035. However, Moody warns that organizations should act promptly. “These studies reinforce that the window for migration is limited, making immediate action imperative,” he concludes.

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  • Safety/
  • Quantum Computing

Source: www.newscientist.com

CT Scan Uncovers Secrets of Triassic Cynodonts: A Deep Dive into Decades-Old Mysteries

Initially recognized from a single skull unearthed in South Africa in 1952, Cystechinodon parvus has experienced considerable debate regarding its place in the evolutionary tree. Previously classified variously as a close relative of advanced cynodonts, a juvenile of another species, or even as a creature outside of this group, recent research employing computed tomography (CT) scans has reconstructed the fossil digitally. This compelling study reveals that this Triassic species is, in fact, a distinctive and more primitive cynodont than previously assumed.



Reconstruction of Cystechinodon parvus. Image credit: Morgan Hopp.

Cynodontia Dr. Erin Rand and her colleagues from the University of the Witwatersrand highlight that it is one of six primary subclades of therapsids that emerged during the Late Permian, significantly contributing to the diverse tetrapod fauna of the Triassic period.

This group encompasses mammals, including both non-mammalian cynodonts and true mammals, playing a pivotal role in understanding the origins of mammals.”

“The major Triassic diversification of cynodonts is represented by eucynodonts, which are divided into two monophyletic subclades: Cynognathia and Probainognathia.”

The recent study revisited human skull analysis of Cystechinodon parvus, a type of cynodont inhabiting the middle Triassic period, approximately 247 to 237 million years ago.

This specimen measures just 5.72 cm in length and was discovered in 1952 at Louisperdokop, situated west of Maletswai in the Eastern Cape province of South Africa.

Through advanced CT imaging, researchers examined the fossil, uncovering detailed features of the skull, jaw, and internal anatomy.

The analysis places Cystechinodon parvus among basal, non-eucynodont cynodonts, diverging from more advanced eucynodont groups.

This fossil displays a unique combination of anatomical traits: a significantly enlarged vestibule in the inner ear, a small and narrow parietal foramen, a relatively simple maxillary canal, and the absence of a carotid foramen.

These characteristics support the classification of Cystechinodon parvus as a separate genus and species, indicating that it likely led an underground lifestyle.

Specifically, the enhanced vestibule of the inner ear suggests heightened sensitivity to low-frequency sounds, a feature commonly associated with modern burrowing animals.

Consequently, researchers concluded that Cystechinodon parvus was likely an obligate burrowing species.

“After a century of debate regarding the classification of Cystechinodon parvus, our findings provide significant support for its recognition as a true clade of non-mammalian cynodonts,” the researchers stated.

“The evidence from our study firmly establishes Cystechinodon parvus as a valid taxon of basal non-eucynodont Cynodontia (specifically, the non-eucynodont epicynodonts).”

“Although the specimen represents a developmental range from subadult to adult, its classification is substantiated by a midline-opening secondary palate.”

“Ultimately, its unique inner ear and endocast anatomy further confirm that Cystechinodon parvus was a distinct fossil animal.”

Cystechinodon parvus has been reconstructed as the basal lineage of southern African cynodonts that survived the end-Permian mass extinction and continued as a relict fauna into the early Middle Triassic,” the researchers concluded.

For more detailed insights, refer to their published paper in the Anatomical Records this month.

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Erin S. Rand and colleagues, Re-description of Triassic cynodonts Cystechinodon parvus and reassessment of its phylogeny. Anatomical Records, published online on March 19, 2026. doi: 10.1002/ar.70179

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Source: www.sci.news

Unlocking the Secrets: How Your Dog Communicates with You

Our beloved dogs have been part of our lives for thousands of years. While they may not speak our language, they communicate extensively through tail wags, ear flicks, and expressive eyebrows. Understanding these signals can deepen the bond between you and your canine companion.

Many pet owners believe they know their dogs inside and out. However, research indicates that dogs are often better at reading our body language than we are at interpreting theirs.

To decode the intricacies of canine communication, we consulted animal behavior specialist Dr. Zazie Todd. From their tails to paws, she elucidates the hidden meanings behind your dog’s movements.







How to Read a Dog’s Facial Expressions

Just as we scrutinize each other’s faces for understanding, can we access our dogs’ thoughts similarly? According to Todd, “Some dogs are more expressive, while others, due to their facial structure, display fewer emotions. It’s beneficial to anthropomorphize with caution to gain insight into what your dog may be feeling.”

A relaxed jaw and slightly open mouth is akin to a dog’s version of a “smile”, indicating calmness, while exposing teeth can signal discomfort or the need for personal space.

Dogs may not laugh like humans, but a relaxed, open expression suggests they feel calm and safe. Photo credit: Getty

Contrarily, a dog displaying its teeth may indicate discomfort, signaling you to back off. Todd adds that the so-called “guilty look” dogs give after a mischievous act may not mean what you think.

A 2009 study published in Behavioral Processes showed that dogs often respond based on their perception of whether they could be in trouble, rather than a true understanding of guilt.

This information highlights an essential difference in dog psychology. However, eye contact remains significant; a dog that trusts you will maintain eye contact, while a scared dog may avoid it.

Furthermore, dogs use their ears to express emotions. Ears up and forward indicate interest, while ears pinned back often suggest anxiety. While floppy-eared dogs might not express this as clearly, a forward tilt can still indicate curiosity.

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How to Tell if Your Dog is Stressed

Todd points out that while happy dogs are easy to read—think wide tail wags—recognizing stress signals can be trickier. “We often misinterpret behaviors because we assume they mean something else.”

For example, a yawn doesn’t always signify sleepiness; research shows it can indicate fear. A 2017 study found that yawn may indicate anxiety when approached by strangers.

Licking lips can signal discomfort or distaste for a situation rather than hunger, emphasizing the importance of context. Other signs of stress include moving away, sniffing the ground, shaking, and leg lifting.

How to Read a Dog’s Posture

Understanding dog posture can be straightforward. A hunched, low body may indicate fear, while a stiff body with raised hackles shows aggression. Alternatively, a “play bow”, where a dog stretches with its front legs down while raising its rear, signals a desire to play.

The play bow is a friendly signal between dogs and can also include humans—an invitation to have fun! – Image credit: Getty

Understanding Dog Tail Wagging

Despite losing tails millions of years ago, dogs use theirs for numerous purposes, including balance, communication, and social signaling. Their tails play an essential role in conveying emotions.

A loose, wild wag usually indicates happiness, while a tight, vertical tail may suggest discomfort or stress. Paying attention to the direction of the wag can also provide insights; studies found that happy dogs tend to wag to the right.

How to Understand Barks and Growls

While some dogs use soundboards, most rely on barks, growls, and whines to communicate. Todd notes that different vocalizations can be parsed into categories based on context and emotional state.

A 2017 study highlighted that dogs may use growls to communicate their size and intent accurately. In contrast, growls during play may exaggerate aggressiveness, allowing dogs to express themselves without causing harm.

Participants in the study were surprisingly accurate in interpreting growls, especially women and seasoned dog owners. Dogs, conversely, are adept at distinguishing between various vocalizations, understanding the nuances that humans may miss.

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Source: www.sciencefocus.com

Discover the Secrets Between the Stars: An Insightful Guide by Cyworthy

The universe contains space waiting to be explored. When we shift our focus from Earth and the Milky Way to intergalactic space, we find an average density of 1 atom per cubic meter, or roughly 35 cubic feet of emptiness. Yet, the universe holds more than mere emptiness; it conceals a wealth of material on smaller scales.

Inside galaxies, regions between stars harbor gatherings of matter at different temperatures and densities, collectively known as the multiphase interstellar medium (ISM). This cosmic material primarily consists of hydrogen and helium, supplemented by trace amounts of heavier elements, referred to by astronomers as metals. It is from this material that new stars are born.

A recent study by a team of astronomers examined how variable metallic content affects star formation within the ISM. By simulating ISM clouds with varying metallicities across seven regions of the nearby universe, including areas near the Sun, random patches of the Milky Way, the Large and Small Magellanic Clouds, Sextans A, the globular cluster NGC 1904, and the blue compact dwarf galaxy I Zwicky 18, the team employed the SILCC project, a collaborative effort among European research institutions focused on simulating the lifecycle of star-forming gas clouds.

Using a sophisticated simulation code, the researchers modeled gas dynamics and magnetic field interactions within a massive cuboid measuring 500 parsecs on each side. This giant box, equivalent to 15 quintillion kilometers per side, contained gas molecules influenced by the gravitational attractions of star clusters and dark matter present within and around the cloud. To maintain cloud stability, gas molecules were initially set to move at an average speed of 10 kilometers per second during the first 20 million years.

Post-initiation, the simulation examined how magnetic fields and fluid dynamics evolved, including the effects of high-energy protons, referred to as cosmic rays. Over a simulated timeframe of 200 million years, the researchers tracked cloud interactions, star formation, lifecycle events, and the chemistry of residual molecules. By isolating metallicity effects across the seven different simulations, it was found that the solar neighborhood had the highest metallicity, while I Zwicky 18 displayed a mere 2% metallicity.

The findings revealed that low-metallicity regions of the ISM tend to be warmer on average compared to high-metallicity areas. The results indicated that metals possess superior heat-releasing properties compared to hydrogen or helium. In contrast, colder regions rich in metals fostered star birth, whereas warmer, low-metallicity environments produced fewer stars, perpetuating a cycle of thermal dynamics until temperatures soared to around 1 million Kelvin (or 2 million °F).

The research team acknowledged several simplifications in their study. Due to time constraints, only metallicity was varied across simulations, despite differing spatial parameters. Additionally, the team underestimated common metals like carbon, oxygen, and silicon, which are formed at higher rates through stellar nuclear fusion. Lastly, it was assumed that all massive stars culminated their lifespans via supernovae, excluding the possibility of black hole formation.


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Source: sciworthy.com

How Sharing Genetic Risk Scores Could Unintentionally Expose Personal Secrets

Unlocking Genetic Data: The Risks of Polygenic Risk Scores

Genetic data can be analyzed to estimate the risk of developing specific health conditions. Science Photo Library / Alamy

Polygenic risk scores (PRS) summarize an individual’s likelihood of developing particular health conditions, revealing insights into a person’s DNA through advanced mathematical methods. These scores could potentially be leveraged by health insurance companies to reconstruct genetic data from summary genomic reports, uncovering health risks that patients might not disclose. Furthermore, individuals sharing their scores anonymously could be identified by extracting genetic data and querying public genealogy databases.

Understanding Polygenic Risk Scores

Polygenic risk scores measure the impact of variations in tens to thousands of specific letters in the genome, known as single nucleotide polymorphisms (SNPs). Researchers and DNA testing companies like 23andMe use these scores to summarize potential health risks, which may also be made public by individuals seeking advice on score interpretation.

Solve a polygenic risk score is akin to deducing a phone number, only knowing that the digits sum up to a specific number, illustrating a mathematical challenge known as the knapsack problem. This complexity makes PRS considered to have a low privacy risk.

However, each SNP value in the score is multiplied by a highly precise weight—up to 16 orders of magnitude—reflecting its contribution to overall disease risk. This makes even low-risk models vulnerable to data attacks.

Research Findings on Genetic Risk Scores

According to Gamze Gyursoy at Columbia University, “The final polygenic risk score can be estimated with a high degree of accuracy because it is constrained by the finite methodology used to reach that figure and the statistically probable arrangement of the underlying SNPs.” Gyursoy, alongside Kiril Nikitin, also from Columbia, conducted experiments using 298 polygenic risk models based on data from 2,353 individuals. They worked backwards to calculate all possible genomes that could generate each score while excluding those with numerous rare mutations.

As a result, they were able to reconstruct donor genotypes with an impressive 94.6% accuracy and accurately predicted 2,450 SNPs per person. Testing revealed that just 27 SNPs were sufficient to identify an individual from a pool of 500,000 samples, with up to 90% accuracy in predicting family relationships. Interestingly, individuals of African and East Asian descent were easier to identify, largely due to underrepresentation in available genetic databases.

Mitigating Risks and Ethical Considerations

Gyursoy highlights that 447 small, high-precision models in the public database of polygenic scores are susceptible to such attacks. “I wanted to emphasize that the risk is low; however, [certain conditions] still present the potential for data leakage, which must be considered in study planning, especially when involving vulnerable populations,” Gyursoy states.

Researchers at Massachusetts General Hospital believe existing data protection methods and computational barriers limit the potential misuse of polygenic risk scores. “These findings serve as a crucial reminder that small models should be treated as sensitive data in clinical reporting and informed consent discussions,” they add.

Source: www.newscientist.com

Unlocking the Secrets: Astronomers Decode Zebra Stripes of the Crab Pulsar

Recent findings from the University of Kansas have unraveled a long-standing astrophysical mystery, revealing how the intricate interplay of gravity and magnetospheric plasma divides the radio emissions of a club pulsar—a remnant of the supernova witnessed by ancient astronomers in 1054 AD—into perfectly aligned “stripes.”

This composite image showcases the Crab Nebula, with the club pulsar centrally positioned. Image credit: X-ray – NASA / CXC / ASU / J. Hester et al.; Optics – NASA / HST / ASU / J. Hester et al.

In 1054 AD, Chinese astronomers documented an exceptionally bright new star, the most luminous object in the night sky after the moon, visible even in broad daylight for 23 days. This spectacular celestial event was also noted by Japanese, Arabian, and Native American astronomers.

Today, the Crab Nebula, found where this bright star once shone, is cataloged as Messier 1 (M1) or NGC 1952, located approximately 6,500 light-years away in the Taurus constellation.

Initially identified in 1731 by British physician and astronomer John Beavis, the Crab Nebula was later rediscovered in 1758 by French astronomer Charles Messier. Its name, reflecting its appearance, is derived from a painting by Irish astronomer Lord Rose in 1844.

The central star of the Crab Nebula is the Crab Pulsar, scientifically known as PSR B0531+21.

Due to their proximity and visibility, studying the Crab Nebula and its pulsars offers astronomers vital insights into the nature of nebulae, supernovae, and neutron stars.

“Gravity alters the shape of spacetime,” states Professor Mikhail Medvedev, one of the study’s authors.

“In the presence of a gravitational field, light does not travel in straight lines because space itself is curved,” he explains.

“What seems straight in flat spacetime appears curved under strong gravitational influence. Hence, gravity functions as a lens in curved spacetime.”

While gravitational lensing has often been discussed in relation to black holes, this case uniquely illustrates a “tug of war” between plasma and gravity creating the observed signals.

“In black hole imagery, gravity solely shapes the structure,” notes Professor Medvedev.

“In contrast, both gravity and plasma are at play in the club pulsar. This research presents a novel application of this combined effect.”

“An intriguing pattern emerges in the pulsar’s spectrum,” Professor Medvedev adds.

“Unlike a conventional broad spectrum like sunlight—which offers a continuous range of colors—the Crab’s high-frequency interpulses display discrete spectral bands. It’s like observing a rainbow with only selected ‘colors’ visible, leaving significant gaps in between.”

A large mosaic image of the Crab Nebula, a six-light-year wide remnant of a supernova explosion. Documented by Japanese, Chinese, and Native American astronomers around 1054 AD. Image credit: NASA / ESA / J. Hester / A. Loll, Arizona State University.

Typically, pulsar radio emissions are broader, noisier, and less organized compared to those from club pulsars.

“In the case of club pulsars, the stripes are exceptionally distinct, contrasting sharply with the complete darkness that separates them,” explains Professor Medvedev.

“There are shining bands and voids in between, with no gradual transition. No other pulsar displays this kind of banding. This uniqueness makes the club pulsar both intriguing and complex to comprehend.”

While former models could replicate the striped pattern, they failed to account for the high contrast actually seen in club pulsars.

Professor Medvedev has found that the plasma material surrounding the club pulsar contributes to the diffraction of electromagnetic pulses, which significantly influences the neutron star’s distinct zebra pattern.

By integrating Einstein’s theory of gravity into his analysis, Medvedev discovered its crucial role in shaping the club pulsar’s zebra stripe pattern.

“Prior theoretical models could reproduce the striped pattern, but not the observed contrast. Including gravity bridged that gap,” asserts Professor Medvedev.

“The plasma in a pulsar’s magnetosphere acts as a defocusing lens, while gravity serves as a focusing lens. Plasma tends to scatter light rays, whereas gravity draws them inward. When these dual effects converge, certain paths will offset each other.”

The synergy between defocused magnetospheric plasma and focusing gravity creates in-phase and out-of-phase interference bands of radio intensity, producing zebra stripes in club pulsars.

“The nature of symmetry suggests there are at least two pathways for light,” Medvedev observes.

“When two nearly identical paths converge on an observer, they create an interferometer. The signals amalgamate, reinforcing each other at specific frequencies (in phase) to yield bright bands, while at others (out of phase), they cancel each other out, generating darkness. This concept encapsulates the essence of interference patterns.”

“Little additional physics appears necessary to qualitatively explain the stripes.”

“Yet, quantitative enhancements could be implemented; the current model includes gravity in a static, lowest-order approximation.”

“Since pulsars rotate, incorporating rotational effects might lead to significant quantitative, if not qualitative, changes.”

The new research is set to be published in the Plasma Physics Journal.

_____

Mikhail V. Medvedev. 2026. Theory of the dynamic spectrum of club pulsar high-frequency interpulse stripes. Plasma Physics Journal, in press. arXiv: 2602.16955

Source: www.sci.news

Unlocking the Nine Hidden Secrets That Weigh Us Down Inside

Damn it! Could you please keep a secret?

Yana Iskayeva/Getty Images

On average, individuals conceal nine different secrets, ranging from personal lies to clandestine romantic affairs. This accumulation can weigh heavily, as secrets often infiltrate our thoughts without conscious effort. While confessions may alleviate some emotional burden, many secrets remain too sensitive to divulge. Consequently, researchers are exploring psychological coping mechanisms.

“People often find themselves pondering their secrets during routine activities like showering or commuting,” explains Val Bianchi from the University of Melbourne, Australia. “These unwanted thoughts can be distressing, creating a cycle where individuals ruminate on their secrets and subsequently feel worse.”

Bianchi has dedicated years to investigating the psychological impact of secrecy and strategies for mitigation. Her latest findings were supported by the Australian National Intelligence Agency, considering that intelligence personnel must safeguard crucial secrets to protect national security, necessitating effective management strategies.

“The enigma surrounding CIA operatives is intriguing. How do they safeguard vital secrets and resume normalcy afterward?” questions Lisa Williams from the University of New South Wales in Australia, who was not involved in this research.

To delve deeper into the connection between secrets and well-being, Bianchi and her team surveyed 240 individuals online, asking participants to identify secrets spanning 38 categories, including deception, infidelity, theft, addiction, and self-harm.

Respondents reported keeping an average of nine distinct secrets. The most prevalent included lie-related secrets (78% of participants) and dissatisfaction with personal or others’ appearances (71%). Other frequent secrets involved financial matters (70%), unexpressed romantic feelings (63%), and sexual behavior (57%).

Participants then pinpointed their most significant secret and maintained a diary for two weeks regarding their feelings. They generally noted that their most crucial secret was negative, prompting reflective thoughts filled with worries and concerns.

Bianchi’s prior research revealed that significant secrets occupy individuals’ thoughts approximately every two hours. Often, they surface during low-engagement tasks, allowing space for reflection, she notes.

Interestingly, the ability to keep secrets may have evolved to enhance group cohesion despite their burdensome nature on individuals. By concealing information, one can prevent harm, embarrassment, or loss of social standing. “For instance, if a colleague is under investigation, a person may choose silence over gossip to protect their workplace reputation,” Bianchi adds.

In certain cases, unveiling a secret may bring relief. Sharing it with empathetic individuals, such as therapists or through confessionals, can alleviate emotional burdens, according to Bianchi.

Conversely, some secrets, like classified information held by intelligence agents, are unsuitable for disclosure. In such instances, the individual might find it beneficial to express feelings associated with the secret without revealing specifics. Bianchi suggests that distraction techniques may also prove useful, and her team aims to research these further.

Williams emphasizes that established emotional regulation methods may also aid those grappling with secrets. “If you are unable to eliminate a secret because it’s job-related or for other reasons, addressing the negative feelings related to it is crucial,” she states. “Ignoring or suppressing negative emotions is generally unproductive; therefore, reframing them positively could be beneficial.”

For those outside the intelligence sector, writing privately about secrets and their emotional impact can be particularly therapeutic. James Pennebaker from the University of Texas at Austin previously demonstrated that journaling about emotions can offer significant mental health benefits. “My research indicates that individuals experiencing major life changes are less likely to encounter health issues if they openly discuss these events,” he explains.

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Source: www.newscientist.com

Unveiling Secrets: VLT Shares Hidden Truths of an Elderly Couple

Stunning New Images from Ball: The Spectropolarimetric High-Contrast Exoplanet Research Instrument on ESO’s Very Large Telescope (VLT) Showcase the Intricate Interactions of Gas and Dust Ejected by the Dual Stars in the AFGL 4106 System.



Tomassini et al. characterized the physical and morphological properties of AFGL 4106, a binary star system of two evolved massive stars. Image credit: ESO / Tomassini et al..

“Before a star reaches the end of its life cycle, it expels massive amounts of gas and dust that contribute to the formation of a growing nebula,” stated Dr. Gabriel Tomassini from the Côte d’Azur Observatory and colleagues.

“The massive stars in the AFGL 4106 system are in advanced but distinct stages of their lifecycle, with one having shed enough mass to form a surrounding dusty envelope.”

In their recent study, the authors meticulously map this cosmic debris to identify the characteristics of AFGL 4106’s central star.

“Imaging objects near a bright star presents significant challenges due to the star’s overwhelming brightness. In fact, the central star appears black as its brilliance saturates the image detectors,” noted the researchers.

“Fortunately, the VLT’s SPHERE instrument excels at managing significant light contrasts, enabling detailed observation of both the luminous stars and their darker surrounding nebulae for the first time.”

“It also corrects for atmospheric turbulence, providing remarkably clear images.”

The nebula’s unique shape indicates that the companion star significantly affects the gas outflow from the dying star, introducing asymmetry and distorting the gas and dust cloud from a perfectly spherical shape.

“Our findings place constraints on the physical properties and evolutionary status of the system,” concluded the astronomers.

“This research enhances our understanding of mass loss processes in massive binary stars and the morphology of nebulae surrounding evolved stars.”

Results from this study are detailed in the journal Astronomy and Astrophysics.

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G. Tomassini et al.. 2026. Characterizing the post-red supergiant binary system AFGL 4106 and its complex nebula with SPHERE/VLT. A&A 706, A5; doi: 10.1051/0004-6361/202557705

Source: www.sci.news

Scientists Discover Secrets of Swirling Plume-Like Structures Beneath Greenland Ice Sheet

For years, glaciologists have been intrigued by the peculiar plume-like structures hidden beneath the Greenland Ice Sheet. Recent research conducted by scientists from the University of Bergen, NASA’s Goddard Space Flight Center, and the University of Oxford indicates that these enigmatic features are the result of thermal convection—an intriguing process typically associated with Earth’s mantle.

Location of a large plume-like structure (triangle) within the Greenland Ice Sheet. Credit: Leysinger Vieli et al., doi: 10.1038/s41467-018-07083-3 / Law et al., doi: 10.5194/tc-20-1071-2026.

“Typically, we perceive ice as a solid material, so the revelation that parts of the Greenland Ice Sheet experience heat convection—similar to cooking pasta— is both extraordinary and fascinating,” said study co-author Professor Andreas Born from the University of Bergen.

“The realization that thermal convection can occur within ice sheets defies our expectations,” remarked lead author Dr. Robert Loh, also from the University of Bergen.

“However, the ice is at least a million times softer than Earth’s mantle, making the physics align. It’s truly a remarkable phenomenon in nature.”

“These findings could play a crucial role in reducing uncertainties in models predicting ice sheet mass balance and sea level rise,” added Professor Born.

Deep ice is found to be approximately ten times softer than previously assumed, but this does not imply a faster melting rate.

“Enhancing our understanding of ice physics is vital for greater certainty regarding future conditions; nonetheless, softer ice alone does not guarantee accelerated melting or increased sea levels. Further studies are necessary to explore this,” Dr. Loh emphasized.

Although these findings do not predict imminent disasters in Greenland or elsewhere, they underscore the complex and dynamic nature of this region.

“Greenland and its ecosystem are indeed unique,” Dr. Loh commented.

“The ice sheet is over 1,000 years old and is the only one on Earth that coexists with a culture and established communities along its edges.”

“Understanding the processes beneath the ice will better equip us to handle the changes occurring along coastlines globally.”

Read more about the research in the upcoming publication in Cryosphere this month.

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R. Law et al. 2026. Investigating the conditions under which convection is likely to occur within the Greenland Ice Sheet. Cryosphere 20: 1071-1086; doi: 10.5194/tc-20-1071-2026

Source: www.sci.news

Exploring the Universe: Unlocking Fundamental Quantum Secrets Yet to be Discovered

Conceptual diagram of quantum fluctuations

We May Never Know the Universal Wave Function

Victor de Schwanberg/Science Photo Library/Getty Images

From the perspective of quantum physics, the universe may be fundamentally agnostic in some respects.

In quantum physics, every object, such as an electron, corresponds to a mathematical entity known as a wave function. This wave function encodes all details regarding an object’s quantum state. By combining the wave function with other equations, physicists can effectively predict the behavior of objects in experiments.

If we accept that the entire universe operates on quantum principles, then even larger entities, including the cosmos itself, must possess a wave function. This perspective has been supported by iconic physicists like Stephen Hawking.

However, researchers like Eddie Kemin Chen from the University of California, San Diego and Roderich Tumulka from the University of Tübingen in Germany, have demonstrated that complete knowledge of the universal wave function may be fundamentally unattainable.

“The cosmic wave function is like a cosmic secret that physics itself conspires to protect. We can predict a lot about how the universe behaves, yet we remain fundamentally unsure of its precise quantum state,” states Chen.

Previous studies assumed specific forms for the universal wave function based on theoretical models of the universe, overlooking the implications of experimental observations. Chen and Tumulka began with a more practical inquiry: Can observations help in identifying the correct wave function among those that reasonably describe our universe?

The researchers utilized mathematical outcomes from quantum statistical mechanics, which examines the properties of collections of quantum states. A significant factor in their calculations was the realization that the universal wave function depends on numerous parameters and exists in a high-dimensional abstract state.

Remarkably, upon completing their calculations, they found that universal quantum states are essentially agnostic.

“The measurements permissible by the rules of quantum mechanics provide very limited insight into the universe’s wave function. Determining the wave function of the universe with significant precision is impossible,” explains Tumulka.

Professor JB Manchak from the University of California, Irvine states that this research enhances our understanding of the limits of our best empirical methods, noting that we essentially have an equivalent to general relativity within the framework of quantum physics. He adds that this should not come as a surprise since quantum theory was not originally designed as a comprehensive theory of the universe.

“The wave function of a small system or the entire universe is a highly theoretical construct. Wave functions are meaningful not because they are observable, but because we employ them,” remarks Sheldon Goldstein from Rutgers University. He further explains that the inability to pinpoint a unique, accurate universal wave function from a limited range of candidates may not be problematic, as any of these functions could yield similar effects in future calculations.

Chen expresses hope to connect his and Tumulka’s research with the exploration of large-scale systems smaller than the universe itself, especially through techniques like shadow tomography, which aim to determine the quantum state of such systems. However, the philosophical consequences of their work are equally crucial. Tumulka emphasizes the need for caution against over-relying on positivist views that deem non-experimental statements as meaningless or unscientific. “Some truths are real, but cannot be measured,” he asserts.

This rationale might influence ongoing debates regarding the interpretation of quantum mechanics. According to Emily Adlam from Chapman University in California, the new findings advocate for incorporating more components into the interpretation of quantum equations, such as wave functions, emphasizing the relationship between quantum objects and individual observer perspectives, moving away from the assumption of a singular objective reality dictated by a single mathematical construct.

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Source: www.newscientist.com

Unlocking the Secrets of Jupiter and Saturn: How Polar Cyclones Expose Hidden Interiors

A groundbreaking study by planetary scientists at the Massachusetts Institute of Technology (MIT) reveals how the significant differences in polar vortex patterns between Jupiter and Saturn are influenced by the unique properties of their deep interiors. These findings offer valuable insights into the structure of these gas giants.

This composite image, captured by the JIRAM instrument aboard NASA’s Juno satellite, depicts a central low-pressure system at Jupiter’s north pole along with eight surrounding low-pressure systems. The colors in this image represent radiant heat, revealing temperature variations in their cloud layers. Image credit: NASA / JPL-Caltech / SwRI / ASI / INAF / JIRAM.

“Our study shows that the internal properties, including the softness of the vortex base, influence the fluid patterns observed at the surface,” explained Dr. Wang-Ying Kang from MIT.

The research was inspired by stunning images of Jupiter and Saturn obtained from NASA’s Juno and Cassini missions.

Since 2016, Juno has been orbiting Jupiter and revealing astonishing details about its north pole and intricate spiral formations.

The data suggest that each vortex on Jupiter is immense, measuring around 5,000 km (3,000 miles) in diameter.

Meanwhile, Cassini documented Saturn’s iconic polar vortex, which spans a singular hexagonal shape approximately 29,000 km (18,000 miles) wide, before its controlled descent into Saturn’s atmosphere in 2017.

“Despite their similarities in size and primary composition of hydrogen and helium, deciphering the differences in polar vortices between Jupiter and Saturn has been challenging,” noted MIT graduate student Jial Shi.

Researchers aimed to uncover the physical mechanisms behind the formation of either a single vortex or multiple vortices on these distant planets.

To achieve this, they employed a two-dimensional model of surface fluid dynamics.

While polar vortices are inherently three-dimensional, the fast rotation of Jupiter and Saturn leads to uniform motion along their rotational axes, allowing the team to effectively analyze vortex evolution in two dimensions.

“In rapidly rotating systems, fluid motion tends to be uniform along the axis,” Dr. Kang added. “This insight allowed us to convert a 3D challenge into a 2D problem, significantly speeding up simulations and reducing costs.”

With this in mind, researchers created a two-dimensional model of vortex behavior in gas giants, adapting equations that describe the evolution of swirling fluids over time.

“This equation is commonly used in various situations, including modeling cyclones on Earth,” Dr. Kang stated. “We tailored it for the polar regions of Jupiter and Saturn.”

Scientists applied the two-dimensional model to simulate fluid dynamics on gas giants in various scenarios, adjusting parameters such as planetary size, rotational speed, internal heating, and the characteristics of the fluid.

They introduced random “noise” to simulate initial chaotic fluid flow on the planets’ surfaces.

By analyzing how this fluid evolved over time across different scenarios, the researchers found that some conditions led to the formation of a single large polar vortex, akin to Saturn’s structure, while others resulted in multiple smaller vortices, similar to those on Jupiter.

Through careful examination of the parameters affecting each scenario, the study identified a unifying mechanism: the softness of the vortex base constrains the size that vortices can attain.

The softer and lighter the gas at the bottom of the vortex, the smaller the resulting vortex, enabling multiple smaller vortices to exist at Jupiter’s poles. Conversely, a denser and harder base permits the growth of sizable vortices, manifesting as a singular entity like Saturn.

If this mechanism holds for both gas giants, it could suggest that Jupiter has a softer internal composition, while Saturn may contain denser materials.

“The fluid patterns we observe on the surface of Jupiter and Saturn may provide insights into their interior compositions,” Shi remarked.

“This is crucial because Saturn’s interior likely harbors richer metals and more condensable materials, leading to stronger stratification than that found in Jupiter,” Shi added. “This will enhance our understanding of gas giant planets.”

The team’s findings will be published in the Proceedings of the National Academy of Sciences.

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Gial Sea & One In Can. 2026. Polar vortex dynamics of gas giant planets: Insights from 2D energy cascades. PNAS in press.

Source: www.sci.news

Fossils Unravel the Dietary Secrets of One of History’s Strangest Animals

Hallucigenia: One of the Strangest Animals of All Time

Hallucigenia: One of the Strangest Animals of All Time

Credit: Alamy

Among the most peculiar creatures ever to roam the Earth is Hallucigenia, a scavenger that thrived on the carcasses of Kushi jelly. Recent studies have reinvigorated our understanding of this enigmatic organism first discovered in the 1970s.

Hallucigenia measured approximately 5 cm in length and boasted an insect-like body with multiple legs and lengthy, sharp spines along its back. Its unusual morphology led paleontologists to initially reconstruct it upside down, mistaking its vertebrae for legs.

This unique creature inhabited the deep sea during the Cambrian period, roughly 539 to 487 million years ago, when various major animal groups emerged. Hallucigenia was first identified in the Burgess Shale formation in British Columbia, Canada. It shares evolutionary ties with velvet worms, tardigrades, and arthropods, a group that includes insects and spiders.

Despite the wealth of fossils, much about the lifestyle of ancient creatures such as Hallucigenia remains a mystery. For instance, researchers have yet to determine what they fed on, as existing fossils have not preserved intestinal contents.

Harvard University’s Javier Ortega Hernandez has conducted a thorough investigation of the Burgess Shale fossils. He revisited the original description of Hallucigenia in 1977, which had not been revisited until now.

Among the findings was a fragment of a severely damaged, soft-bodied gelatinous organism measuring 3.5 cm by 1.9 cm, which Ortega Hernández identified as a comb jelly (ctenophore).

He proposed that the spines attributed to Hallucigenia represent a group of seven individuals that voraciously fed on a dead Kushi jelly, which had drifted to the ocean floor. This event likely involved suction feeding, as they were all eventually enveloped in sediment and transformed into fossils.

Ortega Hernández opted against interviews for New Scientist since this research is currently pending peer review.

“This represents a fascinating ecological interaction,” remarks paleontologist Alison Daly from the University of Lausanne, Switzerland, referring to these findings as “snapshots” that capture fleeting moments in the fossil record, lasting perhaps only a few minutes or hours.

As noted by Daly, Hallucigenia thrived in the nutrient-poor depths of the ocean, so it’s plausible that these creatures survived by rapidly locating and consuming abundant food sources like deceased Kushi jelly. “Suction feeding is highly effective for soft-bodied organisms,” she comments.

However, Jean-Bernard Caron of the Royal Ontario Museum in Toronto expresses some skepticism. The fact that fossils of ctenophores were found in proximity to Hallucigenia does not definitively indicate interaction, he suggests, as an underwater landslide could have transported them to the same resting place.

Furthermore, Caron proposes an alternative interpretation: the discovered fossils may simply be detached spines, indicating that these creatures may have shed their skin as they grew.

Dinosaur Hunting in Mongolia’s Gobi Desert

Embark on an exhilarating expedition to uncover dinosaur remains in the vast wilderness of the Gobi Desert, one of the world’s premier paleontology hotspots.

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Discovering a Barred Spiral Galaxy: Unveiling Cosmic Secrets Just 2 Billion Years Post-Big Bang

Using high-resolution images, NIRCam, a near-infrared camera aboard the NASA/ESA/CSA James Webb Space Telescope, has led astronomers to discover COSMOS-74706, one of the earliest known barred spiral galaxies. This discovery is pivotal in shaping our understanding of cosmic evolution.



COSMOS-74706: Unsharp mask overlaid on F200W, F277W, and F356W filter configurations. The white lines represent logarithmic spirals along the galaxy’s arm structure while the lines indicate the north-south bar structure. Image credit: Daniel Ivanov.

The barred spiral galaxy COSMOS-74706 existed approximately 11.5 billion years ago.

“This galaxy developed its bar just two billion years after the universe’s inception,” stated Daniel Ivanov, a graduate student at the University of Pittsburgh.

“Stellar bars are linear features found at the centers of galaxies, confirming their namesakes.”

COSMOS-74706’s bar comprises a dense collection of stars and gas, appearing as a bright line bisecting the galaxy when viewed perpendicularly to its plane.

Stellar bars significantly influence a galaxy’s evolution, funneling gas from the outskirts into the center, which feeds the supermassive black hole and can inhibit star formation within the galactic disk.

While previous reports identified barred spiral galaxies, their analyses were inconclusive due to the less reliable optical redshift methods compared to the spectroscopy used for COSMOS-74706 verification.

In some instances, a galaxy’s light was distorted by a massive object, leading to a phenomenon known as gravitational lensing.

“Essentially, COSMOS-74706 is the most redshifted spectroscopically confirmed lensless barred spiral galaxy,” Ivanov noted.

“We were not surprised to find barred spiral galaxies so early in the universe’s timeline.”

“In fact, some simulations suggest the bar formed at redshift 5, or roughly 12.5 billion years ago.”

“However, I believe we shouldn’t expect to find many of these galaxies just yet.”

This discovery helps refine the timeline for bar formation, making it a significant finding.

Ivanov and colleagues presented their discoveries on January 8th during the 247th Annual Meeting of the American Astronomical Society.

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Daniel Ivanov et al. 2026 zspec>3 barred spiral without lens. AAS247

Source: www.sci.news

Centuries-Old Greenland Sharks Thrive Despite Heart Disease: Secrets to Their Longevity Revealed

Greenland shark

Greenland Sharks’ Longevity: A Closer Look at Their Heart Health

Credit: Doug Perrine/naturepl.com

Greenland sharks are believed to live between 250 to 500 years. Remarkably, even at 150 years old, they show signs of severe age-related heart disease.

Interestingly, some body parts like their eyes seem resilient to aging and cancer, suggesting that not all organs in this ocean predator are equally affected by age. Despite this resilience, research has shown that Greenland sharks (Somniosus microcephalus) do have significant heart health issues, yet they show no obvious functional decline or reduced lifespan.

Alessandro Cellerino and his team at the École Normale Supérieure in Pisa, Italy, conducted a study on six Greenland sharks (four females and two males), each exceeding 3 meters in length, and found their results to be “truly surprising.”

The researchers estimate that all six specimens were between 100 and 150 years old. They employed various advanced microscopic techniques, including high-resolution fluorescence and electron microscopy, to investigate the animals’ heart tissues.

“The hearts of Greenland sharks exhibited significant fibrotic changes and an abundance of aging markers such as lipofuscin and nitrotyrosine,” stated Cellerino.

In humans, elevated fibrosis levels in heart tissues typically signal age-related heart problems and potential heart failure.

Nevertheless, Cellerino noted that the substantial accumulation of lipofuscin, associated with mitochondrial impairment, does not appear detrimental and “does not adversely affect the lifespan of Greenland sharks.”

The high levels of nitrotyrosine, another marker associated with heart inflammation and oxidative stress, suggest that Greenland sharks may have developed a unique evolutionary strategy for enduring chronic oxidative damage, as opposed to merely attempting to avoid it.

“Initially, I thought what I observed under the microscope was a technical artifact or an error in the experiment,” he remarked.

To compare, the researchers also examined another deep-sea fish, the velvet-bellied lantern shark (Etmopterus spinax), along with the turquoise killifish (Nosobranchius furzeri), a species noted for its fleeting lifespan of mere months, residing in seasonal pools across the African savannah.

Elena Chiavatti mentioned that while the Greenland shark’s heart is highly fibrotic, the other species showed no signs of such conditions, as indicated in the Scuola Normale Superiore paper.

“The accumulation of nitrotyrosine is significant in Greenland sharks, whereas lantern sharks show no accumulation,” Chiavatti commented.

Despite their brief lifespans, killifish share similar nitrotyrosine aging markers with Greenland sharks, she added.

Cellerino emphasized that Greenland sharks exhibit extraordinary resilience to aging, particularly in their hearts. “The existence of organisms like Greenland sharks that endure aging without any noticeable heart decline is remarkable,” he noted. “These findings underscore the exceptional heart resilience of Greenland sharks and suggest potential insights into healthy aging.”

João Pedro Magalhães from the University of Birmingham highlighted that the study underscores our limited understanding of the molecular and cellular aging mechanisms, including which changes are detrimental and which are advantageous.

Furthermore, Magalhães urged for a broader variety of animals in aging and lifespan research. “Most scientists, including myself, primarily use short-lived species like earthworms, mice, and rats, but remarkable long-lived species such as Greenland sharks and bowhead whales could hold the keys to longevity,” he urged.

Source: www.newscientist.com

BepiColombo Mission Launches in 2026: Unveiling the Secrets of Mercury

Artist’s Impression of BepiColombo Spacecraft Near Mercury

Source: ESA/ATG Media Lab

In 2026, the highly anticipated BepiColombo spacecraft is set to orbit Mercury, promising to unlock the planet’s long-standing mysteries.

BepiColombo is a collaborative mission involving the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA). This intricate mission includes the Mercury Planetary Orbiter (MPO) and the Mercury Magnetospheric Orbiter (Mio), tethered to the Mercury Transport Module (MTM).

Since its launch in 2018, the MTM has made six flybys of Mercury, skillfully utilizing the planet’s gravity to facilitate its descent into orbit, a method pioneered by Giuseppe “Bepi” Colombo.

This mission has already gathered crucial scientific insights, including data about the solar wind and high-resolution imagery of Mercury’s surface. However, the MPO’s advanced instruments, including X-ray spectrometers, remain inactive due to obstructions by the MTM.

In September 2026, the MPO and Mio will detach from the MTM, embarking on their final descent into orbit, completing this phase by November when their focus will shift to detailed studies of Mercury.

According to Charlie Feldman, a researcher at the University of Leicester who contributed to the MPO’s instruments, “We’re hopeful that our equipment will function as intended. With the extensive time invested in building it, the excitement comes with a degree of anxiety.”

Alongside capturing intricate details of Mercury’s magnetosphere, the MPO will extensively map and analyze the planet’s surface using its spectrometer and other tools. “This represents the first X-ray imagery of an extraterrestrial surface,” Feldman noted.

Such observations may unravel enigmas surrounding the significant X-ray emissions detected from Mercury’s night side in prior missions. Additionally, the spacecraft will assess X-rays emitted from the sun-facing side, unearthing new insights into Mercury’s geological composition and evolution. “Deciphering how planets formed gives us a broader understanding of solar system dynamics,” Feldman stated.

Exploring Space and Astronomy in Japan: The Land of the Rising Sun

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2026 Mars Mission Aims to Uncover Satellite Secrets

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MMX spacecraft visiting Mars moon

MMX Spacecraft to Explore Mars Moons

Credit: JAXA

The mystery surrounding the origins of Mars’s moons, Phobos and Deimos, may soon be unraveled with the launch of the MMX spacecraft, set to return samples from Phobos to Earth in 2026.

“While we understand the origin of Earth’s moon, the origins of Phobos and Deimos remain unclear,” says Emelia Brannagan-Harris from the Natural History Museum in London. “By exploring the origins of these moons, we aim to gain insights into Mars’s evolutionary history.”

There are two leading theories regarding how these moons came to orbit Mars. The first theory suggests that they are remnants of asteroids that either merged and then separated or closely orbit each other. The second theory posits that they may have formed from an asteroid impact on Mars, similar to the formation of Earth’s moon.

Currently, evidence supports neither scenario definitively. However, the Japan Aerospace Exploration Agency’s Mars Moon Explorer (MMX), scheduled for launch in 2026, is equipped to clarify which theory holds true. This spacecraft will observe both moons and send a rover to gather samples from Phobos’s surface and subsurface.

If the observations reveal a prevalence of carbon-rich materials and water, it could support the theory of asteroid capture. Conversely, if such materials are absent, we may need to await the analysis of the collected samples, expected to return to Earth by 2031.

The Phobos samples will include both surface material and samples from beneath the surface. Testing this material will allow scientists to investigate signs of past dissolution, potentially indicating interactions with Mars’s atmosphere or surface.

Regardless of the origins of Phobos, its close orbit around Mars suggests it may hold well-preserved samples from early Mars. “Phobos might also contain ancient debris from Mars’s period of liquid water, offering significant insights into the planet’s history,” Brannagan-Harris emphasizes.

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Unlocking Secrets of Dark DNA: Insights from Human-Plant Hybrid Cells

Groundbreaking Discovery: Plant and Human DNA Interaction

Image Credit: S Saraus/Shutterstock

How crucial is our genome? While some researchers argue that most of our DNA is active and thus essential, others suggest that even random DNA could show high activity levels. Current studies focus on human cells that incorporate substantial segments of plant DNA, shedding light on this topic. According to New Scientist, the largely random plant DNA exhibits nearly equal activity to human DNA.

This research indicates that much genomic activity may lack purpose, further supporting the theory that a significant portion of the human genome is ‘junk DNA.’

“Most activity can be attributed to background noise,” says Brett Aidy, a researcher at the University of Auckland, New Zealand. “This aligns with the concept of junk DNA.”

The primary role of DNA is to encode instructions for protein synthesis, which are essential molecular machines responsible for cellular functions. This genetic blueprint is transcribed into messenger RNA, which transports the instructions to ribosomes, the cellular machinery for protein production.

Previously, it was assumed that nearly all DNA was involved in coding proteins, but now we understand that just 1.2% of the human genome directly encodes proteins. What, then, is the destiny of the remaining DNA?

Since the 1960s, biologists have claimed that much of it is unproductive. While it’s true that some non-coding DNA plays vital roles, ongoing discoveries of functional elements won’t redefine the overarching notion that non-coding DNA is largely inert.

For instance, a 2011 study revealed that: only about 5% of the genome is evolutionarily conserved. Evolution appears indifferent to the rest. Proponents of the junk DNA theory highlight the variability in genome sizes among species. Why, for example, does an onion require five times more DNA than a human? Additionally, why do lungfish possess genomes that are thirty times larger?

In contrast, other scientists explore whether human DNA has functional roles, even if converted RNA lacks known applications. The ENCODE project’s 2012 findings suggest that over 80% of the human genome is active in some form. This raised questions about its classification as junk DNA. Some researchers have coined the term “dark DNA” for non-coding regions whose purpose remains unclear.

In reaction to ENCODE’s claims, in 2013, Sean Eddy from Harvard University proposed a controversial random genome project, hypothesizing that injecting synthetic random DNA into human cells would yield similar activity as noted in ENCODE’s findings.

“If this holds true, the results will call into question the interpretation of activity as indicative of functionality,” he posits. Austin Ganley, also from Auckland University, echoes this sentiment, emphasizing the need for baseline comparisons in the research of functional versus non-functional DNA.

However, synthesizing DNA is resource-intensive. So far, only limited attempts at random genome projects have focused on small DNA segments.

Yet, when Adey and Ganley discovered that Japanese researchers had successfully created human-plant hybrid cells with DNA segments from Thale cress (Arabidopsis), they recognized it as potentially the most extensive random genome experiment to date.

Eddy, though not directly involved, acknowledges the significance. Plants and animals diverged from a common ancestor over 1.6 billion years ago, allowing time for random mutations to accumulate within non-coding DNA segments of Arabidopsis.

Following initial validations that plant DNA behaves as random DNA in human cells, Adey and Ganley assessed DNA-to-RNA conversion rates per 1000 base pairs of non-coding DNA. If DNA to RNA conversion implies functionality, plant DNA should minimal undergo this transformation. Surprisingly, they observed slightly less activity—about 80% of the starting sites per kilobase when compared to human non-coding DNA from Arabidopsis.

This strongly indicates that the genomic activity detected by ENCODE is merely background noise.

“This illustrates the inherent noise in biological systems,” comments Chris Ponting from the University of Edinburgh, UK. “This sequence’s biochemical activity holds no function within human cells.”

“Sophisticated investigations like this were essential,” asserts Dan Graul from the University of Houston, Texas. “This adds experimental evidence confirming the long-held belief that a majority of the human genome is unnecessary. The term ‘dark DNA’ is simply a fantasy created by those envious of physics.”

Although imperfect biological systems produce noise, this noise can lead to beneficial variations that natural selection may target, notes Ganley.

The research team remains puzzled about a 25% increase in human DNA activity. “We still need to investigate the cause behind this finding,” Ganley states.

While some additional RNA generated might serve functional purposes, this does not diminish the overall perspective of junk DNA. Ongoing research is employing machine learning techniques to identify potentially meaningful activities amidst the noise.

The research team intends to publish their outcomes, though they have yet to complete their findings.

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Source: www.newscientist.com

Pompeii’s Construction Site Unveils the Secrets of Roman Concrete Production

Ceramic roof tiles and tuff blocks uncovered at an ancient construction site in Pompeii

Pompeii Archaeological Park

A recently uncovered ancient building site in Pompeii, preserved since the eruption of Mount Vesuvius, has enabled archaeologists to finally understand the process behind Roman concrete production.

Located near Naples, Pompeii was entombed under layers of volcanic ash in 79 AD. Excavation efforts commenced in the 1880s but were halted until early 2023, when extensive new diggings began.

The latest excavations revealed a nearly intact concrete workshop, featuring inscriptions on the walls detailing work schedules and material quantities. Numerous concrete tools, heaps of quicklime, and salvaged roof tiles were also discovered.

Admija Masic of the MIT research team expressed amazement at the site’s remarkable preservation, stating it provides insights into Roman concrete techniques that “laboratory recreations simply cannot achieve.”

“The material was just as it was at the moment the eruption halted the city,” Masic mentioned. “Studying it felt as if I were transported back to 79 A.D., standing beside the workers mixing and pouring concrete.”

The team’s revelations indicate that established assumptions about Roman concrete production should be reconsidered.

Historical records suggest that Romans utilized slaked lime (calcium hydroxide) for concrete, combining it with water before mixing it with other components like volcanic ash.

Contrarily, chemical analyses of dry, premixed materials found in Pompeian workshops show that ancient builders actually employed a hot mixing technique using quicklime, or calcium oxide. This method involved combining the lime with all other ingredients including volcanic ash and minerals, before adding water, which was heated as a result of the chemical reaction, causing some concrete to set.

“Our findings demonstrate that quicklime was crucial to structural concrete,” Masic states. “In contrast, slaked lime was typically used for finish mortar and plaster, where a smooth surface and workability were paramount.”

The hot-mixing method offers the advantage of lime remnants, known as crusts, remaining in the concrete post-hardening, which can autonomously heal small cracks and defects.

“These lime fragments serve as reservoirs of calcium that can dissolve and recrystallize in crevices and fractures, or interact with volcanic ash to enhance the microstructure of the concrete,” Masić explains.

A modern concrete worker would easily understand the Roman concrete-making technique at Pompeii and could seamlessly transition into the workshop to start working, he states. “The chemistry is ancient, yet the technology is readily recognizable.”

Historic Herculaneum – explore Vesuvius, Pompeii, and ancient Naples

Embark on a captivating expedition through the remnants of Mount Vesuvius, Pompeii, and Herculaneum, where history and archaeology unfold.

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Source: www.newscientist.com

Lava Tubes Hold Secrets of Unidentified ‘Microbial Dark Matter’ – Sciworthy

Mars’ surface is not currently conducive to human life. It presents extreme challenges, including a tenuous atmosphere, freezing temperatures, and heightened radiation levels. While Earth’s extremophiles can tackle some obstacles, they can’t handle them all simultaneously. If Martian life exists, how do these microbes manage to survive in such an environment?

The answer might lie within caves. Many researchers believe that ancient lava tubes on Mars formed billions of years ago when the planet was warmer and had liquid water. Caves serve as shelters against radiation and severe temperatures found on the Martian surface. They also host the nutrients and minerals necessary for sustaining life. Although scientists cannot yet explore Martian caves directly, they are examining analogous sites on Earth to establish parameters for searching for life on Mars.

A research team, led by C.B. Fishman from Georgetown University, investigated the microorganisms inhabiting the lava tubes of Mauna Loa, Hawaii, to learn about their survival mechanisms. Thanks to careful conservation efforts by Native Hawaiians, these lava tubes remain undisturbed by human activity. Researchers believe that both the rock structures in Mauna Loa Cave and the minerals formed from sulfur-rich gases bear similarities to Martian cave formations.

The team analyzed five samples from well-lit areas near the cave entrance, two from dimly lit zones with natural openings known as skylights, and five from the cave’s darkest recesses. Samples were chosen based on rock characteristics, including secondary minerals like calcite and gypsum, and primary iron-bearing minerals such as olivine and hematite.

Findings revealed significant variation in mineralogy within the cave, even over small distances. The bright samples were predominantly gypsum, while the dark samples lacked these key minerals. Instead, one dark sample was rich in iron-bearing minerals, while another contained mainly calcite, gypsum, and thenardite.

To identify the microorganisms within the samples, the team employed the 16S rRNA gene to recognize known microbes and understand their relationships. They also reconstructed complete genomes from cave samples using a method called metagenomic analysis. This technique is akin to following instructions to assemble various models from mixed DNA fragments. Such insights help researchers grasp how both known and unknown microorganisms thrive in their respective environments.

The team discovered that approximately 15% of the microbial genomes were unique to specific locations, with about 57% appearing in less than a quarter of the samples. Furthermore, microbial communities in dark regions exhibited less diversity and were more specialized compared to those in well-lit areas. While dark sites were not as varied as bright ones, each supported its own distinct microbial community.

To explain this difference, the researchers proposed that dark microbes have limited survival strategies since photosynthesis is impossible without light. Instead, these microbes extract chemical energy from rocks and decaying organic matter, much like how humans derive energy from breaking down food.

The findings from metagenomic data indicated that even though sulfur minerals were abundant, very few microorganisms specialized in sulfur consumption were present. This aligns with expectations in oxygen-rich environments, as oxygen tends to react with sulfur, making it unavailable to microorganisms. The researchers suggested that sulfur-metabolizing microbes may be more commonly found in low-oxygen environments, such as Mars.

Additionally, the study revealed that a majority of the microorganisms found in these caves were previously undescribed by science, contributing to what is referred to as microbial dark matter. The existence of such unknown microorganisms hints at novel survival strategies.

The research team concluded that lava tube caves could be a crucial source of new microorganisms, aiding astrobiologists in their quest to understand potential life forms on Mars. They recommended that future investigations into Martian caves should focus on detecting small-scale microbes in various mineral contexts. Over time, the interplay between cave conditions and Martian microorganisms may be unveiled as Mars becomes less habitable.


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Source: sciworthy.com

Skeleton ‘Pregnancy Test’ May Unlock Secrets of Ancient Maternal Lives

Skeleton of a woman holding a baby in her left arm, interred in an Anglo-Saxon cemetery in Screnby, England

Dr Hugh Wilmot, University of Sheffield

Researchers are now investigating ancient pregnancy tests undertaken on women from centuries past.

For the first time, scientists have identified levels of estrogen, progesterone, and testosterone in remains of women from the 1st to the 19th century. Some of these women were entombed with their unborn children. This revelation indicates that historic bones and teeth can retain identifiable traces of specific sex hormones, which might aid in discerning which individuals at archaeological sites were pregnant or had recently given birth at the time of their demise, according to Amy Barlow from the University of Sheffield, UK.

“The physiological and emotional impacts of pregnancy, miscarriage, and childbirth carry profound significance for women, yet they remain largely unexplored in archaeological records,” she notes. “This technique could revolutionize how we comprehend the reproductive narratives of ancient populations. We’re genuinely excited about it.”

Establishing pregnancy in ancient individuals can be challenging, particularly if the fetus lacks a visible skeleton. Even second- and third-trimester fetuses may be overlooked due to their bones resembling those of the mother’s hands, often placed on the abdomen during burial.

Contemporary pregnancy tests evaluate hormone levels such as hCG in blood or urine. However, hCG degrades rapidly, leaving minimal evidence in the body.

In contrast, progesterone, estrogen, and testosterone can persist in tissues for extended periods. Recent studies have demonstrated that these steroid hormones are also present in human blood, saliva, and hair. Samples from long-buried Egyptian mummies.

To explore the likelihood of identifying ancient pregnancies, Barlow and her team analyzed rib fragments and one neck bone from two men and seven women interred in four British cemeteries. They also examined teeth from another male.

Two of the women had fetal remains discovered within them, and another two were buried alongside their newborns. The gender of the others was established through DNA analysis.

The research team ground each sample into powder and employed chemical techniques to extract the steroid hormones. Laboratory tests subsequently identified the estrogen, progesterone, and testosterone levels in each of the 74 samples.

Estrogen was only found in four samples, without a discernible pattern. This may be due to its quicker breakdown compared to progesterone or testosterone, which may not accumulate as efficiently in tissues.

However, between the 11th and 14th centuries, heightened levels of progesterone were discovered in the spines of young women who died while carrying full-term fetuses. A later pregnant woman interred in the 18th or 19th century also exhibited elevated progesterone in her ribs. Moderate progesterone levels were noted in the dental plaque of two women buried with their infants during the 5th or 6th century.

Interestingly, no testosterone was detected in the bones or teeth of these four women. However, one woman who was buried with her premature infant had trace amounts of testosterone in her dental plaque. In contrast, three unrelated women from 8th- to 12th-century sites and Roman tombs showed testosterone in all layers of their ribs and teeth.

Low testosterone levels are known to play a crucial role in women’s health, so its discovery in these samples isn’t unexpected, Barlow states. “However, the absence of testosterone may indicate that she was recently or currently pregnant at the time of her death,” she adds.

“This intersection of archaeology and hormone science is exhilarating and unforeseen,” states Alexander Komninos from Imperial College London. “These methods will enhance our ability to detect pregnancy in human remains with greater precision, providing deeper insights into ancient pregnancies.”

Nevertheless, while the findings show promise, additional research is essential to clarify many aspects, according to Barlow. For instance, moderate progesterone levels were frequently found in the bones and inner teeth of men, but the reasoning behind this remains unclear, she comments. “Interpretation is quite cautious at this junction.”

Walking through Hadrian’s Wall and Rome’s innovations: England

Join this immersive walking tour along Hadrian’s Wall, one of Great Britain’s most iconic ancient structures and a UNESCO World Heritage Site.

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Source: www.newscientist.com

Scientists Might Have Unraveled the Secrets of Teotihuacan’s Written Language

The civilization that thrived in Teotihuacan during the Classic period holds a distinctive position in Mesoamerican history. Today, it continues to represent Mexico’s rich heritage and is among the most frequented archaeological locations in the Americas. However, inquisitive tourists often find that the ethnic and linguistic connections of the Teotihuacanos are still a mystery. While the deciphering of other Mesoamerican writing systems has unveiled significant insights about dynasties and historical occurrences, researchers have yet to extract information about Teotihuacan society from their own written artifacts. The topic of writing in Teotihuacan indeed provokes several intriguing questions. Do the symbols depicted in the images of Teotihuacan represent a form of writing? If they do, what was their purpose? Were they created to be understood irrespective of language? If they indicated a specific language, which one was it? Researchers Magnus Pharaoh Hansen and Christopher Helmke from the University of Copenhagen suggest that Teotihuacan writing shares fundamental characteristics with other Mesoamerican writing systems, including the utilization of logograms based on rebus principles and a technique termed “double spelling.” They contend that it encapsulates a specific, identifiable language: Uto-Aztecan, the direct predecessor of Nahuatl, Chora, and Huichol, and they offer a new interpretation of certain Teotihuacan glyphs.

View of the small pyramid on the east side of the Plaza de la Luna from Piramide del Sol in Teotihuacan. Image credit: Daniel Case / CC BY-SA 3.0.

Teotihuacan is a revered pre-Columbian city established around 100 BC and thrived until 600 AD.

This ancient metropolis, situated in the northeastern area of the Basin of Mexico, expanded over 20 square kilometers and housed up to 125,000 residents while engaging with other Mesoamerican cultures.

The identities of Teotihuacan’s builders and their relationships to subsequent populations remain uncertain. The reasons behind the city’s abandonment also spark debate, with theories ranging from foreign invasion, civil strife, ecological disaster, or a combination of these factors.

“There are numerous distinct cultures in Mexico, some linked to specific archaeological traditions, while others remain ambiguous. Teotihuacan exemplifies such a case,” stated Dr. Pharaoh Hansen.

“The languages they spoke and their links to later cultures are still unknown.”

“One can easily identify the Teotihuacan culture when compared to modern cultures,” added Dr. Helmke.

“For instance, the remains of Teotihuacan suggest that parts of the city were occupied by the more widely recognized Maya civilization.”

The ancient inhabitants of Teotihuacan left a collection of symbols, primarily through wall murals and decorative ceramics.

For years, researchers have debated whether these symbols represent an actual written language.

The authors assert that the inscriptions on Teotihuacan’s walls indeed record a language that is a linguistic precursor to Cora, Huichol, and the Aztec language Nahuatl.

The Aztecs, well-known in Mexican history, were thought to have migrated to central Mexico following the decline of Teotihuacan.

However, researchers claim there are linguistic connections between Teotihuacan and the Aztecs, indicating that Nahuatl-speaking peoples might have settled in the region much earlier and are in fact direct descendants of Teotihuacan’s original population.

To elucidate the linguistic parallels between Teotihuacan’s language and other Mesoamerican tongues, scientists have been working to reconstruct a much older version of Nahuatl.

“Otherwise, it would be akin to interpreting the runes on a famous Danish runestone, like the Jellingstone, using contemporary Danish. That would be an anachronism. We must attempt to read the text with a more temporally appropriate language,” explains Dr. Helmke.

Examples of logograms that make up the Teotihuacan written language. Image credit: Christophe Helmke, University of Copenhagen.

The script of Teotihuacan presents significant challenges for decipherment due to multiple factors.

One challenge is that the logograms may possess a direct semantic meaning; for instance, an image depicting a coyote directly translates to “coyote.”

In other instances, symbols must be interpreted in a rebus format, wherein the sounds represented by the depicted objects are combined to form words; however, such words are often conceptual and difficult to express as single figurative logograms.

This complexity underscores the necessity for a solid understanding of both the Teotihuacan writing system and the Uto-Aztecan language that researchers believe is encoded in the inscriptions.

To unlock the Teotihuacan linguistic riddle, one must be aware of how words were pronounced at that time.

This is why the researchers are focusing on various aspects concurrently. They are reconstructing the Uto-Aztecan language, a formidable challenge in its own right, while applying this ancient language to interpret the Teotihuacan texts.

“In Teotihuacan, pottery with inscriptions continues to be unearthed, and we anticipate that many more wall paintings will be discovered in the future,” remarked Dr. Pharaoh Hansen.

“The scarcity of additional text clearly hampers our study.”

“It would be beneficial to find the same symbol used similarly in varied contexts.”

“This would further substantiate our hypothesis, but for now, we are limited to the documentation available to us.”

Dr. Pharaoh Hansen and Dr. Helmke are enthusiastic about their recent advancements.

“Prior to our work, no one had applied a linguistically appropriate approach to deciphering this written form,” stated Dr. Pharaoh Hansen.

“Moreover, no one had successfully established that a particular logogram could hold phonetic significance applicable in contexts beyond its primary meaning.”

“Through this process, we have developed a method that can serve as a foundation for others to broaden their comprehension of the texts.”

The team’s study has been published in the journal Current Anthropology.

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Magnus Pharaoh Hansen and Christoph Helmke. 2025. Language of Teotihuacan. Current Anthropology 66(5); doi: 10.1086/737863

Source: www.sci.news

New Research Uncovers the Secrets of Burgess Shale Trilobites

Appendages of arthropods serve various functions, including feeding, locomotion, and reproduction. Fossils dating back to the Cambrian period (539-487 million years ago) provide remarkable details of extinct arthropod appendages, enhancing our understanding of their anatomy and ecological roles. However, due to the limited number of fossils and often incomplete preservation, studies on appendage functions typically depend on idealized reconstructions. This new research focuses on the paleontological species Olenoides serratus, a prolific trilobite from the Cambrian Burgess Shale, noteworthy for its numerous well-preserved specimens featuring soft tissue that allow for a detailed analysis of appendage functionality.



Olenoides serratus from Burgess Shale. Image credit: Losso et al., doi: 10.1186/s12915-025-02335-3.

Situated in British Columbia, Canada, the Burgess Shale is renowned for its exceptional fossil preservation, including soft tissues such as limbs and internal organs.

While trilobites are common in fossil records, their soft limbs are seldom preserved due to their hard exoskeleton, leading to a limited understanding of these structures.

The trilobite species Olenoides serratus offers a unique chance to investigate these appendages further.

Harvard paleontologist Sarah Ross and her team examined 156 limbs from 28 fossil specimens of Olenoides serratus to reconstruct the precise movements and functions of these ancient arthropod appendages, shedding light on one of the earliest successful aquatic animals.

“Understanding the behavior and movement of fossils poses challenges, as we cannot observe their activities like we do with living organisms,” stated Dr. Ross.

“Instead, we meticulously analyzed the morphology of numerous specimens while also utilizing modern analogues to infer how these ancient creatures lived.”

The researchers also assessed the range of motion of the legs of living horseshoe crab species Limulus polyphemus.

“Arthropods possess articulated legs composed of multiple segments that can flex upwards or downwards,” they noted.

“The range of motion is influenced by the specific directional capabilities of each joint.”

“This range, combined with the limbs’ shape and segment configuration, determines how the animal utilizes its appendages for walking, grasping, and burrowing.”

Horseshoe crabs, commonly found along the eastern coast of North America, are compared with trilobites due to their analogous behaviors.

“Despite their close relation to spiders and scorpions, horseshoe crabs are part of a different branch of the arthropod tree, whereas trilobite relationships remain ambiguous.”

The comparison arises from both animals’ adaptation of articulated limbs for navigating the seafloor.

However, the findings revealed that their similarities were minimal.

In contrast to horseshoe crabs, characterized by specialized limb joints for bending and expanding—facilitating feeding and protection—Olenoides serratus exhibited a simpler yet highly functional limb structure.

“We found that the limbs of Olenoides serratus had minimal extension, primarily far from the body,” Dr. Ross explained.

“Their limbs functioned differently than those of horseshoe crabs. Olenoides serratus could walk, dig, bring food to their mouths, and even elevate their bodies above the seafloor.”

To realize these findings, the scientists constructed advanced 3D digital models based on hundreds of fossil images captured from various angles.

Since trilobite limbs are often crushed and flattened, reconstructing them in three dimensions presents a significant challenge.

“We depend on exceptionally well-preserved specimens, comparing limb structures from multiple angles while leveraging related fossils to fill in any missing details,” said Professor Javier Ortega-Hernandez of Harvard University.

The team correlated the morphology of trace fossils to the movements of the limbs.

“The different movements of Olenoides serratus could create trace fossils with varying depths,” Dr. Ross elaborated.

“They were capable of raising their bodies on deposits, allowing them to traverse obstacles and navigate efficiently through swift currents.”

Remarkably, the researchers found that males possessed specialized appendages for mating, and each leg featured gills for respiration.

The findings were published in the journal BMC Biology on August 4th, 2025.

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Loss et al., 2025. Quantification of leg mobility in Burgess Shale Olenoides serratus reveals the functional differences between trilobite and Xiphosuran appendages. BMC Biol 23, 238; doi:10.1186/s12915-025-02335-3

Source: www.sci.news

Archaeologists Reveal the Hidden Secrets of Pompeii’s Vibrant Legacy

When Mount Vesuvius erupted in 79 AD, it buried Pompeii under a meter of ash and pumice, effectively freezing the Roman city in time. However, a new study reveals that the story didn’t end there. Life persisted for centuries, emerging among the abandoned structures in significantly altered forms.

Recent findings from restoration efforts in the city’s southern quarter indicate that Pompeii was reoccupied shortly after the eruption and remained inhabited until at least the fifth century.

“Researchers and archaeologists have always been intrigued by the idea of people returning to Pompeii, but this was often overshadowed by a focus on the remarkably preserved artwork from before 79 AD,” said Gabriel Zuchtliegel, director of Pompeii Archaeological Park and lead author of the new study, in an interview with BBC Science Focus.

However, the resettlement was a shadow of Pompeii’s former self. “The reoccupation of Pompeii was not comparable to the city as it existed before AD 79,” Zuchtliegel stated.

“It resembled more of a slum—a highly unstable and unstructured settlement. As far as we know, there were no temples or public buildings.”

A collection of ceramic containers (amphorae), fragments, tiles, and marble repurposed by the inhabitants of this space after 79 AD – Credit: Archaeological Park in Pompeii

Families fashioned makeshift homes on the remaining upper floors of the buried buildings, while the lower levels (previously above ground) were transformed into hearths and caves, complete with ovens and small workshops.

But who chose to return to the devastated city? According to Zuchtliegel, these residents were likely those with limited options. “Certainly, they would have preferred to live elsewhere if possible, but some may not have had other resources.”

There was also an additional motivation: the opportunity to reclaim treasures buried beneath the ash. “A vast amount of wealth lay hidden underground, including metals, statues, coins, and marble,” Zuchtliegel noted.

“People may have initially returned to unearth the ruins of Pompeii… over time, vegetation would have reclaimed the land, creating a green and thriving landscape.”

This fragile community endured for centuries. Alongside the broader decline of the Western Roman Empire, it likely ceased to exist after another eruption in 472 AD. “There may have been general demographic declines, migration, and hardships related to the collapse of centralized governance,” Zuchtliegel explained.

“It’s astonishing to see how people endure and cope in such extreme circumstances.”

About our experts

Gabriel Zuchtliegel is the director of the Archaeological Parks in Pompeii. He studied Classical Archaeology at Humboldt University in Berlin and obtained his PhD from the University of Bonn.

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Source: www.sciencefocus.com

“Fresh Beginnings at 60: Sharing My Old Diary Online and Discovering My Youthful Secrets Went Viral”

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Etsy Lerner may not view herself as a TikTok star, but the New York Times labels her as one, even calling her an influencer. To her, it signifies payment and illicit goods — all she possesses is a free pen. “I genuinely do it for myself,” she states, “and for those who follow me.”

Lerner is 64 years young. She spent over two decades as a literary agent, representing authors like Patti Smith and Temple Grandin. A non-fiction writer, she is the author of her debut novels, “The Shred Sisters” and “Love Letter to Loneliness.” However, her TikTok presence is noteworthy, boasting 1.5 million followers! There, she shares videos reading from a diary chronicling her chaotic 20s.

“I don’t know who you love, who loves you, what you do for your job, what your purpose is,” she expresses in one post. “This morning I stumbled upon a line in my journal. In my 20s, I wrote: ‘I feel like I don’t know who I am.'”

Lerner shares posts while in a dressing gown and without makeup. Initially, she ventured into BookTok to support authors, but as her new novel was approaching release, she started filming herself on camera, despite not initially gaining followers. “A friend advised me to embrace it like my own TV channel… so I thought, ‘I’ll read from an old diary.'”

She has kept journals since the age of 11, inspired by Anne Frank’s “The Diary of a Young Girl.” “I penned my first poem there, trying to understand myself…” Although her journal from ages 12 to 18 was lost when her car was stolen, she has roughly 30 volumes from her 20s safely stored away in her attic.

“My journals are incredibly melancholic. They discuss loneliness, the search for love and friendship, and the quest for identity,” she reflects.

Lerner describes herself as a “slow bloomer.” Accepted into Columbia’s MFA Poetry Program at 26, she entered the publishing world in her late 20s, a time when most editorial assistants were fresh college graduates. “I didn’t experience love until I was 30 and lacked any significant relationships… I lost much of my teens and endured depression through most of my 20s.”




“It’s all about connecting and trying to communicate,” … Betsy Lerner captured in New Haven, Connecticut.
Photo: Nicole Frapie/Guardian

At 15, her parents took her to a psychiatrist, which led to a diagnosis of bipolar disorder. “I resisted accepting that I had this condition. I fought against it for a long time,” she admits. Her 2003 memoir, Food and Loathing, recounts her relationship with weight, food, and depression, detailing one instance in her late 20s when she found herself standing on a bridge over the Hudson River.

A breakthrough occurred at 30 when she connected with a psychopharmacologist who could prescribe the right dosage of lithium (they have collaborated for 35 years). She also got married.

Writing in her journal became less frequent. While she initially wrote at night in bed, “I wasn’t feeling so sad and lonely anymore,” she reflects.

Over the years, Lerner says, “I was instinctively drawn to strength.” Currently, she prioritizes stability above all else.

She had no intentions of writing a novel. Nevertheless, in 2019, she faced “the tragic loss of four” individuals: her mother, two teenagers, Ruby and Hart Campbell, who were tragically killed by a drunk driver, and her best friend, author George Hodgman, who died by suicide. “I still grapple with the idea of grieving everyone, all the time,” she shares.

Following these losses, she began writing “Shred Sisters.” The novel serves as a means for her and her two sisters to care for one another while navigating their grief. She has also written another novel and continues to share insights from her diary as long as inspiration strikes. “It’s all about connecting and communicating,” she affirms.

“There’s a constant flow of comments from young adults in their 20s who resonate with my struggles. That connection motivates me immensely. I feel aligned with these young individuals.”


Shred Sisters is published by Verve Books. To support the Guardian, please order a copy from the Guardian Bookshop. Shipping fees may apply.


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Source: www.theguardian.com

Genetics Unveils the Secrets Behind Potato Origins

Potato tubers are a product of ancient hybridization events

Jackie Bale/Getty Images

The common potato has been discovered to originate from a cross between the ancient tomato and a lesser-known South American lineage called Etuverosam.

Plants from the Etuverosam group resemble potato plants but lack one significant feature: they do not yield the starch-rich tubers that make cultivated potatoes a vital food source globally.

Sandra Knapp from The Natural History Museum in London and her team examined the genetics of three groups within the Solanum genus: Petota, which includes 107 species of cultivated potatoes, alongside 17 tomato types and three Etuverosam species. All three groups are believed to have diverged from a shared ancestor roughly 14 million years ago.

The researchers analyzed 450 genomes from cultivated potatoes and 56 wild potato species, revealing a consistent genetic mixture of tomato and Etuverosam genes across all samples.

Findings suggest that the origins of potato strains result from hybridization events with tomato ancestors, likely from a lineage situated in present-day Chile, dating back about 8 million years.

These hybridization events have led to novel gene combinations and innovations like tuber formation. “This process facilitates gene sharing, enabling new strains to produce tubers and helping these plants to thrive in newly formed, cold and arid environments,” Knapp explains.

This indicates that hybridization acts as “a significant driver of diversity evolution,” according to Knapp.

“While the edible parts of tomatoes and potatoes appear quite different, the actual plants are remarkably similar,” she elaborates. “If you happen to find a potato plant that produces fruit, it will yield green, tomato-like berries, but these are inedible and taste unpleasant.”

Brett Summerrell from a Botanical Garden in Sydney, Australia, which did not participate in the study, mentions that this new research offers substantial evidence of hybridization and resultant species diversification.

“This study underscores the necessity of understanding the evolutionary importance of crops and safeguarding their wild relatives, which may be crucial for addressing future agricultural challenges,” Summerrell emphasizes.

“Many relatives of potato-like species face threats posed by habitat destruction and climate change.”

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Source: www.newscientist.com

Patient Rover Could Uncover Secrets of Newly Discovered Mars Volcano

The questionable volcano (highlighted) is located near the prominent Jezero crater on Mars

NASA/JPL/MSSS/JHUAPL/ESA/DLR/FU BERLIN/ASTER COWART

Recent observations suggest the existence of a volcanic formation at the edge of Mars’ Jezero Crater, currently under investigation by NASA’s rover. This rover might already be collecting samples from materials expelled during an ancient volcanic eruption.

Perseverance, which landed in Jezero Crater in 2021, is methodically moving toward the western edge, tracing an ancient river that is believed to have flowed between 300 million and 4 billion years ago.

The rover is gathering samples meant to be returned to Earth as part of the Mars Sample Return mission planned for the 2030s. However, this endeavor faces potential cuts proposed by the Trump administration affecting NASA’s funding.

Some of the materials in the samples were thought to be volcanic, showcasing characteristics of lava flow. Recently, James Ray from Georgia Tech in Atlanta and his team have identified a possible volcanic structure at Jezero Mons—a dormant volcano situated on the southeastern edge of Jezero.

High-resolution images from Martian orbiters have revealed fine-grained materials in the vicinity, possibly indicating ash from the volcano. The dimensions and shape of Jezero Mons—21 km wide and 2 km high—parallel those of similar volcanoes on Earth.

“The evidence for igneous volcanoes is most consistent with our observations,” states Ray, noting that magma may have originated from beneath the surface. “This is the strongest case we can make without physically visiting the site.”

By analyzing the craters near the volcano, Ray and his colleagues estimate that Jezero Mons may have last erupted around a billion years ago.

This finding suggests that the rover might have collected volcanic samples. If they can be returned to Earth, scientists would be able to accurately date volcanic activity on another planet for the first time.

“Knowing when that volcano was active is incredibly exciting,” exclaimed Briony Hogan from Purdue University in Indiana, a member of the rover’s science team. This information could significantly enhance our understanding of “how the interiors of planets evolve over time,” she adds.

Ideally, Ray mentions that he hopes to direct Perseverance to the volcano itself, but acknowledges this may not be feasible. “There are really fascinating ancient rocks to the west of the crater, so they’re likely driving in the opposite direction,” he explains. “I can’t blame them.”

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Source: www.newscientist.com

Unraveling the Secrets of Lightning: A Possible Resolution Awaits

In the early days of scientific exploration, researchers observed natural phenomena and began to unravel the mysteries behind how lightning forms.

These brief yet incredibly bright bursts of radiation, referred to as Terrestrial Gamma Ray Flashes (TGF), were identified by a research team at Osaka University in Japan during a lightning event.

Interestingly, TGFs are typically observed in space, associated with supernovae and black hole jets. This raises the question: how does lightning produce the energy required to generate them?

Recent papers published in the journal Advances in Science potentially provide answers. While scientists previously believed that TGFs were caused by the rapid acceleration of electrons, testing this theory has proven challenging. The radiation often occurs in the final microsecond and is concealed by cloud cover.

This is why researchers involved in the new study employed innovative techniques to observe thunderstorms, utilizing a multi-sensor system that includes optical, radio frequency, and high-energy radiation sensors.

“The multi-sensor observations conducted here are unprecedented,” stated Dr. Harufumi Tsuchiya, the senior author of the paper. “While some mysteries persist, this approach has significantly deepened our understanding of these intriguing radiation burst mechanisms.”

So, what did they find? Collectively, the sensors unveiled two channels of charged particles known as the discharge pathway—one descending from the thundercloud to the TV tower, and the other ascending from the tower.

The scientists observed the formation of TGFs occurring 31 microseconds before the two pathways converged, resulting in a highly concentrated electric field where electrons accelerated at nearly the speed of light.

Once the two pathways merged, the burst continued for an additional 20 microseconds, yielding a lightning strike of -56 kiloamperes. (Don’t let the negative sign confuse you—it merely indicates the direction from cloud to ground. This current is exceptionally high, typical of lightning.)

Wada Yutaka, the lead author of the study, remarked, “The opportunity to examine extreme processes such as TGFs stemming from lightning enhances our understanding of the high-energy dynamics present in Earth’s atmosphere.”

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Source: www.sciencefocus.com

Avoiding Taxes in Ancient Rome: Secrets Revealed in 1,900-Year-Old Papyrus Scrolls

In what wasn’t exactly the tax evasion trial of the century – given that it took place in the second century – the charges faced by the defendants were so weighty that they included forgery, financial fraud, and fraudulent slave sales. While tax evasion is an age-old practice, these particular crimes were deemed extremely serious under Roman law, with penalties ranging from hefty fines and lifelong exile to grueling labor and, in the most severe cases, being devoured by wild animals in a practice known as damnatio ad bestias.

The details of the allegations were recorded on papyrus, which was discovered decades ago in the Judean Desert and recently subjected to analysis. The documentation includes preliminary notes for the prosecutor and hastily drafted minutes from the judicial hearings. According to the ancient records, the tax evasion schemes involved document tampering, illicit slave sales, and manumission.

The accused in both tax cases were men. One of them, Gadalius, was the son of a poor notary who had ties to the local administrative elite. In addition to convictions for extortion and forgery, his extensive list of transgressions included banditry, incitement, and four appearances in court for tax evasion before the Roman governor. Gadalius’s partner in crime was a certain Saurus, identified as his “friends and collaborators,” and the mastermind Caper. While the ethnicity of the accused is not explicitly mentioned, their Jewish background is inferred from their biblical names Gedaliah and Saul.

This ancient legal saga unfolded during the reign of Hadrian, around the year 130 AD or possibly before 132 AD when Simon Bar Kochiba, the leader of the Messianic rebels, launched a large-scale uprising, marking the third and final conflict between the Jewish people and the Empire. The rebellion was brutally suppressed, resulting in hundreds of thousands of casualties, mass expulsions of Jewish communities, and the renaming of Syria and Palestine by Hadrian.

Anna Dolganov, a historian of the Roman Empire at the Austrian Archaeological Institute who deciphered the scroll, remarked, “The papyrus sheds light on the Roman authorities’ suspicion of their Jewish subjects.” She pointed out that there is archaeological evidence of a coordinated effort during the Bar Kochiba rebellion. “It is plausible that individuals like Gadalia and Saurus, who sought to subvert Roman rule through tax evasion, were involved in the uprising’s planning,” Dr. Dolganov suggested.

In the latest edition of Tyche, an ancient journal published by the University of Vienna, Dr. Dolganov and three colleagues from Austria and Israel present court proceedings as case studies. Their research unveils how Roman institutions and imperial law influenced the administration of justice in an environment with relatively few Roman citizens.

“This document provides intriguing and valuable insights into the slave trade in this region of the empire,” noted Dennis P. Kehoe, a classicist at Tulane University not involved in the study. “The allegations may involve the Jews owning slaves.”

The exact date and location of the papyrus’s discovery remain uncertain, but Dr. Dolganov suggested it was found by an ancient Bedouin dealer in the 1950s. She suspected Nahal Haver, a steep canyon west of the Dead Sea where Bar Kochiba rebels sought refuge in a cave hid along the natural fault line of a limestone cliff. In 1960, archaeologists unearthed documents from the era in one of the Jewish hideouts, with more discoveries made since then.

A 133-line irregular scroll, initially misclassified, went unnoticed in the Israeli Antiquities Authority archives until 2014 when Hannah Cotton Parietl, a classicist at the Hebrew University of Jerusalem, identified it as being written in ancient Greek. Given the complexity and exceptional length of the document, a team of scholars was assembled to conduct detailed physical examinations and cross-referencing with historical sources.

Deciphering the papyrus and piecing together its intricate narrative posed a significant challenge for Dr. Dolganov. “The text features small, densely packed letters and highly rhetorical Greek replete with technical legal terminology,” she remarked. Unlike more straightforward documents such as contracts, there were no standardized templates for translation ease. “The fact that we only have the latter half of the original text further complicates matters,” Dr. Dolganov added.

Researchers speculated that the tax evasion scheme aimed to circumvent official scrutiny. This necessitated meticulous detective work to decipher the sequence of events. “I had to adopt the Roman fiscal authorities’ perspective to grasp the text’s nuances,” Dr. Dolganov explained. She also had to step into the accused’s shoes to understand the rationale behind tax fraud in the remote fringes of the Roman world.

The ancient stratagems resonate with contemporary tax experts. A German legal expert relayed to Dr. Dolganov that the subterfuges of Gadalius and Saurus mirrored present-day practices of tax evasion, such as asset shifting and fictitious transactions. The Roman interrogation methods aligned closely with modern-day investigative custody for financial crimes, marked by intimidation and frequently rigorous questioning.

A Princeton University classicist unaffiliated with the project, Brent Shaw, remarked:

The cases against Gadalius and Saurus were bolstered by intelligence provided by informants who betrayed them to the Roman authorities. Interestingly, the text implies that the informer might have been none other than Saurus himself, who implicated his partners to shield himself from an imminent financial scrutiny. The most plausible scenario posits that Saurus, a Jewish resident, orchestrated the pseudo-sale of several slaves to Chareas, a neighbor residing in the adjacent Arabian province, as per Dr. Dolganov’s interpretation.

By selling slaves across provincial borders, Saurus sought to obfuscate assets from scrutiny. While physically present in Saurus’s custody, the slaves, undocumented in Arabia, evaded declaration by Chareas. “Effectively, the slaves vanished on paper from Judea and never materialized in Arabia, eluding Roman oversight,” Dr. Dolganov noted. “This ensured that no further taxes were levied on these slaves.”

The Empire implemented a sophisticated system for monitoring slave ownership and collecting various levies, including a 4% tax on slave sales and a 5% duty on estates. “To emancipate empire-owned slaves, detailed documentary evidence of current and prior ownership was mandatory,” Dr. Dolganov elucidated. “Any missing or dubious documents would trigger an inquiry by Roman administrators.”

In an attempt to conceal Saurus’s double-dealings, Gadalius, the son of a notary, allegedly fabricated bills of sale and other legal documents. When authorities detected irregularities, the defendant purportedly bribed the local municipal council for protection. During the trial, Gadalius shifted blame onto his deceased father for the forgeries, while Saurus implicated Chaireas in the document tampering. The papyrus does not provide insights into their motives. “The rationale behind men risking forgery to liberate slaves without legitimate documentation remains a mystery,” Dr. Dolganov mused.

One conjecture posits that by orchestrating fake slave sales followed by manumission, Gadalis and Saurus may have been adhering to a Jewish religious mandate to free those enslaved. Alternatively, there might have been a profit incentive in capturing individuals across borders, potentially entrenching them as free Romans after freeing them from “enslavement.” Or Gadalia and Saurus might have engaged in human trafficking, a possibility that is as speculative as it is fraught with implications, Dr. Dolganov emphasized.

One aspect of the trial that struck Dr. Dolganov was the prosecutor’s professionalism. Employing sophisticated rhetorical strategies reminiscent of Cicero and Quintilian, the prosecutor exhibited a mastery of Roman legal terminology and concepts in Greek. “Here, on the edge of the Roman Empire, we witness a highly skilled legal practitioner steeped in Roman law,” Dr. Dolganov remarked.

The papyrus does not reveal the final verdict. “If a Roman judge deemed these men as incorrigible criminals deserving execution, Gadalius, as a member of the local elite, might have met a more merciful end through decapitation,” Dr. Dolganov suggested. “In any case, it beats being torn apart by a leopard.”

Source: www.nytimes.com

Surprising Furry Secrets Hidden within Mystical Medieval Book Covers

Medieval scribes fill a volume called veterinarians with illustrations and descriptions of fantastic creatures. Manuscripts containing representations of these animals also relied on the beast zoo. These and other volume covers were made from calf, goat, sheep, deer and pig skins.

Most of these skins were removed before they were converted to book bindings. However, the medieval manuscript sets in northeastern France have a distinctive finish. The weathered cover is covered with hair.

Matthew Collins, a biofactorologist at the University of Copenhagen and Cambridge and author of the new study, said: However, it turns out to be difficult to pinpoint the source of hairy leather.

These furry books appear to be at home at the Hogwarts Library, but were originally written by Clairvaux Abbey, a hub of the Cistercians, the orders of the Catholic monk Ks. Founded in the Champagne Adennes region of France in 1115, the monastery was located in one of the largest monastery libraries in medieval Europe.

Approximately 1,450 volumes of the monastery’s extensive corpus survive. Approximately half of these manuscripts remain in the original, fragile bindings. Many were tied in Romanesque style in the 12th and 13th centuries, parchment was placed between wooden boards fixed with thread and cord.

At Clairvaux Abbey, these Romanesque books were often housed in secondary covers, bristled with fur. Traditionally, this creepy leather was thought to be made from wild boars and deer. However, the hair follicles of some manuscripts do not match the fur of either mammal.

Dr. Collins and his colleagues examined the hairy covers of 16 manuscripts once housed at Clairebaud Abbey. Researchers rubbed the sides of the leather meat with an eraser and carefully removed the crumb-sized sample. We then used various techniques to analyze the protein sequences and bits of the ancient DNA of leather.

Their findings published in the journal on Wednesday Royal Society Open Sciencereveals that the book is tied to seal skins, not to local land mammal skins. Some books are tied up in the skin of harbor seals, and at least one came from harp seals. Comparing them to modern DNA suggests that the origins of Scandinavian and Scottish seals, or as far as Iceland and Greenland.

These different territories were once connected by complex medieval trading networks. During the Middle Ages, Scandinavian traders harvested walrus ivory and fur from Greenland and sent them to mainland Europe. Clairebaud and his monks were far more inland from these coastal front posts, but the monastery was near a trafficked trade route.

The discoveries shed light on medieval society, according to Mary Wellesley, a fellow at the London Institute of Historical Studies, who specializes in medieval manuscripts and was not involved in new papers.

“The small details of the manuscript can tell you a lot about the world that created them,” Dr. Wellesley said. “It’s a common assumption that people didn’t move around, but these monasteries are part of this incredible network of goods, books and ideas.”

Seals were a valuable product for meat, dull, waterproof skin. This could be made into boots or gloves. Some records even claim that Sealskin was used to pay church taxes. Coastal communities in Scandinavian and Ireland used Sealskin to bind books, but this practice was far more unusual in the mainland Europe.

However, Cistercian monks apparently liked Sealskin’s books. Examples of these furry manuscripts have been found in other Abbeys, descendants of Clairevaux. These monks used this material to combine the most important documents, including historical information about the Cistercians, historical information about St. Bernard.

According to Dr. Collins, the fur color of the seal may explain the preference of the monks for using animal skins. The cover of the manuscript is now yellowish-gray or spotted brown, but was once wrapped in the white fur of a seal puppy. This shade matched the best of the monks’ dissatisfaction.

“In medieval Europe, you really don’t have anything white or white,” said Dr. Collins. “It must have been very magical.”

The seal itself appears to resemble the magical entity of the monk ks. In medieval veterinarians, seals are labelled “sea calves,” resembling dogs that have raised fish tails.

Source: www.nytimes.com

TikTok’s Money-Making Secrets: How Kids’ Live Streams Generate Revenue

Three young children huddle in front of the camera, nibbling and fidgeting. “Support us. We are extremely poor,” the boy says, gazing into the lens.

They appear to be in a mud brick hut in Afghanistan, experiencing severe poverty. Despite this, their live broadcasts have reached audiences in the UK and worldwide through Tiktok Live.

They spend hours soliciting virtual “gifts” that can later be exchanged for money. When they receive a gift, they politely applaud. In one live stream, a girl jumps up and exclaims, “Thank you, we love you!” After receiving a digital rose from a woman in the US, which costs approximately 1p on Tiktok, when converted to cash, it’s worth less than a third of a penny.

Tiktok claims to prohibit child begging and other forms of exploitation, deeming it exploitative, and states that there is a strict policy for users participating in live shows.

However, research by Observer has revealed widespread practices of begging on live streams, actively promoted by algorithms and benefiting Tiktok, which takes up to 70% of fees and charges.

Olivier de Schutter, the United Nations Special Rapporteur on Extreme Poverty and Human Rights, has criticized this trend as “a shocking development,” accusing Tiktok and its intermediaries of profiting from people’s misery. He urges Tiktok to take immediate action, implement stringent policies against exploitative begging, and scrutinize the individuals profiting from the world’s most vulnerable.

“We have put a lot of effort into saving you,” said Jeffrey Demarco, a Digital Rights expert at Save the Children. “Documented practices reveal serious abuses that require immediate action to ensure the platform no longer allows or benefits from such content.”

An analysis conducted between January and April 2025 found evidence of live begging and related behaviors in countries like Indonesia, Pakistan, Afghanistan, Syria, Egypt, and Kenya.

Many live streams show families begging in domestic settings, while some streams seem to involve organized begging activities.

Source: www.theguardian.com

Apple’s UK Legal Challenge on Cryptography: Secrets Unveiled in Closed Room

The legal battle between the US tech company and the UK government over access to customer data saw a closed-door hearing on Friday after the press was unable to enter the courtroom for the lawsuit.

Apple has appealed to the Investigation Power Court after the Home Office requested access to encrypted data stored on Apple’s cloud servers.

British media outlets such as The Guardian, The BBC, The Financial Times, and Computer Weekly tried to gain access to the court for public interest reasons but were denied entry.

The government’s representative in the case, Sir James Eady KC, was seen entering the court on Friday.

Apple is contesting technical capacity notices issued under the Investigation Powers Act, which require assistance from businesses in providing evidence to law enforcement. The notice requested access to Apple’s Advanced Data Protection (ADP) service, which encrypts personal data stored remotely on a server.

Apple refused to comply with the order and challenged it in court, raising concerns about the legality of the national intelligence agency’s actions. Apple also pulled ADP from the UK, stating they have never created backdoor keys or master keys for their products or services.

ADP employs end-to-end encryption, ensuring that only the account owner can decrypt the data. Messaging services like iMessage and FaceTime are also end-to-end encrypted by default.

The government’s legal demands, known as Technical Capacity Notices, prohibit recipients from disclosing the order unless authorized by the Secretary of the Interior. Court hearings are supposed to be closed to the public only if strictly necessary to protect national security.

A bipartisan group of US lawmakers called for transparency regarding the UK government’s orders and urged further hearings and proceedings to shed light on the issue.

Reports suggest that British officials have started discussions with US counterparts to ensure that they are not seeking blanket access to US data, only information related to serious crimes like terrorism and child sexual abuse.

The Home Office has been contacted for comment.

Source: www.theguardian.com

UAV Technology Reveals Hidden Secrets of Ancient Mega-Fortress in Southern Georgia

High-resolution UAV-based aerial survey of the massive Bronze Age fortress Domanissis Gora in Georgia, South Caucasus, reveals the extent of a large external fortification system and settlements that are largely undocumented in the region. The exceptional size of D. gora helps add a new dimension to population assembly models in Eurasia and other regions.



Aerial photo of the Domanisis Gora ruins. It shows where two canyons meet. Excavation work on the inner fortress in 2023 is visible in the foreground. Image credit: Nathaniel Erb-Satullo.

Fortified settlements in the South Caucasus appeared between 1500 and 500 BC and represent an unprecedented development in the region’s prehistory.

Located on the border between Europe, the Eurasian steppe and the Middle East, the Caucasus region has a long history as a crossroads of cultures with a unique regional identity.

In a new study, archaeologists focused on Domanisis Gora, a 60-80 hectare fortified settlement in Georgia that is exceptional in its preservation and size.

Dr. Nathaniel Erb Satullo of the Cranfield Institute of Forensic Sciences at Cranfield University and his colleagues wrote: “The fortifications of Domanisis Gora consisted of a double-walled fortified core and a much larger outer shell with additional fortifications. “There is,” he said.

“Two steep-sided gorges, 60 meters deep in places, supplement the defensive walls.”

“Previous research had noted that the site had an unusually large walled enclosure, but the site had not been systematically mapped.”

The researchers used the DJI Phantom 4 RTK drone, which can provide less than 2 cm relative position accuracy and very high-resolution aerial imagery.

To obtain high-precision maps containing man-made features, each feature in the aerial images was carefully checked to confirm its identity.

To understand how the landscape at the site has evolved, the orthophotos were compared to 50-year-old photos taken by a Cold War-era reconnaissance satellite that was declassified in 2013.

This gave scientists much-needed insight into which features are recent and which are old.

The team was also able to assess which areas of the ancient settlement were damaged by modern agriculture.

All of these data sets were integrated into geographic information system (GIS) software to help identify patterns and changes in the landscape.

“The drone takes approximately 11,000 photos and uses advanced software to combine these photos with a high-resolution digital elevation model and orthophotos, which show every point as if looking directly down. We created a composite photo,” said Dr. Elvusaturo.

The researchers found that the Domanisis Gora ruins were more than 40 times larger than originally thought, and included a large outer settlement protected by a kilometer-long wall.

“Using a drone, we were able to understand the importance of the site and document it in a way that would not be possible on the ground,” said Dr. Herv Saturo.

“Domanisis Gora is not only an important discovery for the South Caucasus region, but also has broader significance for the diversity of large-scale settlement structures and their formation processes.”

“We hypothesize that Domanicis gora may have expanded through interaction with mobile pastoral groups, with large settlements outside it expanding and contracting seasonally.”

“The site has now been extensively mapped and further research will be initiated to gain insight into areas such as population density and density, livestock movements and agricultural practices.”

The team’s paper was published in a magazine ancient.

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Nathaniel L. Erb-Saturo others. Megaforts of the South Caucasus: New data from southern Georgia. ancientpublished online on January 8, 2025. doi: 10.15184/aqy.2024.197

Source: www.sci.news

UFOs: Uncovering the Secrets the US Government is Keeping

On November 13, 2024, four witnesses appeared before the Joint Subcommittee. US Congressional Oversight and Accountability for a testimony session on so-called “Unidentified Anomalous Phenomena (UAP).” This is a necessary rebranding of the term “UFO.” The people who spouted these three letters in the past were rarely seen as trustworthy or worthy of testifying before the U.S. government.

The four witnesses were Rear Adm. Tim Gallaudet, former commander of the U.S. Navy’s Meteorological and Marine Command; Luis Elizondo, former director of the Defense Department’s Advanced Aerospace Threat Identification Program; investigative journalist Michael Shellenberger; Former NASA Deputy Administrator Michael Gold.

4 people submitted written testimony before the hearing. Shellenberger also allegedly original document An anonymous whistleblower report regarding a program called “Immaculate Constellation,” an “unauthorized special access program” for top-level monitoring of UAP-related activities.

https://c02.purpledshub.com/uploads/sites/41/2024/12/UFOs-above-athens-1.mp4
This footage taken in June 2023 claims to show a line of UFOs in the sky.

The document referred to an extensive database of high-quality evidence collected over several decades, all of which had previously evaded democratic oversight by Congress and most executive branches.

Ann early hearing Held on July 26, 2023, former U.S. Navy pilots testified about events such as encounters with the famous “tic-tock object” and 2004 FLIR (forward-looking infrared) video from the USS. Nimitz Encounters, and GoFast and gimbal videos from the 2015 USS roosevelt Incident.

Previous reports of UAP/UFO sightings date back to the 1940s, and some even centuries earlier. There also seemed to be waves of UFO sightings.

Suspicions of a government cover-up have been floating since the Roswell incident in 1947, but the latest surge in interest in government secrets was sparked in 2017. new york times article About the Department of Defense’s alleged UAP program.

This has led to a bipartisan interest in Congress to uncover the extent to which the U.S. government and intelligence community covered up the sightings. They promised to provide transparency to the American people.

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So far, it’s safe to say that attempts at transparency have been a total failure. Witnesses have refused to disclose classified material that could violate confidentiality oaths, and the government’s refusal to declassify the material (or even acknowledge its existence) has created obstacles. This had an impact on the full-scale discussion on UAP disclosure.

The hearing on November 13, 2024 was no exception. Chairman Nancy Mace began the cover-up game by saying she had no intention of “revealing names.” She also said there were people trying to influence her not to hold this hearing.

Nancy Mace speaks at a House Oversight and Accountability Committee hearing in Washington, D.C. – Photo courtesy of Getty

All witnesses except Gold are not allowed or unwilling to discuss certain questions in public session, or are not allowed or unwilling to discuss them completely. (Shellenberger claimed it was to protect his journalistic sources). They also reported being subject to threats or outright intimidation not to disclose confidential material.

close encounter

If Mr. Gold had confidential information, he never disclosed it. He simply, and rightly, emphasized the need for independent scientific and academically rigorous investigation of the phenomenon.

However, that did not stop witnesses from claiming knowledge of the crash recovery program and encounters with underwater UAPs and USOs (Unidentified Submersible Objects). They also implied that staff were being treated for injuries sustained from contact with the UAP, and that humanity was already dealing with non-human intelligence (NHI).

Information that, if true, would fundamentally change our view of our place in the universe. This also shows that there is still a lot of sensitive material hidden away.

Witnesses are allowed to speak to some extent about facts that are usually considered “official secrets,” but are prohibited from releasing confidential material that supports their claims. This means you can never really know if what they say is true.

Two senior members of the Eighth U.S. Air Force have identified metal fragments found by a farmer near Roswell, New Mexico as debris from a weather balloon. This is the basis for the 1947 Roswell Incident, which was the alleged crash of an alien spacecraft.

Their testimony is always subject to ample doubt. They may all be sincere in their beliefs or have access to relevant evidence, but it is this personal editing that inevitably leads the witness to failure and, at worst, ridicule. It will be done.

But in many previous hearings, they have only presented what they were told, or in legal parlance, “hearsay evidence”, a type of evidence that legal systems around the world consider to be questionable. I haven’t.

This makes it easy for so-called “falsifiers” to point out that evidence is always announced to be released soon, but is never actually released.

And unfortunately, not all of the witnesses who appeared before Congress on November 13th have impeccable reputations for due diligence and fact-checking information.

For example, Elizondo was recently exposed during a lecture. Presenting a photo said to have been taken in Romania in 2022 Obtained from government contact. He claimed it belonged to a giant “mother ship”, but it turned out to be a fake.

His response was to congratulate those who realized his mistake and to say that he is always happy to see false evidence removed from a serious UAP story.

This “non-human” alien corpse was presented to Mexican politicians in 2023. Experts around the world have labeled the corpse a hoax. – Photo credit: Getty

Regardless, former U.S. officials should reconsider their blind allegiance to secrecy and consider whether there is really any benefit to complying with the government’s demands for silence. Their current reluctance to disclose information only further fuels the US government’s quest to obfuscate the democratic process.

If the witnesses’ claims are true, this knowledge should be shared with the world, not held by one country’s government.

battle of words

The question of whether we are alone in space or even here on Earth is not, by definition, a national security issue. This myopic view, currently held by domestic intelligence agencies, is not appropriate for future policy principles.

It is inevitable that at some point someone will have to make the drastic decision to release or publish confidential material to which they have access, and have to impose their name and risk the consequences.

In fact, the threat of legal consequences not only lends greater credibility to the whistleblower’s character, but also increases the credibility of their testimony. Why risk making confidential documents public unless you are 100% sure they are true?

Even if the truth becomes public, it is unlikely to have any real impact. Steals Jack Ryan’s line, “If a bomb goes off, there’s no use trying to defuse it.” A clear and present danger.

Until then, the meaningless show of unchecked hearsay testimony will continue to be repeated on the floor of Congress. It is better to ignore the protests of witnesses that no real information can be revealed and to actively prevent the spread of unverifiable claims than to remain in a perpetual state of limbo of alien gossip and innuendo. Probably.

Keeping their mouths shut will ultimately do great damage to the truth behind UAP.

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For more fact-checked news, visit the BBC. confirm website of bit.ly/BBCVerify

Source: www.sciencefocus.com

Could fossilized excrement unlock the secrets of dinosaur dominance on Earth?

We now know that dinosaurs were giant reptiles that dominated the Earth, but scientists have long wondered why it took them 30 million years to reach their peak. New research on their fossilized poop and vomit may have found the answer suggests that there was food in their waste.

Carnivorous dinosaurs like tyrannosaurus may have their herbivore ancestors to thank for their enormous size. The researchers propose that if these plant-eating animals hadn’t ingested so many plants, dinosaurs might not have evolved into the giant creatures we know today.

The fossilized poop and vomit, known as bromalite or copralite, dates back to around 230 to 200 million years ago, a time long before the reign of the tyrannosaurus and the Chicxulub asteroid impact that led to the extinction of dinosaurs.

Scientists reconstructed a “food web” from the undigested meals of early dinosaurs, revealing the intricate relationships between different species during the Triassic period. By scanning over 500 fossils, they found evidence of various organisms, including beetles, bones, and partially digested fish.

Combining this information with climate data and other fossils provided insights into the diverse flora and fauna coexisting with dinosaurs on Earth.

“Sometimes seemingly ordinary fossils contain remarkable information that cannot be found anywhere else,” said Dr. Martin Kvarnström, a study co-author from Uppsala University in Sweden, as reported by BBC Science Focus.

Dr. Grzegorz Niedzwicki, another co-author from Uppsala University, added, “Understanding the diet of early dinosaurs may help us grasp why this group thrived. The evolution of life on Earth hinges on predator-prey dynamics and feeding habits.”

A study published in Nature analyzed digestive samples from south-central Poland during the Late Triassic period when the region was part of the Pangea supercontinent.

According to experts, increased volcanic activity and humidity favored the growth of moisture-loving plants during this time, potentially influencing the evolution of dinosaurs.

The study utilized advanced scanning techniques to reveal detailed information from the fossils, highlighting changes in vertebrate populations leading up to the dominance of dinosaurs.

The researchers aim to apply this model to study ancient species in other regions and emphasize the importance of fossilized waste in reconstructing ancient food webs.

“Everyone is focused on finding fossilized skeletons, but it’s the waste that offers valuable insights into events from millions of years ago,” remarked Niedzwicki.

About our experts:

Dr. Martin Kvarnström is a researcher at Uppsala University in Sweden, focusing on using fossils to understand reptile diets, including dinosaurs.

Dr. Grzegorz Niedzwicki, also from Uppsala University, specializes in the early evolution of dinosaurs and other quadrupeds.

Read more

Source: www.sciencefocus.com

Robot Pigeon Uncovers the Secrets of Bird Flight without Vertical Caudal Fins

A pigeon-inspired robot has uncovered the mystery of bird flight without vertical tails found in human-designed aircraft. The prototype has the potential to lead to passenger planes that can reduce drag and fuel consumption.

The vertical stabilizer, or tail fin, in aircraft allows for side-to-side turns and prevents unintentional changes in direction. Some military aircraft, like the Northrop B-2 Spirit, are designed without tails to reduce radar visibility. Instead, they use inefficient methods like flaps creating extra resistance on one side.

Research by David Lentink at the University of Groningen in the Netherlands led to the development of the PigeonBot II to study how birds maintain control without vertical stabilizers.

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PigeonBot II, a robot designed to imitate bird flight techniques

Eric Chan

The previous model, built in 2020, mimicked bird flight by flapping wings but had a traditional tail. The new design, featuring 52 real pigeon feathers, incorporates a bird-like tail, and successful test flights confirm its functionality.

Lentink explains that PigeonBot II’s success lies in its programmed, reflexive tail movements resembling those of birds. The intricate tail movements contribute to stability, proven by the robotic replica’s flight.

The team controlled PigeonBot II’s nine servo motors, utilizing propellers on each wing for steering and tail adjustments in response to the autopilot’s commands. Lentink notes that the complexity of these reflex movements prevents direct human control of PigeonBot II.

After numerous unsuccessful tests, the control system was refined, enabling safe takeoff, cruising, and landing. Lentink envisions a future where vertical stabilizers are unnecessary, reducing weight and drag in aircraft designs.

Source: www.newscientist.com

Newly discovered species reveals secrets of tardigrade radiation resistance

Newly discovered tardigrade species using genome, transcriptome and proteome analysis Hypsibius henanensis scientists investigated the molecular basis that contributes to radioresistance in these small invertebrates.

Schematic diagram of the mechanism conferring radiation resistance Hypsibius henanensis. Image credit: Li others., doi: 10.1126/science.adl0799.

Tardigrades, also known as tardigrades or moss piglets, are a diverse group of microscopic invertebrates famous for their ability to withstand extreme conditions.

First discovered in 1773, these organisms can live for up to 60 years, grow up to 0.5 mm in size, and are best seen under a microscope.

They can survive in temperatures as low as -272 degrees Celsius (-457 degrees Fahrenheit) or as hot as 150 degrees Celsius (302 degrees Fahrenheit), and temperatures as low as -20 degrees Celsius for several minutes, and for up to 30 years without food or water. Masu. Minus 4 degrees Celsius (minus 4 degrees Fahrenheit) continues for decades.

It can withstand pressures from virtually 0 atmospheres in outer space to 1,200 atmospheres at the bottom of the Mariana Trench.

They also exhibit excellent resistance to ionizing radiation, withstanding doses of gamma rays as high as 3,000 to 5,000 grays (Gy), approximately 1,000 times the lethal dose for humans.

The mechanism of radioresistance in tardigrades remains largely unknown.

Previous studies investigating how they do this have shown that tardigrades have powerful DNA repair abilities.

They also express tardigrade-specific proteins called damage suppressors (Dsup), when expressed in human cells, protects DNA from radiation damage.

In a new study, Lei Li and colleagues at Qingdao University describe a new species of tardigrade. Hypsibius henanensis.

Through detailed morphological and molecular analyses, they also investigated the basis of radioresistance in this species.

The researchers evaluated how exposure to heavy ion beams changes the molecular profiles of animals. They found that 285 stress-related genes were upregulated.

They further uncovered three molecular mechanisms that contribute to radioresistance in organisms.

First, the horizontally transferred bacterial gene DOPA dioxygenase 1 (Doda 1) enhanced radiation resistance by producing betalains (pigments with powerful free radical scavenging properties commonly found in plants, fungi, and bacteria).

Second, proteins unique to tardigrades, TDP1promotes DNA double-strand break repair.

Finally, mitochondrial chaperone genes BCS1Proliferated during the evolution of tardigrades, it is uniquely upregulated in response to radiation and protects cells from radiation-induced mitochondrial damage.

“The extreme environmental tolerance of extremophiles such as tardigrades provides a treasure trove of unexplored molecular mechanisms of stress tolerance,” the authors write.

“Functional studies of these radioresistance mechanisms may further expand our understanding of cell survival under extreme conditions and provide inspiration for promoting human health and fighting disease.”

of result Published in the Journal on October 25, 2024 science.

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Ray Lee others. 2024. The multi-omic landscape of tardigrades and the molecular basis of radioresistance. science 386 (6720);doi: 10.1126/science.adl0799

Source: www.sci.news