The newest artificial intelligence models demonstrate a comprehension of the world akin to human understanding. Yet, their sensory limitations hinder their grasp of concepts like flowers and humor.
Qihui Xu from Ohio State and her team explored the understanding of nearly 4,500 words by both humans and large-scale language models (LLMs), covering terms such as “flowers,” “hooves,” “humorous,” and “swings.” Both human participants and AI models evaluated these words based on emotional arousal and physical interactions associated with various body parts.
The objective was to analyze how LLMs, such as OpenAI’s GPT-3.5 and GPT-4, along with Google’s Palm and Gemini, compared with human rankings. While both humans and AI exhibited similar concept maps for words unrelated to sensory interaction, substantial discrepancies arose when it involved physical sensations and actions.
For instance, AI models often suggested that flowers could be perceived through the torso, a notion that most people find peculiar, as they typically enjoy flowers visually or through scent.
The challenge lies in the fact that LLMs develop their understanding from a vast array of text sourced from the internet, which falls short in tackling sensual concepts. “They are fundamentally different from humans,” she explains.
Certain AI models have undergone training using visual data like images and videos alongside text. Researchers have noticed that these models yield results more closely aligned with human evaluations, enhancing the chances that future AI will bridge sensory understanding with human cognition.
“This illustrates that the advantages of multimodal training might surpass expectations. In reality, it seems that one plus one can yield two or more,” states Xu. “In terms of AI advancement, this underscores the significance of developing multimodal models and the necessity of embodying these models.”
Philip Feldman at the University of Maryland in Baltimore County suggests that simulating an AI with a robotic body, exposed to sensorimotor experiences, could greatly enhance its capabilities, but he cautions about the inherent risks of physical harm to others.
Preventing such dangers requires implementing safeguards in robotic actions or opting for softer robots to avoid causing injury during training, warns Feldman, although this approach has its downsides.
“This may distort their perception of the world,” Feldman remarks. “One lesson they might learn is that they can gently bounce objects. [In a real robot with mass] The humanoid robots might believe they can collide with one another at full speed. That could lead to serious issues.”
A potential new dwarf planet has been identified at the distant fringes of our solar system, taking approximately 25,000 years to complete one orbit around the Sun.
This celestial object, designated 2017, was discovered by a team from the Advanced Research Institute and Princeton University who were searching for a “Planet 9,” a hypothesized planet larger than Earth that is believed to orbit beyond Neptune. Some astronomers suspect that this elusive Ninth planet could shed light on the peculiar clustering of various objects and other oddities observed in the outer solar system.
While in pursuit of the elusive Planet Nine, researchers instead came across another resident of our cosmic neighborhood.
“It’s similar to the way Pluto was discovered,” remarked Sihao Cheng, a member of the Advanced Research Institute that spearheaded the research team. “This endeavor was a real adventure.”
If validated, the newly found dwarf planet could be what Chen refers to as Pluton’s “extreme cousin.” The findings were published on the Preprint site arXiv and have yet to undergo peer review.
Cheng and his colleagues estimate that 2017 measures approximately 435 miles in diameter.
Dwarf planets are categorized as celestial bodies orbiting the Sun that possess enough mass and gravity to be nearly round, yet unlike typical planets, they do not clear their orbital paths of asteroids and other objects.
Eritayan, a co-author of the study and a graduate student at Princeton University, noted that one fascinating characteristic of 2017 is its highly elongated orbit. At its most distant points from the Sun, it lies over 1,600 times farther than Earth does from the Sun.
The potential dwarf planets were discovered through a meticulous examination of a vast dataset from a Chilean telescope that was scanning the universe for signs of dark energy. By compiling observations over time, the researchers identified moving objects exhibiting clear patterns.
While 2017 may be one of the most distant known objects in the solar system, its discovery suggests that other dwarf planets may exist in that vast region of space.
“We used public data that had been available for some time,” explained Jiaxuan Li, a graduate student and co-author of the research at Princeton University. “It was just hiding in plain sight.”
Li mentioned that the object is currently located near the Sun, necessitating a wait of about a month for researchers to conduct follow-up observations using ground-based telescopes. They also hope to eventually study the object with the Hubble Space Telescope or the James Webb Space Telescope.
In the meantime, Chen stated he remains committed to the quest for Planet Nine. However, new findings may complicate long-held theories about the existence of such a planet.
The hypothesis surrounding Planet Nine suggests that planets several times Earth’s size in the outer solar system might clarify why certain groups of icy objects seem to have unusually clustered orbits.
“Under the influence of Planet Nine, any object lacking a specific orbital geometry would eventually become unstable and be expelled from the solar system,” Yang explained.
Despite 2017’s long orbit leading it away from clustered objects, Yang’s calculations indicate that its path will remain stable for the next billion years.
In essence, if Planet Nine existed, 2017 would not persist. Yet, Yang emphasized that further research is essential, and the discovery of a new dwarf planet candidate does not definitively rule out Planet Nine’s existence.
For one thing, the simulations currently utilize a single hypothetical location for Planet Nine, and scientists do not all agree on the locations of these planets.
Konstantin Batygin, a planetary science professor at the California Institute of Technology, first proposed the existence of Planet Nine in a 2016 study co-authored with Mike Brown from Caltech.
He remarked that the discoveries related to 2017 neither confirm nor deny the theory. Batygin noted that outer solar system objects that might demonstrate gravitational influences of Planet Nine must have their closest points of orbit remain sufficiently distant and not interact significantly with Neptune.
“Unfortunately, this object does not fall into that category,” Batygin told NBC News. “It’s in a chaotic orbit, so the implications are not significant, as it complicates the scenario.”
Batygin expressed excitement about the new research for providing additional context regarding how objects evolve in the outer solar system, praising the researchers’ efforts in mining public datasets as “heroic.”
Chen, however, remains optimistic about finding Planet Nine.
“The entire project commenced as a search for Planet Nine, and I’m still in that mindset,” he remarked. “This, however, is an enthralling tale of scientific discovery. Whether or not Planet Nine exists, the pursuit is a captivating venture.”
A recent study conducted by researchers at Harvard Chan Public Health indicates that caffeine and regular coffee consumption during middle age are modestly and positively linked to various aspects of healthy aging in women. However, no notable correlation was found with tea or caffeinated coffee, whereas increased cola intake was associated with healthy aging and a lower likelihood of related health issues.
Mahdavi et al. Our aim was to explore the relationship between caffeine intake in middle age and the chances of healthy aging in older women participating in nurse health studies. Image credit: Sci.News.
“While earlier studies have linked coffee to specific health outcomes, this research is the first to evaluate coffee’s impact on multiple aspects of aging over three decades,” stated Dr. Sarah Mahadhabi, a researcher at Harvard Chan School of Public Health and the University of Toronto.
“The findings indicate that coffee may uniquely support aging processes that foster both mental and physical well-being.”
“Our study boasts several significant strengths, including a substantial sample size and three decades of follow-up. Moreover, we assessed various elements of longevity and healthy aging, in conjunction with comprehensive data on nutrition and lifestyle habits collected every four years after the study began.”
The research encompassed 47,513 women from the Nurses Health Survey, utilizing dietary and health data gathered since 1984.
Researchers evaluated caffeine consumption using a validated food frequency questionnaire, focusing on major caffeine sources like coffee, tea, cola, and caffeinated coffee.
Healthy aging was characterized as living to age 70 and above, free from 11 major chronic diseases, preserving physical abilities, maintaining mental health, exhibiting no cognitive impairment, and having no memory complaints.
Following 30 years of monitoring, researchers assessed how the probability of healthy aging varied with each additional 80 mg of caffeine consumed daily by the participants.
They also examined specific beverage types, including coffee, tea, caffeinated coffee (per 8-ounce cup), and cola (per 12-ounce glass).
The preliminary analyses identified other factors that might influence healthy aging, such as body weight, smoking habits, alcohol consumption, physical activity levels, educational attainment, and protein intake.
By 2016, 3,706 women in the study met all criteria for being classified as healthy agers.
Women aged between 45-60 typically consumed an average of 315 mg of caffeine daily, with over 80% of that derived from regular coffee consumption.
For those in the Healthy Agers Group, each additional cup of coffee per day was linked to a 2% to 5% increased likelihood of aging well, up to about 5 small cups per day, or approximately 2.5 standard cups by today’s measurements.
Researchers discovered no significant correlation between the consumption of decaffeinated coffee or tea and an elevated likelihood of healthy aging.
Importantly, for each additional glass of soda with caffeine, the chances of healthy aging decreased by 20-26%, indicating that not all caffeine sources are beneficial.
“While these findings are preliminary, they suggest that small, consistent habits can profoundly influence long-term health,” Dr. Mahadhabi noted.
“Moderate coffee intake can provide a range of protective benefits when coupled with other healthy practices, such as regular exercise, a balanced diet, and avoiding smoking.”
“This study expands on previous evidence linking coffee consumption to healthy aging, but the benefits of coffee are relatively modest compared to the impact of an overall healthy lifestyle, warranting further investigation.”
The findings were presented at the Survey results on June 2nd during the Nutrition 2025 annual meeting hosted by the American Nutrition Association.
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Sarah Mahadabi et al. Caffeine intake and healthy aging in women. Nutrition 2025 Summary #P22-039-25
Paranthropus robustus is a well-documented species within the Hominin group that has yet to be associated with genetic evidence. This species thrived in what is now South Africa between 2 million and 1.2 million years ago. In a recent study, paleontologists extracted enamel protein sequences from a dental specimen, believed to be 2 million years old, discovered at the Swartkrans site in South Africa. The results indicate a greater diversity than previously recognized for Paranthropus robustus and support the potential existence of multiple species within the genus.
Advancements in ancient DNA (aDNA) sequencing have provided essential insights into the evolutionary connections among mid- to late Pleistocene hominins. However, our understanding of the earlier Pliocene-Pleistocene species, including Paranthropus robustus, remains limited.
This limitation is primarily due to the poor preservation of aDNA in African hominin fossils older than 20,000 years.
Paranthropus robustus has traditionally been regarded as a singular evolutionary line.
Yet, morphological overlaps between Paranthropus robustus and Australopithecus raise questions about their possible evolutionary links.
Moreover, variations in dental morphology suggest either an undiscovered diversity within Paranthropus robustus or the existence of multiple distinct species.
In this study, researchers from the University of Copenhagen, the University of Cape Town, and Dr. Paresa Madupe employed more durable ancient proteins to explore the variation within this ancient human species.
Four tooth enamel proteins were analyzed using high-resolution mass spectrometry and paleontological techniques, focusing on Paranthropus robustus fossils from the Swartkrans cave.
These specimens, dating from 2.2 to 1.8 million years ago, are among the earliest known hominins.
Molecular analysis of the protein sequences revealed significant variation at the molecular level among Paranthropus robustus individuals, including evidence from both male and female fossils, challenging the reliability of tooth size as a sole indicator of sexual dimorphism and suggesting that this variance cannot be attributed exclusively to sexual differences.
Notably, one individual appears to be genetically distinct from the others, highlighting considerable intraspecies variability within Paranthropus robustus.
The results align with recent morphological evidence, indicating previously unrecognized taxonomic diversity within the genus, including the proposed species Paranthropus capensis.
“Our study illustrates how paleobiological traits can assist in distinguishing sexual dimorphism from other forms of variation in the early Pleistocene human lineage in Africa,” the authors concluded.
Paresa P. Madupe et al. 2025. Enamel proteins reveal biological and genetic variation in southern Africa Paranthropus robustus. Science 388 (6750): 969-973; doi: 10.1126/science.adt953
In collaboration with the Chicago-Carnegie Hubble program, astronomers utilizing the NASA/ESA/CSA James Webb Space Telescope have conducted new measurements of the Hubble constant. The findings align with the prevailing Lambda Cold Dark Matter (λCDM) model without necessitating the introduction of additional new physics.
This artist’s illustration depicts the universe’s evolution, starting with the Big Bang on the left. Following this, you can see the microwave background of the universe. The formation of the first stars ends the universe’s dark ages, leading to the creation of galaxies. Image credit: M. Weiss/Harvard – Smithsonian Center for Astrophysics.
“Emerging evidence indicates that standard models of the cosmos remain robust,” stated Professor Wendy Friedman from the University of Chicago.
“While this doesn’t rule out potential inconsistencies with the model in the future, it currently appears consistent concerning the Hubble constant.”
Presently, there are two primary methods for calculating the rate of the universe’s expansion.
The first method involves measuring the residual light from the Big Bang, which still permeates the universe.
This radiation, referred to as the cosmic microwave background, provides astronomers with insights into the universe’s early conditions.
Professor Friedman and her colleagues focus on the second method, which assesses the current rate of expansion in our local astronomical context.
Ironically, this approach poses more challenges than retracing cosmic history due to the difficulty of accurately measuring distances.
Over the last fifty years, scientists have developed several techniques to measure relatively nearby distances.
One method relies on detecting the light from a specific category of stars at their brightest moment when they explode as supernovae at the end of their lifecycle.
By knowing the peak brightness of these supernovae, astronomers can gauge their apparent luminosity and determine the distance.
Further observations reveal how fast the galaxy that the supernova originated from is moving away from us.
Images of CMB radiation captured by the Atacama cosmological telescope, where orange and blue signify differing radiation strengths. Image credit: ACT collaboration.
Professor Friedman has advanced two additional techniques utilizing knowledge from other star types: giant red stars and carbon stars.
However, considerable adjustments are necessary before finalizing these distance measurements.
Astronomers first need to account for cosmic dust that dims the light coming from these distant stars within our galaxy.
It is also critical to verify and correct for any luminosity variations that may occur over time and space.
Lastly, correction for any subtle measurement errors from the instruments utilized is essential.
Fortunately, technological advancements, such as the launch of the more powerful Webb telescope in 2021, have enabled scientists to refine these measurements significantly.
“We have more than doubled the sample of galaxies used to calibrate supernovae,” Professor Friedman noted.
“Statistical enhancements are valuable and will greatly improve the findings.”
The latest calculations from the team, which incorporate data from both the Hubble and Webb telescopes, yield a value of 70.4 km per second, with a margin of error of 3% per megaparsec.
This brings the value into statistical alignment with recent measurements from cosmic microwave background observations at 67.4 km per megaparsec, with an accuracy of plus or minus 0.7%.
The Webb telescope, with four times the resolution of Hubble, allows for the identification of individual stars that were previously recorded as blurry groupings.
It also offers enhanced precision and is approximately ten times more sensitive, enabling the detection of significant objects.
“We’re truly witnessing how remarkable the Webb telescope is for accurately measuring distances to galaxies,” stated Dr. Taylor Hoyt, a researcher at Lawrence Berkeley Laboratory.
“Its infrared detectors can penetrate the dust that has historically impeded precise distance measurements, enabling much more accurate brightness assessments of stars.”
“Astrophysicists are striving to formulate a theory that might elucidate varying rates of expansion as the universe ages,” Professor Friedman remarked.
“There are over a thousand scholarly papers addressing this issue, and it proves to be exceptionally challenging.”
The team’s research paper was published on May 27th in the Astrophysical Journal.
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Wendy L. Friedman et al. 2025. Status Report on the Chicago Carnegie Hubble Program (CCHP): Measurement of Hubble constants using Hubble and James Webb’s Space Telescopes. APJ 985, 203; doi:10.3847/1538-4357/adce78
Long-term conclusive results from US-based experiments have emerged. The latest release on Tuesday highlights a tiny particle behaving unexpectedly, which is still positive news for our understanding of Physics Laws.
“This experiment represents a remarkable achievement in precision,” noted Toba Holmes, an experimental physicist at the University of Tennessee Knoxville, who is not affiliated with the collaboration.
The enigmatic particles known as Muons are heavier than electrons. They exhibit a wobbling motion akin to a spinning top when subjected to a magnetic field, and scientists are scrutinizing this motion to determine its compliance with the well-established physics framework known as the standard model.
Findings from the 1960s and 1970s suggested everything was functioning as expected. However, investigations at Brookhaven National Laboratory in the late 1990s and early 2000s yielded unexpected results.
Decades later, an international coalition of scientists opted to revisit the experiment with enhanced accuracy. The team navigated Muons around magnetic, ring-shaped tracks akin to those used in the initial Brookhaven studies, and recorded the wobble signals at Fermilab National Accelerator Laboratory near Chicago.
The outcomes from the initial two sets published in 2021 and 2023 appear to affirm the odd behavior of Muons, encouraging theoretical physicists to reconsider the standard model alongside new metrics.
Recently, the team finalized the experiment and published Muon wobble measurements that align with their earlier findings, utilizing more than double the data collected in 2023.
Nevertheless, this does not finalize the fundamental understanding of what underpins the universe. As Muons travel along their paths, other researchers have devised methods to better harmonize standard models with observed behaviors, leveraging the power of supercomputers.
Further investigation is essential as researchers collaborate, and upcoming experiments will encourage future studies that assess Muon wobble. Scientists are also examining the latest Muon data for insights into other mysterious entities like dark matter.
“This measurement will serve as a benchmark for years to follow,” remarked Marco Incagli from the Italian National Institute of Nuclear Physics.
In their pursuit of Muons, scientists aim to unravel fundamental questions that have long intrigued physicists, as noted by Peter Winter from the Argonne National Laboratory.
“Isn’t it something we all wish to understand—how the universe operates?” Winter questioned.
In Sydney, Australia, Okkatoo has mastered the use of public water fountains by turning the handle, a feat not easy for birds. It appears they are imitating one another’s actions.
The Occato, or Kakatua Gallerita, engages in an intellectual competition, as some individuals have figured out how to open waste bins in eastern Sydney. In response, humans devise ways to keep these bins locked while continuing to find methods to open them.
Following reports of similar occurrences with Okkatoos using drinking fountains in western Sydney, Lucy Aplin from the Australian National University and her team temporarily marked 24 Occatos, accounting for a fifth of the local population. They documented the interactions at various drinking fountains, known as Bubblers in Australia.
Okkatoo using Sydney drinking fountain
Klump et al. 2025
During a 44-day observation, Cockatoos made 525 attempts to use a particularly popular fountain. Out of these, 105 attempts were made by 17 of the 24 marked birds. This indicates that about 70% of the more than 100 local birds attempted to use the fountain, according to researchers.
In their natural habitats, these birds typically drink from ponds or water stored in tree hollows near their roosts. However, Aplin notes they seem to prefer using the fountains instead, especially in the morning and evening, which are their regular drinking times before resting.
Researchers even observed more than 10 birds waiting for their turn at one bubbler, but the more dominant birds would often jump the queue.
Despite only 41% of the observed attempts being successful, the act of drinking from the fountain is certainly not a trivial task for these birds, according to Aplin.
“Birds must navigate their bodies through complicated movements,” she explains. “They often place one foot on the drinking fountain’s base and twist the handle with the other foot while leaning in to leverage their weight.”
She suspects that once an individual learns the technique, others follow suit by mimicking the actions.
“This serves as a clear example of culture—newly socially transmitted behaviors—which might surprise those who view culture as solely a human trait,” says Christina Zdenek from the University of Queensland, Australia. “Their innovative abilities in accessing new food and water sources are remarkable across the Tree of Life.”
Why are the Okkatoos doing this? Aplin posits that the water may taste superior to muddy pond water, or perhaps the bubbler offers a safer alternative from predators. It could also be a trend fueled by their thirst for innovation.
The private spacecraft is set to attempt a landing this week. Should the Japanese company ISPACE succeed on this attempt, it would mark a historic achievement as the first non-US enterprise to land on the moon, following a failed attempt in 2023.
ISPACE’s Resilience Lander embarked on its journey towards the moon on January 15th. It launched with the assistance of a SpaceX rocket and Firefly Aerospace’s Blue Ghost Lander. While Blue Ghost made a successful landing on March 2nd, Resilience traveled a longer path, traversing deeper into space before entering lunar orbit on May 6th. This intricate route was essential for landing in the hard-to-reach northern plains of Mare Frigoris, which had been uncharted by previous lunar missions.
If the probe executes its landing operations successfully, it will commence its landing sequence on June 5th at approximately 7:20 PM BST, with a landing in Mare Frigoris scheduled an hour later. The landing attempt will be broadcast live on ISPACE’s YouTube channel.
The lander is outfitted with six diverse experiments, including a device capable of splitting moisture into hydrogen and oxygen for usable resources, a module for producing food from algae, and a radiation monitor for deep space studies. Additionally, it will deploy a 5-kilogram rover named Tenalious, tasked with exploring the lunar surface and capturing images during its anticipated two-week mission.
This marks ISPACE’s second attempt at a lunar landing, following the initial Hakuto-R spacecraft, which lost communication and crash-landed on the moon. The company asserts that it has enhanced Resilience with improved sensors leveraging data gathered from the initial mission, yet challenges remain, particularly in slowing the spacecraft from several hundred kilometers per hour to a complete stop in just three minutes. Should ISPACE choose to abort the landing on June 5th, there are three alternate landing sites and dates prepared as contingencies.
Egg mass containing invasive adult termites Coptotermes gestroi
T Chouvenc, UF/IFAS
Florida’s latest termites offer a unique two-for-one deal, but there’s no celebration for them. Two species of invasive wood-eating insects have interbred, resulting in hybrid colonies that can produce extraordinarily resilient termites, posing a threat to both buildings and forests.
The results are “intriguing and unexpected,” notes Edouard Duquesne, a researcher at the Free University of Brussels, who was not part of the study. “The viable hybrids of these species could have a significantly broad geographic range, leading to highly invasive termites capable of causing severe damage.”
Since 2010, termite infestations have resulted in $40 billion in annual losses, with around 80% attributed to the Coptotermes genus. The Formosan subterranean termites (Coptotermes formosanus) have invaded many warm temperate regions of the Northern Hemisphere, while their Asian counterpart, Coptotermes gestroi, has expanded from Southeast Asia to tropical areas worldwide. Since the late 1990s, both species have overlapped in southern Florida, according to Thomas Chouvenc at the University of Florida.
In 2015, Chouvenc and his team demonstrated that these two species could produce hybrid offspring in controlled environments. By 2021, Chouvenc discovered alates—winged termites that establish new colonies—with characteristics merging those of the Formosan and the smaller, darker Asian species. These hybrids were identified in Fort Lauderdale, Florida, and were confirmed through genetic testing. A hybrid nest was also found in a local park adjacent to the marina.
In 2024, the existence of wild hybrids was validated by Taiwanese researchers, confirming that these species have coexisted for a century in southern Florida.
“It’s only a matter of time before we see hybridization and the establishment of hybrid populations wherever these two species coexist,” warns Chouvenc.
Researchers have also observed that first-generation hybrid females can mate with males from either parent species. Chouvenc expresses concern that gene flow between the species could lead to the emergence of a termite population that thrives in a wider range of environmental conditions, including temperature variations. The proximity of these termites to a busy port heightens the risk that such hybrids could be transported globally.
“We [humans] didn’t pay enough attention, and as a result, we’ve allowed these termites to spread,” Chouvenc added.
Paleontologists have discovered peptide markers for three extinct Australian megafauna. This breakthrough facilitates research on creatures such as hippo-sized wombats, colossal kangaroos, and marsupials with enormous claws, aiding our understanding of the series of enigmatic extinctions that took place 50,000 years ago and the potential role of humans in these events.
“The geographical distribution and extinction timeline of Australia’s megafauna, along with their interaction with early modern humans, are subjects of intense debate,” commented Professor Katerina Dorca from the University of Vienna.
“The limited fossil finds at various paleontological sites across Australia complicate the testing of hypotheses regarding the extinction of these animals,” added Dr. Kali Peters, Ph.D., of the University of Algarbe.
“Using ZooMS (Zoo departments by mass spectrometry) can aid in increasing the number of identified megafauna fossils, provided that collagen peptide markers for these species are accessible.”
Through the analysis of peptides in collagen samples, researchers can differentiate between various animal species, occasionally even distinguishing among different variants.
Collagen proves to be more resilient than DNA, making this method effective in tropical conditions where DNA may not endure.
However, most reference markers originate from Eurasian species that are not found elsewhere.
This study aims to develop new reference markers tailored for Australian contexts, enhancing the understanding gleaned from the fragmented fossil records of Australia.
“Proteins tend to endure better over extensive time periods and in harsh environments compared to DNA,” noted Dr. Peters.
“Thus, in studying megafauna extinction, proteins might still be preserved even in the absence of DNA.”
The research focused on three species crucial for comprehending megafauna extinction: Zygomaturus trilobus, Palorchestes Azael, and Protemnodon Mamkurra.
Zygomaturus trilobus and Palorchestes Azael belong to a lineage of animals that vanished entirely during the late Quaternary period, while Protemnodon Mamkurra survived long enough to likely coexist with humans arriving in Tasmania.
Scientists previously dated fossilized bones from one species back over 43,000 years.
“Zygomaturus trilobus was among the largest marsupials that ever lived, appearing much like a hippo-sized wombat,” said Professor Douka.
“Protemnodon Mamkurra was a massive, sluggish kangaroo that might have occasionally walked on all fours.”
“Palorchestes Azael was a uniquely shaped marsupial with a distinctive nose and long tongue, powerful forelimbs, and a skull equipped with large claws.”
“If ancient continents connected early modern humans to what we now know as Australia, New Guinea, and Tasmania 55,000 years ago, they would have encountered astonishing creatures.”
The researchers eliminated contaminants and compared peptide markers using reference markers.
The collagen in all three samples was well-preserved, enabling the identification of appropriate peptide markers for each species.
With these markers, paleontologists successfully differentiated Protemnodon from five living genera and one extinct genus of kangaroo.
They could also differentiate Zygomaturus and Palorchestes as these two species couldn’t be distinguished from other large extinct marsupials.
This is common in ZooMS, given that collagen changes accumulate slowly over millions of years of evolution.
Unless further studies enhance specificity, these markers are most effective at identifying bones at the genus level rather than the species level.
Nevertheless, Zoom’s ability to distinguish genera from temperate regions presents opportunities to try and identify bones from tropical regions, where closely related species may feature similar or identical peptide markers, since DNA preservation is rare in these environments.
“The introduction of newly developed collagen peptide markers allows us to identify a multitude of megafauna remains in Australia’s paleontological collections,” stated Dr. Peters.
“Yet, many more species still require characterization through collagen peptide markers.”
“For instance, Diprotodon, the largest marsupial genus ever known, and Thylacoleo, the largest marsupial predator.”
The team’s findings will be published in the journal Frontiers in Mammal Science.
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Kari Peters et al. 2025. Collagen peptide markers from three Australian megafauna species. Front. Mammal. Sci. 4; doi:10.3389/fmamm.2025.1564287
The Milky Way galaxy is often believed to be on a collision path with the neighboring Andromeda galaxy. This merger, anticipated roughly 5 billion years in the future, is expected to create a new elliptical galaxy. However, recent studies indicate that the likelihood of such a catastrophic event may be less than previously assumed.
These images depict three encounter scenarios between the Milky Way galaxy and the neighboring Andromeda galaxy. Top left: Messier 81 and Messier82. TopRight: NGC6786. BOTTOM: NGC 520. Image credits: NASA/ESA/STSCI/DSS/Till Sawala, Helsinki University/Joseph Depasquale, STSCI.
The Milky Way navigates through space, its trajectory affected by the gravitational forces from nearby galaxies, including Andromeda, Triangulum, and the Large Magellanic Cloud.
Consequently, prior studies have proposed for over a decade that the Milky Way is likely to collide with Andromeda, forming a new elliptical galaxy referred to as Milkomeda in about 5 billion years.
Dr. Thiru Sawara, an astronomer at the University of Helsinki, stated:
In their latest research, Dr. Sawara and colleagues utilized updated data from the ESA Gaia satellite and the NASA/ESA Hubble Space Telescope to model the Milky Way’s movement through space over the next 10 billion years, while also refining estimates of the masses of local galaxies.
They discovered that there is about a 50% chance that no collision will occur between the Milky Way and Andromeda during this time frame.
The authors suggest that previous analyses overlooked certain calculations and uncertainties, including the gravitational influence of the Large Magellanic Cloud (a smaller galaxy orbiting the Milky Way).
They also propose that a merger with the Magellanic Clouds is nearly certain within the next two billion years, prior to any potential interaction with Andromeda.
“Even with the latest and most precise observational data at hand, the future of local galaxy groups remains uncertain,” Dr. Sawara remarked.
“Interestingly, there are roughly equal probabilities of widely discussed merger scenarios or, conversely, scenarios where the Milky Way and Andromeda remain unaffected.”
The team’s findings will be featured this week in the journal Nature Astronomy.
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T. Sawara et al. There is no certainty regarding the Milky Way and Andromeda collision. Nature Astronomy. Published online on June 2, 2025. doi:10.1038/s41550-025-02563-1
Regularly incorporating chickpeas into your diet can lead to a notable reduction in cholesterol levels. Discover more at the Nutrition 2025 Meeting in Orlando.
A 12-week research study by the Illinois Institute of Technology explored the impact of consuming one glass of chickpeas or black beans daily with a group of 72 pre-diabetic adults.
Participants were randomly assigned to consume chickpeas, black beans, or rice (as a control) along with their usual meals. Blood samples were taken at the beginning, middle, and conclusion of the study to monitor alterations in cholesterol, inflammation, and blood glucose levels.
The findings indicated that total cholesterol levels dropped significantly from an average of 200.4 to 185.8 milligrams per deciliter after 12 weeks of daily chickpea intake.
Among the legumes studied, only chickpeas were linked to lower cholesterol. “No significant changes in cholesterol were detected with black bean consumption,” stated Morgan Smith, who spoke to doctoral candidates from the Illinois Institute of Technology presenting their research at the conference. BBC Science Focus.
Additionally, chickpeas appeared to reduce inflammation in the short term. “By the six-week mark of chickpea consumption, we noted a significant decline in highly sensitive C-reactive protein (HS-CRP),” Smith remarked. This protein serves as a marker for inflammation in the body.
“Nevertheless, these results diminished by week 12. Although HS-CRP remained lower at week 12 compared to the baseline, the distinctions were no longer statistically significant,” she explained.
Conversely, while black beans did reduce inflammation, they did not impact cholesterol levels.
These results imply that chickpeas and black beans may provide varied health advantages due to their unique nutritional compositions.
Participants consuming one glass of chickpeas daily for 12 weeks experienced a significant reduction in cholesterol levels. – Getty
“We are currently investigating this, particularly concerning the bioactive components that set apart black beans from chickpeas,” Smith added. “We are analyzing the (poly)phenol content of both the intervention and the corresponding metabolite profile in the blood.”
Smith noted that chickpeas and black beans were selected for their “richness in dietary fiber, plant-based proteins, and bioactive compounds,” and for their convenience as canned options.
“Participants were in a free-living state and simply asked to integrate canned black beans or chickpeas into their regular diet without any specific preparation guidelines,” she stated.
While the study did not yield changes in blood glucose levels, researchers are still examining data related to glucose regulation and plan to explore how legumes influence gut microbiota.
“We are particularly focused on identifying changes in microbial metabolites, like short-chain fatty acids, and how these alterations enhance metabolic health outcomes,” Smith remarked.
“Ultimately, our aim is to deepen our understanding of the connections between diet, microbiome, and chronic disease prevention.”
The complete findings of this study are yet to be published in peer-reviewed journals.
About our experts
Morgan Smith is a doctoral candidate in food science and nutrition at Illinois Institute of Technology. She has contributed to peer-reviewed research featured in the journals Nutrition and Healthy Aging and Metabolites.
San Juan, Puerto Rico – Enveloped in a significant amount of dust clouds from the Sahara Desert, the Caribbean is headed towards the US on Monday for one of the year’s most noteworthy events.
These clouds have expanded from Jamaica, stretching approximately 2,000 miles (3,200 kilometers) past Barbados in the Eastern Caribbean, and about 750 miles (1,200 kilometers) from the Turks and Caicos Islands down to Trinidad and Tobago.
“It’s quite remarkable,” noted Alex Dasilva, a hurricane expert at Accuweather.
The hazy skies have triggered sneezing, coughing, and watery eyes throughout the Caribbean. Local meteorologists are advising individuals with allergies, asthma, or other respiratory issues to stay indoors or wear face masks when outside.
Idiana Zayas, a forecaster at the National Weather Service in San Juan, Puerto Rico, reported elevated dust levels.
As per the National Oceanic and Atmospheric Administration, an aerosol’s optical depth quantifies how many particles obstruct sunlight from reaching the ground.
The plume is anticipated to reach Florida, Louisiana, Alabama, and Mississippi later this week and over the weekend, Dasilva mentioned.
However, he indicated that plumes often lose much of their density in the Eastern Caribbean.
“These islands typically face higher concentrations that can partially block sunlight, leading to more noticeable effects,” he remarked.
The dry, dusty air known as the Saharan air layer originates from the African Sahara Desert and travels westward from around April to October, according to NOAA. It also hinders the formation of tropical waves during the Atlantic hurricane season, which runs from June 1 to November 30.
June and July generally see the highest average dust concentrations, with plumes moving between 5,000 and 20,000 feet above ground, Dasilva pointed out.
In June 2020, record levels of Sahara dust filled the Caribbean. The scale and density of the plume were unprecedented in half a century, prompting forecasters to label it the “Godzilla Dust Cloud.”
The Cascadia subduction zone, a vast fault line extending from Northern California to British Columbia, has remained unsettlingly silent for 300 years. Should it finally rupture, a substantial earthquake is anticipated to shake the Pacific Northwest for several minutes.
Even more alarming, the resulting tsunami could generate waves reaching up to 100 feet (30 meters), wreaking havoc along the coast.
New research published in Proceedings of the National Academy of Sciences indicates that this event would only mark the onset of Cascadia’s cataclysm.
As if waves equivalent in size to those of the 2004 Boxing Day tsunami weren’t frightening enough, the latest analysis reveals land along the coast could subside by more than 2.5 meters (8 feet) almost instantaneously.
“We often discuss climate-induced sea level rises at a rate of 3-4 millimeters annually,” noted Professor Tina Dura, the lead author of the study, in an interview with BBC Science Focus. “But here, we could witness a 2-meter sea level rise in just a few minutes. Why aren’t we talking about that more?”
What Happens When Cascadia Erupts?
The Cascadia subduction zone represents the boundary where the oceanic Juan de Fuca plate descends beneath the North American plate. However, these tectonic plates tend to get stuck rather than moving freely. When they finally lock in place, immense pressure builds over centuries.
Once this pressure is released, it results in a formidable earthquake.
Cascadia is capable of producing earthquakes reaching magnitudes of 9.0 or higher, historically experienced once every 450-500 years. The last event occurred on January 26, 1700, with estimates suggesting its magnitude was likely between 8.7 and 9.2.
According to the US National Earthquake Hazard Model, there is a 15% chance of experiencing earthquakes of magnitude 8.0 or greater in this zone over the next 50 years.
Planning exercises conducted by the Federal Emergency Management Agency in 2022 predicted that these tremors could directly result in 5,800 fatalities, with an additional 8,000 lives lost to the tsunami.
Over 100,000 individuals could be injured, and more than 618,000 buildings could be damaged or destroyed, impacting over 2,000 schools and 100 critical facilities. The estimated economic impact: $134 billion.
“This will definitely be a catastrophic event for the United States,” Dura stated.
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Aftershocks That Will Last for Decades
While the earthquake and tsunami will be devastating on their own, Dura and her colleagues warn that the long-term consequences could be equally destructive.
By integrating historical records of past Cascadia earthquakes with geological data from numerical models, the researchers assessed how coastal landscapes may be altered due to subsidence from the sudden sinking of land during an earthquake.
If a Cascadia earthquake were to occur today, land at 24 estuaries stretching from southern Washington to northern California could drop anywhere from 0.23 to 2.67 meters (0.76 to 8.76 feet) in minutes.
This could significantly expand the 100-year flood plain by 300 square kilometers (115 square miles), meaning more homes, roads, and infrastructure would fall into at-risk areas. In a severe subsidence scenario, flood exposure could more than double.
“It’s a dual threat,” Dura explained. “The tsunami will be catastrophic, but we also know that some locations will face extreme impacts, while others will experience serious repercussions due to the geographic layout of the coast.”
Located in the US Pacific Northwest and southwest British Columbia, the Cascadia subduction zone last shifted in 1700, resulting in a major earthquake. – John Wesley Powell Analysis and Synthesis/Center for USGS
In 1700, the infrastructure suffered minimal damage. Today, the region is filled with critical systems that remain vulnerable to inundation. These include five airports, 18 emergency facilities (such as schools, hospitals, fire stations), eight wastewater treatment plants, one current, and 57 potential contamination sources like gas stations and chemical storages.
Submerged roads and flooded emergency hubs could severely impede recovery, while saltwater intrusion could damage farmland, resulting in long-term economic repercussions.
Furthermore, natural flood defenses like intertidal wetlands could be inundated or eroded, weakening protection against future storm surges. Rising tidal ranges could compound high-water flooding and may exacerbate the erosion of sandy coastlines.
“Once the tsunami hits and eventually recedes, the land will remain at a lower level,” Dura noted. “The flood plain footprint will evolve over decades, and even centuries.”
The Sooner It Hits, The Better
While the occurrence of an earthquake is inherently negative, the longer Cascadia remains quiet, the worse the ultimate disaster may be.
Researchers simulated what would occur if an earthquake were to strike in 2100 instead of today. With climate change, rising sea levels could exacerbate the consequences.
The global average sea level has already seen an increase of 21-24 cm (8-9 inches) since 1880, as reported by the National Oceanic and Atmospheric Administration. Projections suggest an increase of at least 20 cm (2 feet) by 2100.
However, the situation in Cascadia is somewhat complex. As the Juan de Fuca plate slides beneath the North American plates, the land on the continent is gradually uplifted, temporarily masking the implications of global sea level rise.
This slow upward thrust won’t last indefinitely. Eventually, climate change will catch up, leading to a rise in sea levels in the Pacific Northwest on par with other areas. Consequently, the two challenges—tectonic and climatic—are converging.
“You can imagine that when the land subsides during the next earthquake, you suddenly have to contend with centuries of comparable sea level rise,” Dura remarked.
By 2100, even without earthquakes, researchers estimate that flood plains could expand by 100 square kilometers (40 square miles). This, combined with subsidence from a potential earthquake, could triple flood exposure compared to today, resulting in a flood plain enlargement of up to 370 square kilometers (145 square miles).
How Can You Prepare?
What steps can communities take to prepare for this complex threat that combines earthquakes, tsunamis, subsidence, and sea level rise?
Dura admitted that there is no straightforward solution.
“Cascadia presents a unique challenge due to its prolonged quietude,” she said. “It’s tough to keep residents informed about the risks without inciting undue panic. How do you prepare without instilling fear?”
As an initial measure, Dura’s team suggests incorporating their findings into flood hazard and tsunami maps and collaborating across agencies to enhance preparedness.
Key actions include identifying critical infrastructure in future flood zones, planning for relocation or adaptation, promoting nature-based solutions by raising public awareness, restoring wetlands, and carefully considering new developments in high-risk areas.
Is all hope lost? Dura insists that time is of the essence.
“There are certainly individuals actively working on this. I don’t want to undermine their efforts,” she said. “But we need more people engaged in the issue. Perhaps we lack adequate resources, funding, or personnel, but collective efforts are being made, and significant new research is emerging.”
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About Our Experts
Tina Dura is an assistant professor of natural disasters at Virginia Tech in the United States. She specializes in subduction zone paleogeography, integrating methodologies from coastal stratigraphy, sedimentology, microbiology, paleoconservation, geophysics, and sediment transport modeling, as well as sea level research to reconstruct the extensive history of subsidence along the coastal region.
New research suggests that consuming sweet beverages poses a greater risk of type 2 diabetes compared to eating foods that contain sugar.
The study from Brigham Young University (BYU) in the US found that sugary drinks, such as sodas and fruit juices, are linked to an increased likelihood of developing the disease, whereas no similar connection was found with sugar intake from solid foods.
Dr. Karen Dela Corte, the lead author of the study and a professor of nutrition sciences at BYU, stated that the findings highlight why consuming sugar in the form of beverages like soda and juice is more detrimental to health than ingesting it through food.
Researchers analyzed data from 29 studies involving over half a million individuals across Europe, the Americas, Asia, and Oceania to identify which sources of sugar are most closely associated with the onset of type 2 diabetes.
The analysis revealed that a 340ml (12oz) serving of sugary drinks (including soft drinks, energy drinks, and sports drinks) increases the risk of type 2 diabetes by 25%.
Fruit juices, such as pure fruit juice and various juice drinks, exhibited similar effects, even when consumed in moderation. An additional 226ml (8 oz) serving per day raised the risk by 5%.
These risks are relative; for instance, if an individual has a baseline risk of 10% for developing type 2 diabetes, consuming four sodas daily could elevate that risk to around 20%.
Conversely, dietary sugars derived from fruit, table sugar, and general sugar content were not linked to a higher risk of type 2 diabetes and may even be associated with a lower risk in some cases.
While a good source of nutrients, certain fruit juices can contain sugar levels comparable to those in sweet sodas. – Credit: dmitriy83 via Getty
As this study is observational, it cannot definitively establish a direct cause-and-effect relationship between sugary drinks and type 2 diabetes. It’s possible that individuals who consume more sugary beverages are more likely to develop the condition.
The researchers adjusted their analyses to account for calorie intake, obesity, and other lifestyle factors, allowing them to isolate the impact of sugar itself instead of focusing on overall caloric consumption.
Nevertheless, Dela Corte emphasized that the findings highlight the necessity for more stringent nutritional guidelines regarding liquid sugars, including fruit juices, in relation to health. “Future dietary recommendations may need to differentiate the health impacts of sugar based on its source and form,” she said.
The NGC 685 is abundant in star-forming nebulae and appears as a dazzling pink cloud in recent images captured by the NASA/ESA Hubble Space Telescope.
This Hubble image illustrates the Spiral Galaxy NGC 685 on the bar. The color images were created from individual exposures captured in ultraviolet light using Hubble’s Wide Field Camera 3 (WFC3) and derived from visible and near-infrared sections of the spectrum. Built upon data gathered through six filters, different hues are assigned to each monochromatic image related to a specific filter. Image credits: NASA/ESA/Hubble/J. Lee/F. Belfiore.
NGC 685 is situated approximately 64 million light-years away in the southern constellation of Eridanus.
Previously known as ESO 152-24, IRAS 01458-5300, or LEDA 6581, the galaxy was discovered by British astronomer John Herschel on October 3, 1834.
Spanning around 74,000 light-years, the galaxy features a luminous central bar and a distinctively curved arm.
“NGC 685 is classified as a barred spiral galaxy, with its delicate spiral arms emerging from the edge of a stellar bar at the heart of the galaxy,” Hubble astronomers stated.
“The Milky Way, while not a perfect spiral, is nearly twice the size of NGC 685.”
Astronomers utilized Hubble for two observational programs focused on star formation in NGC 685.
“It’s no surprise that NGC 685 was selected for these studies. The galaxy’s spiral arms are marked by numerous patches of young blue stars,” they noted.
“Many of these star clusters are enveloped by a vibrant pink gas cloud known as the H II region.”
“The H II region is a gas cloud that gleams momentarily, especially during the birth of a massive, hot star.”
“The particularly striking H II region can be seen near the lower edge of the image.”
“Despite the visible star-forming regions, NGC 685 converts gas into stars each year at a rate of less than half the mass of the sun.”
“The data collected by Hubble across two observational programs enables us to catalog 50,000 H II regions and 100,000 star clusters in nearby galaxies.”
“By merging Hubble’s sensitive visibility and ultraviolet observations with data from the NASA/ESA/CSA James Webb Space Telescope and wireless data from the Atacama Large Millimeter/submillimeter Array, we explore the depths of dusty star nurseries and illuminate the stars within.”
Paleontologists have uncovered evidence of previously unrecognized soft tissue structures in the cheek areas of various dinosaur species. This discovery deepens our understanding of dinosaur anatomy and underscores the limitations of current methods for reconstructing anatomical features that are not well preserved.
Soft tissue visualization of Edmontosaurus created through photography, 3D modeling, digital painting, and histology of bones in the Alberta Dinosaur Park, Canada. Image credit: Henry Sharp.
“Such examples of soft anatomy in dinosaurs are rare due to the degradation of muscles and tissue over time,” remarked Henry Sharp, a paleontologist from the University of Alberta.
“While bones can be excavated and assembled into semi-complete skeletons, for a long time, there was no effective way to discern the muscles and tissues present in dinosaurs.”
“In the 1990s, existing systematic brackets utilized the closest living relatives of dinosaurs—alligators and birds—to gain insight into their ’tissues and muscles.’
“However, this approach has its shortcomings: the muscles reconstructed in dinosaurs are those found in alligators and birds.”
“What if dinosaurs possessed their own unique muscles that aren’t present in their modern relatives, or if birds have lost or adapted their original musculature?”
“While examining a skull of Edmontosaurus, affectionately named Gary, I noticed a distinctive flange structure atop the bone near its prominent cheek.”
“As I delved deeper, I struggled to find answers.”
“There were large, corrugated sections of the skull. In a mammalian skull, I would interpret that as cheek muscle attachment. Yet, reptiles are not supposed to exhibit such muscle structures.”
“This sparked intrigue. What if this finding contradicted existing models of dinosaur musculature?”
To gain a clearer understanding of this aspect of dinosaur anatomy, Sharp and his colleagues from the University of Alberta, the University of Toronto, the Royal Museum of Ontario, and the University of New England began investigating similar regions in the skulls of other dinosaur species, uncovering evidence of analogous structures.
“The findings were consistently located in the same area. This strongly suggests that it represents a muscle or ligament,” Sharp explained.
To validate their hypothesis regarding this bone area being a site for some type of soft tissue structure, researchers meticulously cut thin sections of dinosaur bone.
“Soft tissues, such as muscles and ligaments, are anchored to the bone via collagen fibers,” Sharp stated.
“These fibers help secure the muscle or ligament, preventing detachment and potential injury to the animal.”
Once the soft tissue deteriorates, what remains are the collagen fibers, which can be examined through thin slices of bone under polarized light.
“It appears as if someone has fractured a bone at the surface and then scraped it with an X-acto knife,” Sharp noted.
The researchers employed a technique called sleepy to analyze various angles of the zygomatic and mandibular bone slices, enabling them to investigate the 3D orientation of the collagen fibers.
“These collagen fibers don’t insert haphazardly; they align with the angles where muscles attach,” Sharp added.
In all examined dinosaur species, collagen fibers manifested connections between the cheek and lower jaw, reinforcing the idea that the soft tissue structure resembles cheek muscles and ligaments.
Variation in the size and attachment angles across different dinosaur species suggests that this newly identified soft tissue played specialized roles, such as stabilizing the jaw and influencing feeding behavior.
“While we don’t fully understand its precise functions, it is evident that these soft tissues significantly impacted how these dinosaurs chewed.”
“This discovery underscores the importance of comparing dinosaur fossils with those of modern relatives for a more nuanced and accurate comprehension of extinct anatomy.”
“Dinosaurs exhibit considerable diversity, yet we often overlook significant aspects by attempting to interpret the past solely through the lens of contemporary conditions.”
Henry S. Sharp et al. Skull morphology and histology reveal previously unexpected cheek soft tissue structures in dinosaurs. Journal of Anatomy, published on March 21, 2025. doi:10.1111/joa.14242
This article is a rendition of a press release provided by the University of Alberta.
Astronomers leveraging the NASA/ESA/CSA James Webb Space Telescope have identified water, carbon monoxide, and methane in the atmosphere of WASP-121B, as well as in Earth’s nightside atmosphere. This marks the first detection of silicon monoxide in any planetary atmosphere, including those within our solar system and beyond.
This artistic impression illustrates the phase during which WASP-121B collects most of its gas, inferred from recent findings. Image credit: T. Muller, MPIA & HDA.
WASP-121B is approximately 1.87 times larger and 1.18 times more massive than Jupiter.
First discovered in 2016, it completes an orbit around its host star, the F6-type WASP-121 (TYC 7630-352-1), in just 1.3 days, as observed by the WASP-SOUTH SURVEY.
The WASP-121 system is situated about 881 light years away in the constellation of Puppis.
Characterized as an Ultra Hot Jupiter, WASP-121B orbits its parent star in a mere 1.3 days, being so close that the star’s gravitational pull begins to physically disrupt it.
Estimates suggest that the temperatures on the planet’s eternal daytime side exceed 3,000 degrees Celsius, while the nightside cools down to around 1,500 degrees Celsius.
“The discovery of silicon monoxide in the atmosphere of WASP-121B is revolutionary, marking the first definitive identification of this molecule in any planetary atmosphere,” stated Dr. Anjali Piette, an astronomer at the University of Birmingham.
“The composition of the nightside atmosphere of WASP-121B indicates vertical mixing: the transport of gases from deeper atmospheric layers to the peak observed in infrared light.”
“We were surprised to find methane on the nightside given the extreme temperatures of this planet.”
Measurements of carbon-to-hydrogen, oxygen-to-hydrogen, silicon-to-hydrogen, and oxygen-to-oxygen ratios in the atmosphere suggest that during its formation, WASP-121B’s atmosphere was enriched by inner rocky materials enhanced by erosion-resistant bombardment.
“They’re outstanding,” remarked Dr. Thomas Evans Soma, an astronomer at Newcastle University.
In their research, astronomers employed a method known as phase curve observation, which entails tracking a planet’s orbit around its star and analyzing variations in its brightness.
These observations reveal details about both the daytime and nighttime hemispheres, along with their chemical makeups.
“The successful detection of these elements and characterization of WASP-121B’s atmosphere with Webb showcases the telescope’s capabilities and sets a precedent for future exploratory research,” Dr. Piette remarked.
Study published today in the journal Nature Astronomy.
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TM Evans-Soma et al. Ultra-Stellar C/O ratio in the atmosphere of SIO and giant exoplanet WASP-121. Nature Astronomy Published online on June 2, 2025. doi:10.1038/s41550-025-02513-x
Cat (Ferris Katas) has become a beloved companion to people worldwide. Despite its widespread popularity, the genetic factors influencing its behavior have been largely unexplored. A new research team from the Kyoto University Wildlife Research Center has focused on the Androgen receptor gene (ar), located on the X chromosome, and its association with feline behaviors, such as purring.
Okamoto et al. found that male cats with short alleles displayed higher directional call/voicing scores, whereas females with short alleles exhibited increased aggression towards strangers compared to their counterparts with long alleles. Image credit: Natary Anderson.
“Cats are cherished companion animals that significantly contribute to society through their interactions with humans,” said lead author Okamoto and colleagues.
“However, most negrid species, such as the African Wildcat (Ferris Livica), have solitary ancestors, while domestic cats often form groups and display social behaviors.”
“They communicate with both humans and other cats utilizing a range of behaviors and signals, including olfactory cues, touch, visual cues, and vocalizations.”
“Purring, a distinctive vocalization of cats, plays a significant role in vocal communication.”
“Initially, purring may signify a mother’s health, but it continues to facilitate communication among cats beyond the weaning phase.”
“In a social context, purring promotes security and comfort, expresses familiarity, and invites play, though its precise function remains unclear.”
For this study, researchers evaluated the behavior of 280 cats, all of whom were neutered or mixed breeds living in their owners’ homes.
DNA samples were collected and analyzed to compare the ar gene with those from other negrid species.
“Upon reaching out to participants, we quickly received responses and warm messages from 265 cat owners across Japan within just a day,” Okamoto remarked.
“This highlighted the strong public interest in feline research.”
“The findings suggest a genetic basis for both purring and vocal communication.”
“Cats with the short-type androgen receptor gene received higher ratings from their owners than those with the long-type gene.”
“Additionally, male cats with the short form displayed increased vocalizations towards humans, indicating a genetic link to vocal communication.”
“Conversely, female cats with the shorter-type gene demonstrated heightened aggression towards unfamiliar individuals.”
“These findings could indicate a decreased significance of vocal communication in cats raised by humans from kittenhood, particularly those that are typically purebred.”
“Prior studies indicated that purebred cats are more likely to carry long-form genes than their mixed-breed counterparts.”
“This study included numerous mixed-breed cats that were rescued and were previously strays.”
Through comparisons of cat genes with 11 other genes, researchers discovered that both leopard and fishing cats were genetically similar to domestic cats and possessed shorter types, while domestic cats did not exhibit longer types found in other species.
These results imply that the emergence of long types may be linked to genetic changes related to domestication and selective breeding.
“These results may help predict behavioral trends based on genetic data, enhance observation and care based on needs, and ultimately improve animal welfare,” the authors stated.
The team plans to broaden their research focus to include other negrid species.
“Through our research, we aim to enrich our understanding of cats and foster better relationships between felines and humans,” Okamoto concluded.
This study was published online on May 28th in PLOS 1.
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Y. Okamoto et al. 2025. The relationship between androgen receptor genes and cat behavioral traits (Ferris Katas). PLOS 1 20(5): E0324055; doi: 10.1371/journal.pone.0324055
This article is based on an original release by Kyoto University.
Paleontologists have discovered a new genus and species of the small Lamboosaurin hadrosaur dinosaur from two fossilized jaws unearthed in Morocco.
Artist Reconstruction of Tareta Tareta. Image credit: Connor Ashbridge.
Tareta Tareta thrived in what is now Morocco during the late Cretaceous period, approximately 66 million years ago.
“The Cretaceous era marked the later stages of the breakup of the supercontinent Pangaea and featured elevated eustatic sea levels,” stated Bass University paleontologist Nicholas Longrich, along with colleagues from Spain, France, and Morocco.
“Consequently, the continents became fragmented, resulting in a series of isolated island continents, which led to the evolution of distinct dinosaur faunas in various regions of the world.”
“Asia and North America were primarily inhabited by Ornisicchians of Hadrosaurid and Serratopsia, while Tyrannosaurus theropods were the apex predators.”
“In the Southern Hemisphere, titanosaurs were the leading herbivores, and Abelisaurus theropods were the top theropods.”
“Although geographic isolation played a significant role in shaping biogeographic patterns, recent findings emphasize that dispersal was also crucial, especially towards the end of the Cretaceous.”
The two related jaws of Tareta Tareta were found in Maastrichtian phosphate deposits at the top of Morocco.
“The phosphates in the Ouradubdoon Basin, situated in central Morocco, are composed of a mix of phosphate sand, marshes, and limestone in a shallow marine setting where the North Atlantic Ocean extended inland to cover much of Morocco,” the paleontologist explained.
“These phosphates date back to the Maastrichtian era (approximately 720,000 – 66 million years ago).”
Lambeosaurin dinosaurs were numerous in Morocco, with at least three species coexisting. Image credit: Longrich et al., doi: 10.1016/j.gr.2025.05.006.
Tareta Tareta is classified under the Lambeosaurine tribe Arensaurini, marking the total count of Arenasaurulin species identified in Moroccan phosphates at three.
“This first hadrosaurus discovery from Maastrichtian phosphate in Morocco, Ajinavia Odysseus, despite being isolated by the ocean, indicates hadrosaurus dispersion across Africa during the late Cretaceous,” noted the researchers.
“The close relationship of Ajinavia within Arenysaurini, known solely from Armorica, suggests that this clade was dispersed from southern Europe.”
“Following that, the second Arenysaurin, Mincaria Bata, was reported from the same period.”
“The jaw and tooth structure of Mincaria Bata differs significantly from that of Ajinavia, indicating a distinct niche specialization.”
“A related upper jaw of a small duck-like dinosaur was recently identified alongside phosphates.”
“Interestingly, neither of these specimens can be connected to Ajinavia or Mincaria. Instead, they signify the third distinct genus and species.”
“The notable variation observed in the jaws and teeth of arenasaurins in Africa points towards adaptive radiation driven by dispersal. Lamboosaurins seem to have rapidly diversified to exploit a new niche after migrating from Europe to North Africa,” they concluded.
“This African radiation aligns with the decline of Lamboosaurins in North America, underscoring the highly localized nature of dinosaur evolution.”
The team’s paper has been published in the journal Gondwana’s Study.
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Nicholas R. Longrich et al. A new hadrosaurus from the late Maastrichtian phosphate in Morocco provides insights into radiation in African Lambeosaurin. Gondwana’s Study, published online on May 28, 2025. doi: 10.1016/j.gr.2025.05.006
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Satellite perspective of coral reefs in New Caledonia
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The decline of coral reefs might come with unexpected advantages. Research suggests that this deterioration allows the oceans to absorb up to 5% more carbon dioxide by 2100, which may decelerate the buildup of this greenhouse gas in the atmosphere.
“If your primary concern is the CO2 concentration in the atmosphere, this could be viewed as a beneficial effect,” states Lester Kwiatkowski from Sorbonne University in Paris, France. However, he cautions that the loss of coral also leads to diminished biodiversity, jeopardizes fisheries, and heightens the vulnerability of coastal regions to rising sea levels.
The extent of global warming is heavily influenced by atmospheric CO2 levels. To date, land and oceans have collectively absorbed around half of the surplus CO2 we’ve emitted. Thus, elements that affect these so-called land or marine carbon sinks can significantly influence future climate scenarios.
Corals are often believed to sequester CO2 from seawater while they develop their calcium carbonate structures. In reality, this process—known as calcification—actually releases CO2 as a net byproduct.
“Corals typically take in inorganic carbon from the ocean in forms like carbonate and bicarbonate ions, converting them into calcium carbonate, which results in CO2 being expelled back into seawater.”
This suggests that if the growth of coral reefs slows or halts, there will be a reduction in CO2 emissions from these reefs, thereby allowing the ocean to absorb more of this greenhouse gas from the atmosphere—a factor currently absent from climate models.
Current studies indicate that coral reef calcification has already declined due to rising ocean temperatures, leading to extensive coral bleaching. Additionally, increased CO2 levels have caused ocean acidification, which complicates the formation of carbonate structures and can even trigger dissolution.
Kwiatkowski and his research team have published estimates detailing how corals are susceptible to warming and ocean acidification. They utilized computer models to project how these changes could affect marine carbon sinks under various emission scenarios. Their findings indicate that by 2100, the ocean may sequester an additional 1-5% more carbon, which could escalate to up to 13% by 2300.
This prediction may be conservative, as Kwiatkowski notes it overlooks additional factors contributing to coral reef degradation, such as overfishing and the spread of coral diseases.
Conversely, the research assumes that corals lack the capacity to adapt or acclimate. Chris Ju judge from the University of Hawaii at Manoa, who was not part of this study, remarks on this perspective.
“If we encounter the worst-case or medium-case outcomes outlined in this study, it portends significant destruction of coral reefs globally,” says Ju judge. “I believe the authors could arrive at different conclusions by considering potential adaptability in corals and other reef organisms under moderate levels of climate change.”
If Kwiatkowski’s team’s projections hold true, the amount of CO2 that leads to a certain degree of warming—the so-called carbon budget—may actually be larger than current estimates.
“Even if we’re facing dire outcomes, it’s critical to refine our understanding of the carbon budget to ensure its accuracy,” asserts Kwiatkowski.
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Dogs treated for fleas release chemicals into the water that kill insects when they swim
natalya_maisheva/shutter stock
Researchers advise against using spot-on flea and tick treatments if your dog has access to any water bodies.
Studies indicate that dogs submerged in water can release harmful levels of active ingredients into aquatic ecosystems, affecting wildlife and animals that consume them, including birds, for up to 28 days post-treatment.
“If your dog frequently swims, it’s best to avoid spot-on treatments,” says Rosemary Perkins from the University of Sussex, UK.
When spot-on treatments were introduced, it was mistakenly believed they posed no threat to the environment. It wasn’t until 2011 that a European Medicines Agency paper suggested protecting animals from water for 48 hours, yet Perkins notes that there was no substantial evidence backing this guideline. “It seems to be just a finger-in-the-air estimate,” she says.
Her concern grew after detecting fipronil, a pesticide used in these treatments, in a UK river. “We noted alarmingly high concentrations,” Perkins recalls.
Her team administered spot-on treatments containing either fipronil or neonicotinoids like imidacloprid to 25 and 24 dogs, respectively. After 5, 14, or 28 days, dogs were immersed up to their shoulders in a plastic tub for 5 minutes to measure pesticide levels in the water.
The findings revealed that even after 28 days, a single large dog’s chemical residue could exceed safe levels in 100 cubic meters of water—similar to the volume of a small pond. Regular swimming by treated dogs can further escalate contamination in larger bodies of water, warns Perkins.
She advocates for regulatory changes globally but fears that such adjustments may require significant time. In the meantime, dog owners should limit spot-on treatments to necessary occasions and keep their pets away from water for at least a month following treatment. “The key takeaway is that if your dog swims during this period, there are associated risks,” she emphasizes.
Currently, alternatives exist in the form of oral tablets, but Perkins remains uncertain of their environmental impact, noting that the active ingredients can persist in feces and contaminate soil. “We still lack clarity on their effects.”
Global warming is increasing the frequency and severity of wildfires
Noah Burger/Associated Press/Alamy
Recent data indicates that global temperatures are 6% higher than earlier estimates, meaning our planet is experiencing more warming than previously thought.
This trend puts us at risk of surpassing the Paris Agreement’s temperature threshold of keeping global warming below 1.5°C by as early as 2028, rather than the anticipated timeframe of 2030-2035. This is a frequent topic among scientists.
2024 marked the first calendar year where global average temperatures exceeded 1.5°C, following unprecedented warmth that caught climate experts off guard. Although this alone does not breach the Paris Agreement target, it raises concerns over a sustained temperature rise occurring faster than anticipated.
To assess our progress, Gottfried Kirchengast and Moritz Pichler from the University of Graz in Austria utilized the global temperature dataset to revise estimates of global average surface temperature (GMST) from 1850 to 2024. GMST is crucial in measuring global warming, as per the Intergovernmental Panel on Climate Change (IPCC).
The duo also devised a new method for converting GMST, which combines sea surface temperatures and air temperatures, into a single surface air temperature (GSAT).
“Our benchmark records maximize traditional temperature datasets and yield this new enhancement,” Kirchengast notes. This refines the range of uncertainty and demonstrates that global warming is slightly accelerating compared to prior methods, indicating an approach toward the critical 1.5°C mark.
Kirchengast emphasizes that this refined GSAT record is vital for evaluating global efforts toward the Paris Agreement’s objectives. The goal was to establish “a unified reference dataset for global warming in relation to pre-industrial levels,” he elaborates.
Under the Paris Agreement of 2015, nations collectively pledged to limit global warming to well below 2°C above pre-industrial levels while striving to restrict the temperature increase to 1.5°C.
These objectives are typically assessed against 20-year average temperatures, yet researchers disagree on the optimal calculations. Rather than relying solely on historical observations, we recommend using rolling averages derived from a mix of observational data and forecasts due to the increased number of scientists valuing a 10-year delay in evaluating non-compliance with any given target.
Kirchengast and Pichler propose employing novel benchmark GSAT records along with predictive climate models to provide real-time global warming metrics in relation to progress toward Paris targets. Their findings indicate that current warming levels have surpassed 1.39°C compared to pre-industrial benchmarks.
However, Duochan from the University of Southampton in the UK argues that GSAT records are not the best metric for determining the rate of global warming. “The GSAT is not the primary metric utilized in IPCC discussions or most climate target evaluations,” he remarks.
On the other hand, GMST continues to correlate with various changes in the climate system, such as sea level rise and alterations in precipitation, he notes. “For rigorous accountability, GMST remains a highly effective metric,” he argues.
Andrew Jarvis from Lancaster University in the UK emphasizes the urgent need for the scientific community to reach a consensus on a standardized method for measuring progress toward Paris objectives. “The diverse range of estimates is actually complicating policy assessments,” he contends.
The early season heatwaves scorched much of the West, resulting in dangerously high temperatures and prompting extreme heat warnings lasting from Friday through Saturday. Southern Nevada saw widespread triple-digit highs, with Death Valley expected to surpass 115 degrees.
Weeks ahead of the official start of summer, we intensified the union message. The organization’s signage campaign aims to address the far-reaching effects of Doge layoffs and budget cuts on the nation’s beloved national parks. In the Southwest, this translates to zero tolerance for extreme heat, according to Shaquille.
“We had to adapt our message to connect with people directly,” he stated.
Results from the National Park Service’s budget cuts are still pending, especially with the peak summer tourist season on the horizon.
Abigail Wine, deputy director of Death Valley National Park, mentioned that park staff are committed to ensuring public safety and raising awareness about the hazards of extreme heat. She urged visitors to take necessary precautions before heading to Death Valley, such as checking weather warnings, verifying closures, and packing adequate water, sunscreen, and other essentials.
“As always, the National Park Service is dedicated to providing visitors with an incredible, safe, and unforgettable experience at Death Valley National Park and throughout the country,” Wines informed NBC News in a statement.
The broader objective of achieving a more perfect union in the Billboard campaign is to spotlight Doge’s controversial actions and the significant cuts instituted by the Trump administration to federal agencies. Shaquille noted that the organization strategically leveraged the bipartisan support enjoyed by national parks to ignite discussion.
According to a 2024 Population Survey from Pew Research Center, the National Park Service ranks as the most favored federal agency, with a favorable rating of 76% among over 9,400 Americans surveyed.
“Many of the locations where we placed our signs are in areas assumed to lean Republican, where a significant number of people likely voted for Donald Trump. Even the Doge component resonates,” Shaquille explained. “But national parks serve as a perfect example of where the limits were overstepped.”
Askap J1832-0911 – Likely a magnetar or a highly magnetized white dwarf star – emits radio signals and X-ray pulses for 2 minutes every 44 minutes. Paper published in Nature.
A combination of radio, X-ray, and infrared radiation in the field of ASKAP J1832-0911. Image credit: Wang et al., doi: 10.1038/S41586-025-09077-W.
Askap J1832-0911 is situated roughly 15,000 light-years away from Earth in Scutum.
This star was identified by astronomers utilizing the Australian ASKAP Radio telescope.
It belongs to a category known as long-term radio transients, first detected in 2022, characterized by variations in radio wave intensity over several minutes.
This duration is thousands of times greater than the regular fluctuations observed in pulsars. It’s a neutron star that spins rapidly, emitting signals multiple times per second.
“Askap J1832-0911 follows a 44-minute cycle of radio wave intensity, placing it in the realm of long-term radio transients,” stated Dr. Ziteng Wang, an astronomer at Curtin University’s node at the International Centre for Radio Astronomical Research (ICRAR).
Using NASA’s Chandra X-Ray Observatory, researchers noted that ASKAP J1832 also exhibited regular variations in X-ray emissions every 44 minutes.
This marks the first discovery of an X-ray signal in long-term radio transients.
“Astronomers have observed countless celestial bodies through various telescopes and have never encountered anything behaving like this,” Dr. Wang remarked.
“It’s exhilarating to witness such new stellar phenomena.”
Through Chandra and the SKA Pathfinder, scientists found that Askap J1832-0911 experienced a significant reduction in both X-ray and radio wave signals over a six-month period.
Besides the long-term changes, the combination of 44-minute cycles in X-rays and radio waves differs from observations made in the Milky Way galaxy.
The authors are currently competing to determine whether Askap J1832-0911 truly represents long-term radio transients and if its unusual behavior can shed light on the origins of such objects.
Dr. Nanda Lea, an astronomer at the Institute of Space Sciences in Barcelona, Spain, commented:
“No exact match has been found so far, but some models fit better than others.”
It’s improbable that ASKAP J1832-0911 is simply a pulsar or neutron star drawn from a companion star, as its properties do not align with the typical signal strengths of these celestial objects.
Some characteristics might be attributed to neutron stars with exceptionally strong magnetic fields, known as magnetars, which are over 500,000 years old.
However, other aspects, such as its bright and variable radio emissions, make it challenging to categorize this as an aged magnetar.
In the sky, ASKAP J1832-0911 appears to be situated among debris from a supernova, which commonly contains neutron stars formed during such events.
Nevertheless, the team concluded that this proximity is likely coincidental and that the two entities are not associated with one another, suggesting that neither may host neutron stars.
They deduced that while isolated white dwarfs don’t account for the data, white dwarfs with companion stars might.
But such a scenario would necessitate the strongest known magnetic fields in white dwarfs within our galaxy.
“We continue to seek clues about this object and look for similar entities,” said Dr. Tong Bao, an astronomer at the Osservatorio Astronomico in Italy’s National Institute of Astronomy (INAF).
“Discovering mysteries like this is not frustrating; rather, it’s what makes science thrilling!”
____
Z. Wang et al. Detection of X-ray radiation from bright long-term radio transients. Nature Published online on May 28, 2025. doi:10.1038/s41586-025-09077-W
Polar ecosystems are bolstered and enriched by birds that nest there seasonally, serving as keystone members of these ecosystems. Despite the significant ecological role of polar birds, the origins of high-center nests remain unclear due to limited fossil evidence. A recent study conducted by paleontologists explored an extensive collection of bird fossils from the late Cretaceous Purine Cream Formation in Alaska.
Illustration of Cretaceous birds alongside other dinosaurs from the same period. Image credit: Gabriel Ugueto.
“Birds have existed for 150 million years,” stated Lauren Wilson, a doctoral candidate at Princeton University.
“For a significant portion of that time, they constructed nests in the Arctic.”
In their research, Wilson and colleagues studied the bones and teeth of fossilized birds from the Alaska Prune Creek Formation, dating back 73 million years.
They identified various bird types, including land birds, seagull-like birds, and diving birds that bear similarities to some modern ducks and geese, all of which were nesting in the Arctic while dinosaurs roamed the same territory.
Before this research, the earliest known evidence of breeding birds in the Arctic or Antarctic was approximately 47 million years ago, following the asteroid impact that wiped out 75% of Earth’s species.
“This will extend the timeline by 25-30 million years for records of birds breeding in the polar regions,” remarked Dr. Pat Druckenmiller, director of the University of Alaska Museum.
“The Arctic is recognized as a modern nursery for birds.”
“Finding bird bones from the Cretaceous period is exceptionally rare,” Wilson noted.
“Discovering baby bird bones is almost unheard of, making these fossils particularly significant.”
“We conducted extensive mapping of Alaska for fossil birds—it wasn’t on anyone’s radar,” added Dr. Druckenmiller.
“Now, we are one of the premier locations in the country for bird fossils from the dinosaur age.”
“Given the richness of this information, these small bones and teeth offer exceptional insights into the fauna from that era.”
It remains uncertain whether these newly discovered specimens are the earliest recognized members of Neornithes, a category that encompasses all modern birds.
Some of the newly unearthed bones exhibit skeletal characteristics exclusive to this group. Additionally, like contemporary birds, some did not possess true teeth.
“If they belong to a modern bird lineage, they would represent the oldest fossils ever found,” explained Dr. Druckenmiller.
“Currently, the oldest such fossils are about 69 million years old.”
“However, establishing that requires the discovery of a partial or complete skeleton.”
Survey results I will be featured this week in the journal Science.
____
Lauren N. Wilson et al. 2025. Evidence of bird nesting in the Arctic dates back to the Cretaceous period. Science 388 (6750): 974-978; doi: 10.1126/science.adt5189
California House Democrats have urged the National Weather Service (NWS) to reinstate terminated employees and initiate the hiring of new forecasters, following the suspension of 24-hour operations for weather predictions in Sacramento and Hanford.
In a letter addressed to deputy administrators of the National Oceanic and Atmospheric Administration (NOAA), Howard Luttonick and Commerce Secretary Laura Grimm, 23 Congressional Democrats criticized recent reductions in weather services, warning that it signals the onset of a public safety crisis with serious implications. The Weather Services division falls under NOAA, which is managed by the Department of Commerce.
“We demand the immediate reinstatement of all workers who have been terminated in these offices, the lifting of the federal employment freeze at NWS, and the establishment of adequate staffing at the Sacramento and Hanford weather forecasting offices to maintain their 24/7 operations,” the council members stated.
Since January, over 500 staff members from the Weather Bureau have departed the agency due to widespread layoffs initiated by the Trump administration, targeting many probationary positions. As a result, approximately 43% of the nation’s 122 weather offices are operating with staffing levels exceeding 20%. Independent meteorologists caution that these cuts may lead to delays in weather predictions and warnings, raising public safety concerns that have pressured the administration.
Legislators from California noted that the weather forecasting offices in Hanford and Sacramento were particularly hard hit, compromising their ability to provide continuous staffing around the clock.
“Currently, the Sacramento office has seven vacant meteorologist positions out of 16, while the Hanford office is short eight out of 13. Both offices are functioning at half their capacity as they approach the peak of wildfire season,” the letter states. “If the NWS Weather Forecast Offices in Sacramento and Hanford cannot monitor overnight conditions across the entire Central Valley, it jeopardizes the safety of our residents.”
The Weather Bureau typically provides meteorologists to assist firefighters during the wildfire season.
“This is an imprudent and unwarranted risk that does not serve the American public,” the letter declared. “Halving the staffing levels in offices responsible for forecasting wildfires, atmospheric rivers, and natural disasters endangers lives and undermines government efficiency.”
NOAA communications director Kim Doster reaffirmed that the NWS is dedicated to prioritizing public safety.
“The National Weather Service continues to fulfill its core mission amidst recent restructuring and is taking measures to prioritize critical research and services necessary for keeping American citizens safe and informed,” Doster stated in an email.
The Hanford office of the Weather Bureau is situated in the San Joaquin Valley, not far from the site of the longstanding Lake Tulare reconstruction in 2023.
The Central Valley region is responsible for producing 40% of the country’s fruits and nuts, according to the US Geological Survey. Farmers in the Central Valley depend on accurate forecasts for making informed decisions about planting, irrigation, and harvesting.
In the meantime, Sacramento forecasters are predicting extreme heat and a heightened risk of wildfires this weekend, indicating an early onset of the wildfire season.
Representative Jim Costa, who represents parts of the San Joaquin Valley and has received forecasts from the Hanford office, facilitated a letter to NOAA. Other notable signatories include Councillors Nancy Pelosi, Eric Swalwell, and Doris Matsui, amongst the 22 others.
Pressure has been mounting for months, calling for reductions in weather services.
One external meteorologist reported that weather balloon launches have been curtailed to about 12 understaffed offices, noting that missed balloon releases hinder better understanding of tornado risks during thunderstorm events near Omaha, Nebraska.
Following this incident, Nebraska Representative Mike Flood intervened with the administration and obtained additional forecasters temporarily assigned to an office near Omaha.
Earlier this month, five former directors of the Weather Bureau cautioned that further staffing cuts could lead to unnecessary fatalities.
“Our greatest fear is that the weather offices are severely understaffed, resulting in unnecessary loss of life,” wrote a former superintendent who served from 1988 to 2022.
NOAA has attempted to address the staffing shortage by temporarily reallocating personnel to fill gaps in the workforce and exploring more permanent reallocations within the agency.
Approximately two weeks ago, NOAA considered transferring 76 meteorologists and a total of 155 staff members to play a vital role.
“I must set some rules for how time travel operates”… Kaliane Bradley
DreamcatcherDiana/Shutterstock
The awkward reality about time travel in my novels; Time Saving started as a mere device to thrust Victorian naval officers into the modern era, allowing them to grapple with washing machines and athletes. The initial concept was: “What if your favorite polar explorer resides in your home?”—he had to arrive in one of two ways. I could either freeze Graham Gore, the icebound captain, for 200 years in Arctic stasis or find a route to drag him into semi-obscurity in London. Of the two options, the latter required significantly less effort.
Even the early drafts of the book lacked a serious take on time travel consequences. The published work shows a government agency investigating historical “foreigners” to determine if time travel warps their body and mind. Initially, the narrative opens in medias res, depicting a baffled Gore asking the narrator how a refrigerator functions. The sequence of action and reaction was far from a priority for me; I simply aimed to amuse my friends.
However, as I continued writing, I realized the necessity of establishing guidelines for time travel mechanics, since comedy benefits from a defined universe. (It’s no joke—thrillers need stakes. A lack of tension is neither exciting nor engaging.) The primary rule: foreigners cannot return (or so the ministry claims). The ministry also doesn’t have the authority to leap forward (likewise). Expatriates have one-way tickets only. This framework was essential for the humor to resonate, explaining why dashing Gore and his reluctant companions were forced to cohabitate. If he could always return home, what significance would their increasingly complicated coexistence hold?
Time Saving is fundamentally a book about time travel, where such occurrences are rare. Across more than 350 pages, it happens only once. I often describe it as a narrative about people navigating bureaucracy in various settings. It’s astounding that readers embraced it.
I had to reflect on the implications for Gore and the other foreigners while adhering to this rule during writing. Moreover, even if they did travel, it would lead to their demise. To preserve the timeline, the ministry selects individuals who are destined to die, ensuring that their absence won’t alter history. Naturally, these foreigners shy away from returning to plague-ridden London or the Battle of the Somme or John Franklin’s ill-fated 1845 Arctic expedition. Who would want to revisit places where they met their end? Yet, they are also reluctant to feel like outsiders in a foreign land. Thus, I portrayed them as refugees.
At this point, I began to take my novels more earnestly. My obsession with the real figure of Graham Gore deepened, as I sought to imagine his life, thoughts, and emotions. I delved into periodicals and literature from his era, attempting to understand how he perceived the world—a world that I now see through different lenses based on location. Increasingly, I endeavored to capture the emotional and psychological essence of being a refugee in a system that treats you as grateful, obedient, and useful.
Concurrently, I sought to comprehend the ministry itself. I began crafting this book amid the fall of 2021, inspired by a decade of the UK’s hostile environment policy. Did the government genuinely believe that giving the means for time travel would result in a welcoming of asylum seekers? This theme echoes throughout the book, prompting readers to consider whether it’s a form of time travel.
Thus, my book is not a scientific exploration of time travel’s mechanics, but rather a narrative journey—a story about traveling through time. I genuinely believe that all fiction embodies time travel; it traverses through distinct timelines, a cherished gift of preserved moments we can revisit, stepping back into a past that hasn’t yet happened.
Kaliane Bradley’s protagonist receives surprising news at the Ministry of Time
andrey_l/shutterstock
The interviewer mentioned my name before interrupting my thoughts. I never say my name, not even internally. She got it right, but usually, it’s not the case.
“I’m Adela,” she introduced herself, sporting eye patches and blonde hair reminiscent of hay. “I’m the Vice President.”
“Of…?”
“I hold a position.”
This was my sixth interview. The role was an internal posting, involving Gausch’s use of top secret stamps for documents with salary bands, classified as “security clearance required.” Since I had never reached this security level before, I was puzzled as to why no one explained the job to me. I was thrilled, as my current salary was about to triple. I had to maintain impeccable grades that necessitated my role in emergency response, protecting vulnerable populations, all while managing my home office in the UK. I anticipated working closely with refugees, particularly those with high profit status and specific needs, without realizing the extent of their operations. I assumed they were primarily politically significant exiles from Russia or China.
Adela, the vice-director, held knowledge I could only imagine.
“Your mother was a refugee,” she initiated, a common opening for job interviews.
“Yes, ma’am.”
“From Cambodia,” she continued.
“Yes, ma’am.” I had faced this question repeatedly during the interview process. Typically, people don’t originate from Cambodia, so I posed my answer hopefully, wishing to adjust their perceptions. You don’t Look Cambodian, an earlier interviewer had remarked candidly, inferring I appeared bright like a pilot light under the gaze of camera monitors. I often received such comments, which implied: You resemble someone from a more Mediterranean background — perhaps Spanish — and you don’t reflect the weight of genocide.
There was no further inquiry regarding adaptation to genocide. (Family still there) Understand that? Have you ever traveled there? Sympathetic smile? A beautiful country yet shadowed by sorrow. When I visited I could see it in their eyes. They were exceptionally welcoming… Adela nodded. She requested an unusual fourth option and pondered if it was appropriate to say “dirty country.”
“She wouldn’t label herself a refugee, nor even a former refugee,” I mentioned. “It’s peculiar to hear people use that term.”
“The individuals you assist are unlikely to prefer such terms either. We prefer ‘foreigners.’ In response to your query, I am the deputy director of the expatriates.”
“And they are foreigners from…?”
“History.”
“Excuse me?”
Adela shrugged. “We have time travel,” she stated, as casually as one might explain the coffee machine. “Welcome to the Ministry.”
This excerpt is shared with permission from Kaliane Bradley’s Time Saving, Published by Scepter. This is the latest selection for the New Scientist Book Club. Join us and read along here.
Book Club shares their thoughts on Larry Niven’s Ringworld
Eugene Powers/Alamy
Experiencing the vibrant world created by Michel Nieva in his dystopian vision was something special—even more so while exploring Larry Niven’s classic science fiction work, Ringworld. Initially published in 1970, it reflects the hallmark traits of that era’s science fiction writing. While not a negative experience, it certainly offers a jarring shift for the New Scientist Book Club. Revisiting Ringworld as an adult from my teenage years prompted me to reflect on how it held up over time.
It’s important to note that much of what I cherished from Ringworld remains intact. The novel still evokes a sense of wonder, showcasing the depth of imagination, the expansive scale of its universe, and the cosmic distances it portrays. I fondly remember our protagonist, Louis Wu, at the brink of a distant planet, captivated by the Longfall River cascading into the highest waterfall in known space. His gaze followed it through the foggy mist, enthralled by the allure of the unknown.
Its grand scope is a significant aspect of why science fiction resonates with me. What insights can one gain, and what remains uncharted? The haunting imagery of razor-sharp sunflowers on Ringworld—the crew’s exploration of its vastness—created indelible impressions. Ringworld encapsulates that sense of wonder perfectly with lines like, “Men can lose their souls among the white stars… They call it A distant look. It’s perilous.”
Furthermore, I appreciated Niven’s ability to weave historical breadcrumbs into the narrative, referring to influential figures like Freeman Dyson, who inspired the concept of the Dyson sphere, as “one of the ancient natural philosophers, predating even the atomic age.” Such details are enjoyable nuggets to uncover. Additionally, Niven’s portrayal of aliens—from speakers to creatures—brilliantly evokes their essence through clever naming and design, particularly the inspiring vision of the speaker as a colossal version of our domestic cat.
As I previously mentioned, the prose does feel distinctly rooted in its time—somehow dated—with sexist undertones amidst the engaging scientific elements and intricate mathematics. The characters tend to lack depth; Louis Wu, for instance, can be quite off-putting, while Teela, our sole female character, deserves more agency. The narrative often drifts rather than following a tightly plotted journey, with characters simply moving from one event to the next without clear direction.
Intense discussions have emerged within our Facebook group, with many sharing similar sentiments. “I found enjoyment, yet felt distracted by the slow progression and the scientific facets overshadowed by the pervasive sexism,” remarked Eliza Rose, who likened it to early spy films where attractive women exist merely as accessories to the male protagonists.
Alain Pellett expressed distinct discomfort regarding Louis Wu’s treatment of women, noting that his interactions come off as unsettlingly superficial.
Gosia Furmanik, who grew up during Niven’s era, pointed out the challenge faced by non-male authors in finding supportive literary spaces. She stated, “Returning to science fiction after discovering works by authors beyond this genre’s prevalent pitfalls has been crucial,” reflecting on Ringworld in her review.
Undoubtedly, the arc of Teela’s character drew significant criticism from many readers. “I was frustrated with the conclusion of Teela’s storyline, which suggested women can only achieve significance through male figures,” wrote Samatha Lane.
Samantha also addressed a pivotal critique regarding the notion that “human males stand as the most astute beings in the universe.” This hubris roots itself in traditional humanism, positioning humanity at the center of all. This echoes the ongoing narrative surrounding our historical conquests in space—just a year after landing on the moon.
On a positive note, Niall Leighton spoke highly of the sheer scale of the novel, noting it hasn’t aged as poorly as some science fiction from that time.
Some readers appreciated Niven’s rigorous incorporation of mathematics into the narrative, stating it added an enjoyable layer to the experience. Linda Jones noted, “It has certainly enriched my enjoyment,” whereas Darren Rumbold found Klemperer Rosettes “particularly appealing.” However, not all shared this enthusiasm, as Phil Gersky commented, “I was eager to delve into this classic sci-fi novel. Unfortunately, the technobabble often marred my experience.”
Ultimately, I believe our Book Club’s exploration of this science fiction classic serves as a fascinating exercise capable of resonating with modern readers. I’m contemplating a journey into another classic soon, with suggestions pouring in from members eager to explore works by Ursula K. Le Guin, NK Jemisin, and Joan D. Vinge.
Next, we’re diving into a more contemporary read: Karian Bradley’s bestselling time travel novel, Time Saving. Yes, it features a female lead, and indeed, it passes the Bechdel Test. You can visit Karian’s site to read more about her novel and explore the intriguing opener. Join us for the discussion and share your thoughts over at our Facebook page.
Visualize your body as a large sugar container. At birth, this container is empty. As the years progress, you consume sugar and refined carbohydrates, gradually filling the container. Each time you eat again, if the container is already full, the sugar spills over the edges.
This scenario mirrors what happens in your body. When you consume sugar, your body releases the hormone insulin, allowing sugar to enter the cells for energy. If you don’t adequately burn off this sugar, your cells become saturated over time, and they can no longer effectively utilize it.
Upon consuming sugar again, there is so much present that insulin cannot transport any more, resulting in excess sugar entering the bloodstream. This sugar travels in the form of glucose, and an overload – known as hyperglycemia – is a primary indicator of type 2 diabetes.
When excess glucose exists in the bloodstream, insulin’s ability to facilitate the transfer of sugar to the cells diminishes. Many refer to this as insulin resistance, but the root issue is not with insulin itself; it’s that the cells are overflowing with glucose.
High blood sugar represents just one facet of the problem. Not only is there an excess of glucose in the blood, but there’s also too much in all the cells. Type 2 diabetes manifests as an overflow of glucose throughout the body.
In response to this excess, the body produces more insulin to combat resistance, pushing more glucose into the already overcrowded cells to maintain healthy blood sugar levels.
This approach is temporary, as it fails to address the root cause: the surplus sugar. Continuously transferring excess sugar from the bloodstream to the cells only worsens insulin resistance. Eventually, regardless of increased insulin levels, the body cannot force more glucose into the cells.
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So what happens if you don’t eliminate excess glucose? Initially, the body increases insulin production in an effort to drive more glucose into the cells, perpetuating a cycle of resistance.
Glycemic spikes occur when insulin levels cannot keep up with growing tolerance; that’s typically when a diagnosis of type 2 diabetes is made.
Doctors may recommend medications like insulin injections or the drug metformin, but these just continuously clear glucose from the blood, redirecting it into other organs like the kidneys, nerves, eyes, and heart, creating further issues without resolving the underlying problem.
Remember the container filled with sugar? Insulin has moved sugar from the blood into a body that cannot handle it. So once you eat again, more sugar spills into the bloodstream, prompting insulin to push it back into the body.
The more glucose your body accepts, the more insulin it needs to combat this resistance. Yet, this insulin will lead to increased resistance as cells expand.
Eventually, if your body surpasses its natural insulin production, you may need medication. Initially, one drug is sufficient, but this can escalate to multiple drugs at higher doses.
The concerning truth is: if you require increasingly larger doses of medication to maintain stable blood sugar, your diabetes is actually worsening.
Type 2 diabetes is reversible and preventable…without medications
Recognizing that type 2 diabetes stems from excess sugar in the body points to the solution: eliminate the sugar. Don’t just hide it—remove it altogether. There are essentially two ways to achieve this.
Reduce sugar intake.
Burn off the remaining sugar.
That’s all there is to it. The best part? It’s natural and completely free—no medications, no surgeries, and no costs involved.
Step 1: Reduce sugar
The initial step is to completely eliminate all sugar and refined carbohydrates from your diet. Added sugars lack nutritional value and can be safely omitted. Complex carbohydrates, which are essentially long chains of sugar, and highly refined carbs like wheat flour, digest rapidly into glucose.
The best approach is to minimize or eliminate bread and pasta made from white rice and potatoes, as well as those crafted from white flour.
It’s important to maintain a moderate, rather than high, protein intake. Once ingested, dietary proteins such as meat break down into amino acids. While protein is essential for health, excess amino acids cannot be stored in the body, leading the liver to convert them into glucose. Thus, consuming too much protein can also increase sugar levels, making it advisable to avoid highly processed protein sources like protein shakes, bars, and powders.
What about dietary fats? Natural fats found in avocados, nuts, and olive oil—key components of the Mediterranean diet—are known to minimally affect blood sugar or insulin and have beneficial effects on heart disease and diabetes. Eggs and butter also serve as excellent sources of natural fats.
Dietary cholesterol associated with these foods has proven harmless to human health. Consuming nutritional fats doesn’t contribute to type 2 diabetes or heart disease; rather, it fosters feelings of fullness without introducing sugar into the body.
To limit sugar intake, focus on consuming whole, natural foods. Aim for a diet low in refined carbohydrates, moderate in protein, and high in natural fats.
Step 2: Burn remaining sugar
Exercise—both tolerance training and aerobic activity—can positively impact type 2 diabetes, although dietary adjustments are typically more effective. Fasting is one of the easiest and most reliable methods for burning sugar in the body.
Fasting is essentially the absence of eating. When you eat, your body stores the energy from food. In contrast, when you fast, your body needs to burn stored energy, with glucose being the most accessible energy source. Longer fasting durations can burn away stored sugar.
This may sound drastic, but fasting is the oldest known dietary practice and has been embraced throughout human history without issues. Those on prescription medications should consult their healthcare providers before making changes.
The bottom line? If you don’t eat, your blood sugar will drop. If you refrain from eating, you will lose weight. So, what’s the problem? Largely, it’s unfounded.
A popular fasting strategy includes fasting for 24 hours, 2-3 times a week, or doing 16-hour fasts 5-6 times weekly. The key to reversing type 2 diabetes lies within our reach.
What is essential is an open mind and the courage to challenge conventional beliefs and paradigms.
read more:
This text has been extracted from Diabetes Code: Prevent and Reverse Type 2 Diabetes Naturally by Dr. Jason Fung—Out Now (£14.99, Greystone Books).
The Atlantic hurricane season has yet to commence, but forecasters are already raising concerns. Indeed, the 2025 season, which officially spans from June 1st to November 30th, is anticipated to be remarkably busy.
As per the National Oceanic and Atmospheric Administration (NOAA), the likelihood of below-average activity stands at 60%. They foresee up to 19 named storms, with as many as 10 hurricanes and between 3 to 5 major hurricanes (Category 3 or higher).
Meanwhile, private forecasting firm Accuweather has a similar outlook, but adds another concerning prediction: up to six storms could directly impact the U.S. coastline.
This news comes on the heels of the destruction wrought by Hurricanes Helen and Milton in 2024. “Overall, it looks like it will be an even busier year,” said Alex Dasilva, Accuweather’s lead hurricane expert, to BBC Science Focus.
So, what gives scientists such confidence? While accurately predicting the timing and location of a storm remains elusive, there is increasing clarity regarding the broader factors that influence each season. This year, numerous climate indicators are aligning unfavorably.
The Atlantic is Storing Energy – A Lot of It
Hurricanes derive their power from warm ocean waters, and this year, the Atlantic is exceptionally heated.
“Sea surface temperatures are again significantly above average,” explains Dasilva. While 2025 may not match the record warmth of 2023 and 2024, conditions across most of the Atlantic Basin remain notably high.
However, it’s not just about surface temperatures; the ocean’s heat content plays a crucial role in driving the most formidable storms. This metric reflects how deeply the warm water extends beneath the surface.
“It’s truly impressive,” notes Dasilva. “When you’re at the surface, the water feels pleasantly warm. Now, imagine it extending hundreds of meters below in a region like the Western Caribbean, where mid-season temperatures can reach 80°F [27°C].”
The depth matters. Hot water serves as high-octane fuel for hurricanes; the deeper it extends, the more energy available for storms. This explains the “rapid strengthening” observed in many recent hurricanes, which can intensify dramatically within just a few hours.
“When you observe a storm rapidly intensifying, it’s something that explodes—because it encounters the highest oceanic heat, particularly off the Gulf Coast, Western Caribbean, or the southeast coast,” Dasilva adds.
Scientists now recognize that climate-driven ocean heat is on the rise yearly. As our planet warms, much of the additional heat gets absorbed into the ocean, creating a reservoir of deep energy for storms to utilize.
This doesn’t automatically mean more hurricanes overall, but those that do form are more likely to rapidly gain strength and achieve greater intensity.
Read more:
Changing Pacific Patterns Could Elevate Season End
The Pacific will serve as the puppeteer while the Atlantic supplies the fuel.
Key players include El Niño and the Southern Oscillation (ENSO)—the natural cycle of warming and cooling in the tropical Pacific Ocean. This cycle has a substantial influence on hurricane activity in the Atlantic.
A comprehensive book could be written about ENSO, so let’s summarize it briefly. During El Niño, warm waters from the tropical Pacific migrate eastward toward the Americas. During La Niña, the reverse holds true, with warm waters moving westward toward Asia and cooler waters prevailing near the Americas.
These shifts not only affect the Pacific but also change wind patterns worldwide, including in the Atlantic, either facilitating or hindering hurricane development.
At present, the Pacific is in the ENSO neutral phase, indicating that the warm waters are balanced. However, this isn’t necessarily good news.
“Research indicates that La Niña typically produces more storms, but neutral years are nearly as active,” says Dasilva. “The only time we’ve seen a significant reduction in storms is during El Niño.”
Why is this the case? During El Niño, robust upper winds from the Pacific often inhibit storms as they form in the Atlantic. Conversely, during neutral or La Niña years, these winds lessen, enabling hurricanes to form and strengthen more easily.
Moreover, a return of La Niña conditions later this year could set the stage for a busier end to the season.
“There’s a possibility for La Niña to resurge later in the season,” Dasilva notes. “If that happens, the latter part of the season could see heightened activity, so it’s important to keep a close eye on developments.”
With recent seasons demonstrating a trend towards more frequent storms, this increased warmth and favorable atmospheric conditions are notable.
Storm Trajectories Depend on Who’s at the Helm
While ocean temperature and ENSO conditions are crucial players, they aren’t the only factors at play.
Features such as the Bermuda-Azores high-pressure system—dominant over the Central Atlantic—greatly influence the final destination of storms once they form.
“This high-pressure zone in the Atlantic deflects storms around it,” Dasilva explains. “Most storms ultimately curve away towards the ocean and head toward Europe, but if this high pressure is particularly strong, it can stretch and push storms westward.”
However, the Bermuda-Azores system is dynamic and can shift throughout the season, making it challenging to accurately predict storm trajectories beyond a few days. “These dynamics can change rapidly, often hinging on timing,” Dasilva adds.
This season is also impacted by waters off West Africa.
Many of the most powerful Atlantic storms initiate as clusters of disturbed thunderstorms sweeping off the coasts of Africa as summer ends. In fact, around 85% of major hurricanes originate here.
However, this system is sensitive. Last year, unanticipated cooling off the West African coasts near the equator disrupted the jet stream, impeding the northward movement of storms and curtailing their development.
“Many believed the Atlantic was broken,” Dasilva said. The culprit was a pattern known as the Atlantic Niño, an obscure climate cycle that paradoxically has an opposing effect on hurricane activity compared to its namesake in the Pacific.
Dasilva anticipates a similar mid-summer slowdown again this year, but this doesn’t signify the season’s end.
The aftermath of a catastrophic flood caused by Hurricane Helen in North Carolina on September 28, 2024.
Inland Impacts
Another trend affecting the Atlantic hurricane season is the increasing influence of storms further inland.
A study published in Nature revealed that hurricanes making landfall have been slowing their rate of weakening over the past 50 years, with a 94% decrease in weakening rates. Essentially, this means that as storms travel inland, they often retain their strength, increasing the risk of damage far from coastal areas.
In 2024, Hurricane Helen struck Florida, triggering deadly floods in the southern Appalachian mountains. The storm was responsible for 94 fatalities and contributed to over 100 additional deaths. Furthermore, Hurricane Beryl spawned a tornado in western New York after making landfall in Texas.
“2024 was one of the most costly hurricane seasons on record, largely due to inland effects,” Dasilva states. “It’s critical for those living inland to monitor hurricane forecasts as closely as those living on the coast.”
Thus, whether you reside on the coast or inland, science signals a clear message: conditions are lining up for enhanced activity in 2025. Stay alert to forecasts.
About Our Experts
Alex Dasilva is a seasoned meteorologist and hurricane forecaster at Accuweather, specializing in long-range predictions and tropical weather. He currently serves as Accuweather’s lead hurricane predictor and frequently appears in broadcasts and live events to inform the media and the public about upcoming significant storm events.
Biological processes such as sleep, heart rate, and metabolism are regulated by the circadian clock found in nearly every cell in the human body. However, modern lifestyles challenge this natural timing mechanism in ways for which we are not well-suited. Factors like industrialization, shift work, artificial lighting, and smartphone usage significantly impact our sleep and circadian rhythms. A recent study from the University of Michigan reveals that our circadian rhythms continue to align with seasonal changes in sunlight. This result was published in the journal NPJ Digital Medicine.
Kim et al. We believe that substantial individual differences in shift work adaptation, which are vital for shift workers’ health, can be explained in part by the biological mechanisms of seasonal timing. Image credit: Sasin Tipchai.
“We may not want to admit it in today’s world, but humans are inherently seasonal,” stated Dr. Ruby Kim, the study’s lead author.
“The duration of daylight and the sunlight we receive significantly influence our physiology.”
“Our research demonstrates that the timing of biologically significant seasons plays a role in how individuals adapt to changes in their daily routines.”
“These findings could lead to new avenues for investigating and understanding seasonal affective disorders, a form of depression linked to seasonal variations.”
“It could also point to new areas of exploration regarding a range of health issues related to sleep schedules and alignment with circadian rhythms.”
“This work holds great promise for future discoveries, potentially impacting metabolic and cardiovascular health as well as mental health conditions such as mood disorders and anxiety.”
The study also indicated that humans possess a seasonal genetic component, which might explain the significant differences in how individuals are impacted by variations in daylight.
“Some individuals may adapt better, while others might fare much worse,” remarked Professor Daniel Foger, a senior author of the study.
Investigating this genetic component could help researchers and healthcare providers identify where an individual falls on the adaptation spectrum, although achieving this will require more time and effort.
For now, this study serves as an important first step in reshaping our understanding of human circadian rhythms.
“Many people tend to perceive their circadian rhythm as a singular entity,” explained Professor Foger.
“Our findings indicate that it’s not one clock, but rather two.”
“One clock tracks dawn, and the other tracks dusk. They communicate with each other.”
Researchers adjusted their studies of circadian rhythms according to seasonal sunlight by analyzing sleep data collected from thousands of participants using wearable health technology like Fitbits.
All participants were medical interns involved in a one-year internship as part of a healthcare study funded by the National Institutes of Health.
Interns are shift workers whose schedules frequently change, which also changes their sleep patterns.
Moreover, these schedules often run counter to the natural day-night cycle.
The observation that the circadian rhythm of this group demonstrated seasonal dependence is a strong indicator of how deeply ingrained this feature is in humans, which is unsurprising.
“It makes a lot of practical sense. Our brain physiology has been attuned to track dusk and dawn for millions of years,” stated Professor Foger.
“Then industrialization came along in an evolutionary blink, and we’re still trying to catch up.”
Participants in the healthcare study also provided saliva samples for DNA analysis, enabling researchers to include genetic factors in their evaluations.
Previous genetic studies have identified specific genes involved in how circadian clocks in various animals respond to seasonal changes.
Since humans share this gene, the authors could pinpoint a smaller group of interns with slight variations in their genetic makeup.
For this group, shift work was more disruptive due to the misalignment between seasonal circadian rhythms and their sleep schedules.
This leads to many questions, particularly regarding the health implications and how shift work affects different individuals.
However, these are questions researchers will seek to investigate further in the future.
____
R. Kim et al. 2025. Seasonal timing and individual differences in shift work adaptation. npj digits. Pharmaceuticals 8, 300; doi:10.1038/s41746-025-01678-z
Across the globe, people coexist with cats, engaging in various social behaviors with their furry companions. While olfaction is one of cats’ most crucial sensory abilities, its specific role in identifying humans remains unclear. A recent study conducted by researchers at Tokyo University of Agriculture examined how domestic cats use their sense of smell to differentiate between familiar and unfamiliar humans.
Miyairi et al. Ferris Catus’ behavioral response to human olfactory stimuli was explained. They suggest that cats use their sense of smell to recognize humans. Moreover, the olfactory exploration behaviors of cats are linked to their personality traits, indicating a lateralization in odor detection between the left and right nostrils. Image credits: Sci.news / makieni777 / rise-a-mui / alexas_fotos / dorothe / vaclav zavada / artem makarov / daga roszkowska / birgit / pasi mammela.
“Dogs (Canis Familiaris) and cats (Felis Catus) present unique social interactions,” said Dr. Yutaro Miyairi, the lead author of the study.
“Prior research has largely focused on how these animals bond with their owners.”
“For instance, dogs are adept at recognizing human emotional expressions through facial cues and vocal tones, demonstrating their ability to process social information from humans.”
“Cats, too, possess remarkable social cognitive skills that have piqued the interest of researchers.”
“However, studies on cat-human interactions have not progressed to the extent seen in canine research.”
In this study, the team aimed to determine whether cats can distinguish between familiar and unfamiliar individuals using olfactory cues alone.
The researchers tested 30 cats by presenting them with plastic tubes containing swabs that had been rubbed under the armpits, behind the ears, and between the toes of their owners and unfamiliar humans.
Cats exhibited a significantly longer interest in unfamiliar scents compared to those from their owners or empty tubes.
Interestingly, the scientists observed that cats initially preferred using their right nostrils to smell unknown odors, later switching to their left nostrils as they became acquainted with the scents.
Cat owners were asked to complete an online survey to evaluate the relationship between their cats’ personalities and their ownership experiences.
Male cats with anxious temperaments tended to repeatedly sniff each tube, whereas those with more relaxed personalities approached the tubes in a calmer manner.
In contrast, there was no observable personality influence on the behaviors of female cats during the experiment.
The findings suggest that pet cats can differentiate between familiar and unfamiliar humans based on scent alone, though it remains uncertain if they can identify a specific individual based solely on smell.
Additionally, the preference for investigating new scents with the right nostril implies a potential lateralization in brain function, a phenomenon also documented in other animals like dogs, fish, and birds.
“Our findings further support the idea that cats utilize their olfactory sense to recognize humans,” the authors stated.
“This also reinforces the significance of rubbing behavior that follows sniffing, which may suggest an exploratory phase that precedes scent marking.”
“This relationship calls for further exploration, particularly regarding whether cats can recognize specific individuals using olfactory signals.”
The study was published online in the journal PLOS ONE.
____
Y. Miyairi et al. 2025. The behavioral response of pet cats to human odor. PLOS ONE 20(5): E0324016; doi: 10.1371/journal.pone.0324016
Leprosy can be caused by two types of bacteria: Mycobacterium leprae and Mycobacterium lepromatosis.
Nobeastsofierce Science/Alamy
Contrary to popular belief, the influence of leprosy existed among the American populace long before Europeans arrived.
“The narrative was that Europeans introduced this dreadful disease to America,” states Nicholas Lascovan from the Pasteur Institute in Paris. “Our findings challenge that notion.”
Globally, the majority of leprosy instances result from the bacteria Mycobacterium leprae. However, in 2008, Xiang-Yang Han and his team from the University of Texas MD Anderson Cancer Center identified a second causative agent, M. lepromatosis, in two individuals from Mexico afflicted with leprosy. Since then, more occurrences of this pathogen have been noted in the US, Canada, Brazil, and Cuba, as well as in four people from Singapore and Myanmar.
Driven to explore this less-studied pathogen, Lascovan collaborated with Han, other researchers, and indigenous communities to analyze ancient DNA from 389 individuals who lived in America before European contact.
They discovered M. lepromatosis at one archaeological site near the Alaska-Canada border and two locations along Argentina’s southeastern coastline, all carbon-dated to roughly 1,000 years ago. The bacterial genome exhibited slight variations, indicating a distinct strain separated by about 12,000 kilometers. “It has rapidly spread across the continent for centuries,” explains Lascovan.
DNA analysis from numerous modern cases, primarily in the US and Mexico, showed that nearly all contemporary strains are closely related, with minor variations from ancient times. Nonetheless, the team also recognized a rare and unusually ancient strain in modern populations that wasn’t found in archaeological sites, suggesting the existence of at least two distinct strains. Notably, M. lepromatosis is still present in North America today, alongside M. leprae, which was introduced by Europeans.
The findings imply that these bacteria have diverged and evolved within the United States for approximately 10,000 years. About 3,000 years ago, a lineage of the pathogen mutated into its current form, capable of infecting red squirrels in the UK and Ireland, causing issues such as skin swelling and unpleasant lesions.
Regarding their origins, genetic data indicate that M. lepromatosis and M. leprae diverged from a shared ancestor over 700,000 years ago, yet the precise location of this divergence remains unidentified.
Modern cases of M. lepromatosis appear to primarily affect the blood vessels of the feet, while M. leprae targets nerves, according to Han. Those infected with M. lepromatosis may experience blocked blood flow, tissue death, and skin breakdown, leading to potentially fatal complications from severe secondary infections caused by bacteria like Staphylococcus aureus. The disease can also progress to internal organs such as the liver and spleen, resulting in some individuals succumbing before the skeletal system exhibits leprosy signs.
This may help clarify why archaeologists have not identified leprosy in ancient artifacts from the Americas, as Han mentions. While skeletal remains from Europe and Asia frequently show clear signs of leprosy-related bone damage, the ancient Canadian individuals examined in this study exhibited only ambiguous jaw lesions, which could arise from various conditions.
Annemieke Geluk from Leiden University in the Netherlands remarked that this “remarkable study” necessitates a rethink of the disease’s history. “My teaching materials indicate that there was no leprosy in the Americas before European colonization,” she noted, “I will need to revise my materials!”
Beyond its historical implications, this research also highlights pressing public health concerns. Leprosy is resurging in certain global regions, and rising antibiotic resistance complicates treatment. “Understanding this is highly critical,” says Geluk. “We need collaborative efforts worldwide to map existing strains.”
Illustration of an ancient bird nesting above the Arctic Circle
Gabriel Ugueto
Recent findings of bone fragments from Alaska indicate that birds have been nesting and breeding in the Arctic for at least 73 million years.
“It’s quite unusual, as raising a newborn in the Arctic is challenging,” explains study author Lauren Wilson from Princeton University.
Currently, around 250 bird species can thrive at the poles. Some migrate great distances to enjoy continuous daylight in summer, while others brave the winter, enduring extreme cold and long periods of darkness. However, knowledge about how these birds first adapted to the highest latitudes remains limited.
Wilson and her team searched for ancient avian traces within the Princreek Formation in northern Alaska, which formed on coastal floodplains about 73 million years ago. At that time, northern Alaska was approximately 1,000-1,600 kilometers closer to the Arctic than it is today.
The researchers retrieved ancient soil samples from several narrow rock layers, encountering temperatures of -30°C (-22°F) in a makeshift tent. “This has definitely been the most demanding fieldwork I’ve undertaken,” Wilson admits.
Back at the lab, they spent hours peering through microscopes at sediments smaller than two millimeters, hunting for tiny fossil bone fragments.
The team uncovered over 50 fossil fragments belonging to ancient birds, primarily from chicks and even embryos. The fossilized bones of these young birds exhibit a sponge-like texture, indicative of rapid bone growth.
Although birds likely began nesting in the Arctic Circle 73 million years ago, these fossils represent the earliest evidence of such behavior, extending the timeline of avian presence back by 30 million years.
However, many fossils are fragmented and do not clarify whether these birds remained year-round or only in the warm summer months.
“The Arctic’s food web, which supports life in extreme cold and darkness, couldn’t exist without the plethora of birds that inhabit high latitudes,” says Steve Brusatte from the University of Edinburgh, who wasn’t involved in the study. “These fossils illustrate that birds have been a vital part of these high-latitude ecosystems for tens of millions of years.”
Wilson’s team identified three major bird groups represented among the fossil fragments: extinct tooth-like birds similar to ducks, extinct tooth-like birds reminiscent of gulls, and various species that may be related to modern birds.
Conversely, the samples did not include bones from older bird groups known as enantiornithines, or “opposite birds.” Gerald Mayle from the Senckenberg Institute in Germany, who also wasn’t part of the study, noted that this finding suggests that more advanced bird ancestors could survive the harsh Arctic conditions due to certain evolutionary advantages that older birds lacked.
The ecosystems that shaped the Princreek Formation existed when non-avian dinosaurs dominated the planet, with evidence that ancient birds coexisted with species like tyrannosaurs and horned ceratopsians in these Arctic environments. Some dinosaurs even nested within the Arctic Circle.
Visitors to flowers, including pollinators, generate distinct sounds through the movement of their wings during flight. These sounds play a significant role in fitness, providing crucial information to flowering plants and potentially influencing resource distribution while attracting pollinators. Recent research conducted by Professor Francesca Barbero from the University of Turin and her team examined the acoustic characteristics of the sounds made by various flight visitors, focusing on the Snapdragon (Anti-Ruhinam sp.) flowers in their natural habitat. Their findings indicate that behaviors such as hovering, landing, and takeoff yield unique acoustic signatures. Moreover, plants exhibit responses to vibroacoustic stimuli from these pollinators, hinting at possible adaptive reactions.
Recording devices, models of Anti-Ruhinam plants, and an approaching Rhodanthidium staticum bee. Image credit: A lively lab.
When pollinators visit flowers, they generate various distinct sounds, ranging from the flapping of wings while hovering to the sounds of landing and taking off.
Nonetheless, these sounds are relatively subtle compared to other vibrations and acoustics present in insect life, leading researchers to overlook the acoustic signals linked to wing and body movements in these insects.
Professor Barbero and her collaborators have investigated these signals, creating a non-invasive and effective approach to monitor impacts on pollinator communities as well as plant biology and ecology.
“The coevolution between plants and their pollinators has largely been explored through visual and olfactory cues, despite emerging evidence that both insects and plants are capable of sensing, producing, or transmitting vibroacoustic signals,” Professor Barbero stated.
They discovered that the sounds of these efficient pollinators led snapdragons to enhance sugar and nectar production, even prompting changes in gene expression related to sugar transport and nectar formation.
These plant responses could serve as survival strategies and coevolutionary tactics, particularly as they can influence how long pollinators linger and their overall fidelity.
“The ability to recognize approaching pollinators through unique vibroacoustic signals may represent an adaptive strategy for plants,” Professor Barbero added.
“By responding to suitable vibroacoustic cues (like those from effective pollinators), plants can bolster reproductive success by encouraging favorable pollinator behavior.”
While it’s evident that lively sounds can elicit plant responses, it’s yet undetermined if plant acoustics can also influence insect behavior.
“If insect reactions to these responses are confirmed, we could harness sound to enhance economically significant plants and crops and increase their appeal to pollinators,” Professor Barbero mentioned.
The research team is continuously analyzing and comparing snapdragon reactions to various pollinators and nectar robbers.
“The myriad ways plants can discern biological factors, including beneficial and harmful insects, neighboring plants, and abiotic signals like temperature, drought, and wind, are genuinely remarkable,” Professor Barbero remarked.
Feedback provides up-to-date news on science and technology from New Scientist, delving into the latest findings and advancements. You can reach out to Feedback@newscientist.com with items you think our readers would find intriguing.
Is the Author Really Gone?
Occasionally, I notice advertisements for courses that claim to teach the secrets of becoming a remarkable creative writer. They seem delightful, but why bother with this when there’s an alternative?
A course that piqued my interest recently is the BBC Maestro, particularly one led by comic icon Alan Moore. We’ve refined parts of it, yet I feel this specialized method has dulled some of his more innovative ideas. Mention to Moore, who considers Northampton the center of the universe and penned a 1174-page novel around this notion, that he isn’t offering us anything fresh.
Maestro’s latest offerings feature surprisingly unusual instructors. Crime fiction maven Agatha Christie would be quite the surprise for keen readers, given that she departed in 1976. The promotional text is genuinely captivating.
Creating an AI clone might seem overwhelmingly complicated, but it does offer a certain reassurance, utilizing a bot based on a deceased author who won’t throw fits in the studio. In contrast, feedback feels like every writer’s struggle. I constantly wonder where my next paycheck will come from. It’s already challenging enough competing with those who radiate talent and charisma. Now, we’re battling with the legacies of the departed.
Or, as I remarked on Blueski, in a moment of unrelated frustration: “There are live, breathing science fiction authors! … You could invite them to participate!!” Feedback concurs: Whatever the context, we prefer to feature our own courses.
The Nature of Intelligence
In science, it’s fundamental to understand that correlation does not imply causation. Just because two variables appear related doesn’t necessarily mean they are connected—unless you’re inclined to believe that Maine’s divorce rate is a result of margarine consumption. It’s a rather basic concept often overlooked in feedback, yet we frequently encounter these misleading correlations.
Reporter James Dinneen draws our attention to unpublished research with an intriguing title: Human intelligence shaped by solar activity rhythms. It suggests a notable correlation between “high-energy solar proton events” and the number of Nobel Prize winners born in a given year.
Researchers specifically examined Nobel laureates “in the fields of science (including economics) and literature.” We must mention our amusement at the subtle parentheses around “economics.”
The authors assure us that the results are “adjusted for a six-month prenatal offset.” Why specifically 9 or 5 months? Will correlations solely emerge from this peculiar adjustment? Regardless, it leads to the hypothesis that “atmospheric radiation patterns could serve as environmental stressors impacting neural circuit formation during prenatal development.” Certainly, that’s one way to interpret the data.
If anyone comes across a more outrageous correlation-based claim, please send it to our usual address. Until then, feedback advises expectant individuals to consider wearing protective gear just in case.
Breakdowns
Feedback believes we should abandon nominal determinism, but alas, we can’t. It was amusing that Andy Greene’s email forewarned consultant urologist Nick Burns Cox, but a quick search from 2019 revealed he had indeed done it. However, in a delightful twist, Stephen Alexander on the May 19th Edition of BBC Radio 4’s Briefing Room featured one sound engineer, David Crackles.
Sam Edge (and we truly hope to scale new heights) flagged two occurrences from issue 3540 of the magazine. Reviews of Intertidal Zone somehow failed to highlight his “satisfactory and fitting” name, Yuvan Aves, from the naturalists who began his birdwatching career. A few pages later, he noted, “The science magazine was being reviewed by one Alexander Magazinov,” in your very own esteemed column (dear readers, take this as a guideline on how to submit).
You can submit your stories via email at feedback@newscientist.com. Don’t forget to include your home address. This week’s and previous feedback can be found on our website.
Could a new approach lead to error-free quantum computers?
Nord’s numbers
Canadian startups in quantum computing assert that the new Qubit technology will enable the development of smaller, more affordable, and error-free quantum computers. However, reaching that goal presents a significant challenge.
Traditional computers mitigate errors by storing redundant copies of information across multiple locations. This method, known as redundancy, requires quantum computers to utilize many additional qubits, potentially hundreds of thousands, to replicate this redundancy.
Julianne Camiland Lemire and her team at Nord’s numbers have engineered a qubit that promises to reduce this requirement to just a few hundred. “The fundamental principle of our hardware is to utilize qubits with inherent redundancy,” she notes.
Competing qubit technologies include small superconducting circuits and ultra-cold atoms. The Nord Quartique qubit employs a superconducting cavity filled with microwave radiation. Inside this cavity, photons are trapped and bounce back and forth, allowing information to be encoded within quantum states.
This design is not entirely new; however, it’s the first instance of employing “multimode encoding.” Researchers utilize multiple properties of photons simultaneously to store information, thereby enhancing resilience against common quantum computing errors.
Victor Albert from the University of Maryland mentions that effective quantum error correction necessitates more qubits, meaning information is stored in interconnected groups rather than isolated qubits, safeguarding the system from individual failures.
The innovative Qubit incorporates a second technique that enables the effective storage of information in a four-dimensional mathematical framework.
This is why NORD’s quantitative project anticipates that their error-resistant quantum computers will be up to 50 times smaller than those utilizing superconducting circuit qubits, the most advanced yet. Moreover, the company estimates that machines built with their Qubits will consume as much power as those using conventional methods.
Despite these advancements, Nord has not yet released data on multiple kits. Furthermore, ensuring the multimode encoding functions correctly is still pending, indicating that the new Qubit has yet to be applied in computational tasks. Significant technical hurdles remain before these teams can achieve scalable quantum computing.
“It’s too early to conclude whether this fault-resistant approach will inherently outperform other methods,” remarks Barbara Telhal at Delft University of Technology in the Netherlands.
Michel Devoret from Yale University observes that while the new development is “not groundbreaking,” it enhances the science of quantum error correction and reflects the company’s grasp of technical difficulties.
Lemire expresses that the team is actively working on building additional Qubits and refining existing designs. They aim to implement a “perfect mechanism” for manipulating information stored within the Qubit, essential during quantum computational processes. The goal is to create a practical quantum computer featuring over 100 error-resilient qubits by 2029.
Astronomers have uncovered new phenomena occurring in the solar atmosphere, aided by remarkable new images of stars.
In a study conducted by Dark Schmidt and his team at the US National Solar Observatory, they utilized the California Good Solar Telescope to capture these images. By employing a technique known as adaptive optics, they minimized distortions caused by Earth’s atmosphere during solar observations, enabling them to examine the features of the corona, which is the outer atmosphere of stars.
“The level of detail is unprecedented; these are things that no one has ever observed before,” Schmidt states.
Plasma flows through the sun’s corona
Schmidt et al./njit/nso/aura/nsf
Newly revealed details include plasma flows within the corona and the plasma loops referred to as solar prominences.
The images also provide the clearest view of coronal rain observed to date, displaying plasma droplets about the size of cities falling toward the sun’s surface as they cool and become denser. “Gravity pulls them down toward the sun,” Schmidt explains.
The observations were conducted during the summers of 2023 and 2024. Researchers anticipate that some images will shed light on why the solar corona is significantly hotter than the solar surface—a difference of millions versus thousands of degrees, a perplexing enigma.
One theory involves the magnetic fields that interact and reconnect within the solar corona. “In numerous images and videos we present, you can observe intricately intertwined structures and chaotic movements at a minute scale,” notes Schmidt.
Some features captured in the images remain unexplained, such as a plasma filament splitting into multiple fragments. “Currently, we are missing a conclusive explanation,” Schmidt conveys. “This could indicate a novel phenomenon, and it’s thrilling to see how other scientists will further investigate this.”
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