分类: science

  • Nasa launches mission to save falling space telescope

    Nasa launches mission to save falling space telescope

    On Friday, NASA made space exploration history by launching a first-of-its-kind, funded mission to rescue the iconic Swift Observatory, a pioneering space telescope that has unlocked groundbreaking insights into the universe’s most extreme cosmic events, before it burns up during atmospheric reentry in the coming months.

    Launched originally in 2004, the car-sized Swift Observatory was purpose-built to detect and study gamma-ray bursts—cataclysmic explosions triggered by the death of massive stars or collisions of neutron stars that release as much energy in seconds as the sun will output over its 10-billion-year lifespan. Built for speed and agility to capture these fleeting, high-energy events (for which it earned its name), Swift has operated for more than two decades, delivering transformative data that allows astronomers to study phenomena that no other active instrument can observe. In 2022 alone, it captured a detailed image of a gamma-ray burst originating from a dying star 2 billion light-years from Earth.

    In recent years, however, increasing solar activity has expanded Earth’s upper atmosphere, creating drag at Swift’s current orbital altitude that has gradually slowed the telescope and pulled it lower. From its original 600-kilometer (373-mile) orbit, Swift’s altitude has dropped to roughly 360 kilometers (220 miles), with most of that decline occurring in just the last two years. Left unaddressed, it will fall below 300 kilometers (186 miles) in the coming months, making any rescue attempt impossible, before eventually reentering the atmosphere and burning up completely.

    For the global astronomy community, losing Swift would be an irreversible blow. “It’s an important telescope that enables us to study super high-energy phenomena that we have no other means to study,” explained Dr. Simeon Barber, a senior research fellow at the Open University and a space scientist familiar with the mission. While he acknowledges the operation is “high risk,” Barber added that the scientific community remains optimistic that the unprecedented attempt is worth pursuing.

    Tasked with the extraordinary rescue is Arizona-based startup Katalyst Space Technologies, which was given less than a year to design, build, and launch its custom-built LINK intercept craft. In a remarkable engineering feat, the Katalyst team completed the entire project in just eight months. “What the Katalyst team has accomplished in just eight months is extraordinary,” said Katalyst CEO Ghonhee Lee. “The team designed, built, tested, and integrated a robotic spacecraft capable of performing one of the most ambitious commercial servicing missions ever attempted.”

    The fridge-sized LINK craft is fitted with three robotic gripper arms, an array of high-resolution cameras, precision navigation sensors, and small maneuvering thrusters. Launched aboard a Pegasus XL rocket that placed it in the general vicinity of Swift’s orbit, LINK will spend the next several weeks systematically powering on and testing all its systems to confirm they survived launch.

    Over the following three to four weeks, LINK will conduct a precision approach to the moving, descending telescope, gradually maneuvering into formation. Before attempting a capture, LINK will circle Swift and capture full imagery of the observatory—critical because 22 years in orbit have likely altered the telescope’s structure, and it was never originally designed to be grappled in space.

    The LINK craft will approach at an extremely slow pace before its three arms extend to secure a firm grip on Swift. If capture is successful, LINK will slowly fire its thrusters over two to three months to gently lift the combined craft back to Swift’s original stable 600-kilometer orbit, allowing the decades-old telescope to resume its critical scientific work.

    This ambitious mission has never been attempted before, and success is far from guaranteed: countless variables must align perfectly for the operation to reach its goal. If the rescue of Swift succeeds, however, space experts say the next candidate for an orbital rescue mission could be one of astronomy’s most beloved instruments: the iconic Hubble Space Telescope. The astronomy community worldwide will be watching closely as the unprecedented operation unfolds over the coming months.

  • Space tests to aid blood and brain research

    Space tests to aid blood and brain research

    More than a month after docking at China’s Tiangong Space Station, the three-person Shenzhou XXIII crew has completed a diverse slate of cutting-edge scientific experiments spanning space medicine, neuroscience, robotics and microgravity physics, China’s manned space agency has confirmed. Led by mission commander and spaceflight engineer Colonel Zhu Yangzhu, with spacecraft pilot Colonel Zhang Zhiyuan and science payload specialist Lai Ka-ying completing the team, the astronauts have supported pioneering research designed to advance human understanding of long-duration spaceflight and improve future deep space mission capabilities.

    In a series of collaborative medical procedures, the crew performed reciprocal ultrasound scans of multiple body regions including the neck, wrist, and abdomen. The biometric data collected during these scans is now being analyzed by terrestrial researchers to map how microgravity alters blood vessel structure, blood flow dynamics, and the adaptive remodeling of sensitive human muscle groups — insights critical for protecting astronaut health on months-long missions beyond low-Earth orbit.

    The team also advanced in-orbit robotics research, conducting haptic interaction trials using the experimental robot Xiaohang. Early findings from these tests will be used to refine motion planning algorithms, a key step toward developing more capable, reliable autonomous robots that can assist astronauts with routine and complex tasks during future space expeditions.

    Neuroscience research forms a core pillar of the mission’s scientific agenda. The Shenzhou XXIII crew used electroencephalogram recording equipment to run multiple experiments focused on visual-motor processing and how human behavioral responses shift under different space-based lighting conditions. Complementing this work, they deployed near-infrared functional brain imaging technology to collect high-resolution data on how long-duration space exposure alters the brain’s functional network organization, as well as the brain’s innate ability to self-adjust and adapt to the extreme environment of space.

    Beyond life sciences, the crew installed and serviced several leading-edge microgravity physics experimental facilities, advancing global research into physical phenomena that can only be observed in weightless conditions. In a novel addition to the mission’s health research, the team also used a specialized diagnostic tool integrating traditional Chinese medicine diagnostic principles to collect physiological data. This data is expected to lay a solid foundation for developing more effective long-term astronaut health monitoring protocols for future missions.

    When off-duty from scientific tasks, the crew made a small piece of culinary history: using a specially designed hot air oven, they prepared roasted pumpkin — a dish no space crew has cooked before. The novel meal follows the 2025 precedent set by Shenzhou XX and Shenzhou XXI crews, who cooked and enjoyed grilled chicken wings and steak, marking the first publicly broadcast space barbecue in human spaceflight history.

    Liu Weibo, an engineer at the Astronaut Center of China, explained that China’s proprietary space oven is a world-first innovation: unlike earlier space cooking devices, it integrates fume extraction, food residue collection, even heating, and food securing systems all within a single closed chamber. While the United States sent an oven to the International Space Station in 2019 for an experiment that baked cookies in microgravity, those cookies were never consumed by crew and were returned to Earth solely for research, making China’s crew space cooking milestones unprecedented.

    Launched on May 24, 2026, the Shenzhou XXIII mission reached Tiangong the following day. It marks China’s 17th overall manned space mission and the 11th crewed expedition to the Tiangong Space Station, continuing the country’s steady progress in building a permanent, research-focused outpost in low-Earth orbit.

  • What news reports from 1600s tell us about life in Mughal India

    What news reports from 1600s tell us about life in Mughal India

    Long before European printing presses turned newspapers into a mass information medium, the sprawling Mughal Empire of South Asia built one of the early modern world’s most sophisticated, far-reaching news networks. From the late 1500s onward, armies of trained scribes, court agents, and administrative secretaries produced regular documents called *akhbarat* — handwritten Persian bulletins that captured everything from royal court intrigue and military campaigns to official appointments, treasury updates, and even elite gossip.

    Drafted quickly on fragile paper, these hybrid documents served multiple purposes at once: they functioned as internal intelligence briefings, official government circulars, and public news bulletins rolled into one. On any given day, hundreds, and possibly thousands, of these reports circulated between the imperial court in Delhi and provincial administrative hubs across the subcontinent. For a empire that, at its 17th century peak, controlled most of South Asia and ruled nearly a quarter of the global population, this network was the glue that held its sprawling territories together. Many reports were read aloud to gathered local officials, carrying updates from the emperor’s court to the most distant corners of his domain.

    For decades, tens of thousands of pages of these *akhbarat*, along with complementary administrative orders and records, have rested dormant in archives and libraries across India and the United Kingdom. While the historical community has long been aware of their existence, very few scholars have ever committed to deep dives into these unindexed, massive collections. That changed when University of California, Berkeley historian Munis D. Faruqui dedicated nearly 20 years of his academic career to untangling the stories held within these documents.

    Faruqui began his work in 2007, diving into the *Akhbarat-i Darbar-i Mualla* (Newsletters of the Exalted Court), a massive collection split across archival institutions in both India and the UK. Working through more than 6,500 pages held at Kolkata’s National Library alone, Faruqui traced the lives of princes, military generals, court advisors, royal women, imperial eunuchs, and other lesser-known historical figures across tens of thousands of individual entries. The product of this decades-long work is an upcoming new history of Mughal emperor Aurangzeb — also known by his regnal title Alamgir — and the Mughal state during the late 17th century that promises to rewrite long-held assumptions about both the emperor and how his empire actually functioned.

    Today, four major collections of these *akhbarat* are confirmed to exist, held in London, Bikaner, Sitamau, and Kolkata, though historians suspect additional caches may be held in private collections. One large set of documents was stored for decades in bundles in the cool, dry basement of Jaipur Fort. In the early 1800s, James Tod, an East India Company official and early antiquarian, borrowed a large portion of these reports, but failed to return them when he departed for Britain in 1823. He later donated the entire collection to the library of the Royal Asiatic Society of Great Britain and Ireland, where it remains today.

    The most extensive surviving collection is held at Kolkata’s National Library, which holds 21 full volumes of *akhbarat* specifically documenting the reign of Aurangzeb, who ruled the Mughal Empire from 1658 to 1707 as its last great expansionist emperor. These volumes were once part of the personal archive of Sir Jadunath Sarkar, the pioneering Indian historian and Aurangzeb’s most influential 20th century biographer.

    At first glance, the content of the reports can seem overwhelmingly mundane. Most entries focus on routine administrative details: new official appointments, local land disputes, troop movements, ceremonial gift exchanges, reports of royal illnesses, and endless granular administrative updates. But when read as a whole, Faruqui argues, these documents create something extraordinarily rare: an almost uninterrupted record of an empire monitoring its own day-to-day operations.

    Archival coverage of Aurangzeb’s first 20 years on the throne is spotty, but surviving material from the early 1680s onward is remarkably extensive, providing an almost daily record of court and empire life for years at a time. All together, the documents shed new light on roughly a third of Aurangzeb’s 49-year reign.

    Faruqui, who has spent his entire academic career studying late 17th century Mughal India — a period when the empire was at its territorial peak, but already showing early signs of the decline that would eventually open the door for British colonial rule — says the *akhbarat* have completely reshaped his understanding of the era. “My whole experience of working with the akhbarat has been one big eureka moment after another!” he explained in an interview. “It never ceases to amaze me how the density of the informational ecosystem was at the time.”

    The reports Faruqui studied were originally created for the Raja of Jaipur, but hundreds of other regional nobles, princes, and high officials almost certainly received similar regular updates from their own agents stationed across the empire. This created a connected information ecosystem that was remarkably advanced for the pre-modern world. “I am floored when I think about the ecosystem that spawned such rich knowledge gathering and transference,” Faruqui added.

    The sheer volume of information flowing through the network confirms that, by pre-modern standards, the Mughal state maintained a surprisingly detailed awareness of events across its vast territories. While Faruqui notes the state’s ability to act on this information was inconsistent, the network’s reach shaped the lives of tens of millions of people, for better and for worse.

    Time and again, the contents of the *akhbarat* upended long-held historical assumptions that Faruqui had accepted early in his career. For example, he found very little evidence in the reports of the widespread forced religious conversions that have long been closely associated with Aurangzeb’s rule. The research also revealed that the imperial harem and the corps of imperial eunuchs wielded far more political influence than most modern historians have recognized.

    Aurangzeb himself comes off as less distant and coldly austere than popular and historical narratives have often portrayed him. Faruqui also found far fewer hostile references to Sikh communities and leaders than he expected, a finding that contradicts a long-standing Sikh historical tradition that holds Aurangzeb responsible for the persecution of Sikh communities and spiritual leaders as early as 1711.

    Many of Faruqui’s most important discoveries came not from dramatic single revelations, but from noticing repeated patterns across hundreds of entries. One name that appeared again and again throughout the newsletters was Zinat-un-Nisa, Aurangzeb’s daughter. While historians have long known of her existence, almost nothing had been written about her actual role in Aurangzeb’s court. But entry after entry placed her at the center of key political events.

    Within weeks of starting his research, Faruqui realized Zinat-un-Nisa was far from a minor royal figure. He found she was a powerful political actor in her own right, and an “extraordinarily influential and important political bulwark for her ageing and politically vulnerable” father during the final years of his reign. She will now feature prominently in Faruqui’s new discussion of the political role of the Mughal imperial harem.

    Each new discovery forced Faruqui to rethink decades of established scholarship. “Many of the stories I had been telling myself since the 1990s [when I first heard about the akhbarat] required rethinking,” he said. The *akhbarat*, he argues, offer historians a once-in-a-generation chance to reassess not just Aurangzeb’s legacy, but the entire structure and function of the Mughal Empire.

    So why have most historians avoided working with these vast collections? Faruqui says he understands the hesitation. Early in his own career, he spent seven frustrating weeks working through another massive unindexed Mughal archive before ultimately abandoning the project. That experience left him wary of large, unorganized collections for nearly a decade.

    The *akhbarat* present exactly the same challenge. “Searching for anything in it is like hunting for a needle in a haystack,” he says. With no central index and tens of thousands of unorganized entries, working through the archive requires extraordinary patience, stamina, and a willingness to read hundreds of pages just to identify subtle patterns and critical information.

    Faruqui notes that Aurangzeb has remained one of the most debated figures in Indian history in part because of the sheer volume of surviving documentary evidence from his reign. While the surviving record for earlier Mughal emperors is relatively sparse, by Aurangzeb’s rule the documentary trail expands dramatically: administrative archives, private correspondence, regional court histories, biographical collections, poetry, European trading company records, and traveller accounts are all abundant.

    For Faruqui’s research, the *akhbarat* were irreplaceable, but they are only one small part of a much larger body of underused Mughal archival material. “Dozens of books, if not more, can be written based on all the materials that are out there waiting for intrepid historians to come along and utilise them,” he says.

    When Faruqui first opened the Kolkata collection nearly 20 years ago, he had no idea how transformative the material would be. “Upon turning the very first page of the first volume, I realised what an extraordinary resource this collection is,” he recalls. “I immediately saw storylines that had been long ignored or barely touched.”

    His upcoming book only explores a small fraction of the new historical narratives held in the collection. “There are so many, many others that remain to be explored by others,” he says.

  • Europe’s extreme heat would be impossible without climate change, scientists say

    Europe’s extreme heat would be impossible without climate change, scientists say

    This June, a historic, day-and-night heatwave has seared across Western and Southern Europe, bringing dangerous triple-digit temperatures and oppressive humidity to millions of people. A groundbreaking rapid attribution study released Friday by the international climate research collective World Weather Attribution (WWA) has delivered a definitive conclusion: this record-breaking extreme heat event could not have occurred without the influence of human-caused climate change.

    The research, which analyzes the current heat dome-fueled heatwave that began spreading across the continent on June 18, draws stark comparisons between modern climate conditions and historical heat patterns. Scientists found that an identical heat event would have been virtually impossible to occur in the climate conditions that existed 50 years ago, in 1976. Compared to the baseline of just 20 years ago, this type of extreme heat is now 200 times more likely to occur.

    To put these temperature shifts in context, the study team compared current temperatures to two major historic European heat events, 1976 and 2003, which were previously regarded as extreme benchmarks. Researchers estimate that a comparable heatwave in 1976’s cooler climate would have registered 3.5°C (6.3°F) lower during daytime hours and 2.4°C (4.3°F) lower at night. Even as recently as 2003, the same event would have been 2°C (3.6°F) cooler during the day and 1.3°C (2.3°F) cooler after sunset.

    “The increase in temperatures was so dramatic that we would have expected to have never seen this event in the 1976 climate,” explained lead author Theodore Keeping, a climate scientist at Imperial College London’s Centre for Environmental Policy. “And it would also still have been very, very rare, even 23 years ago in 2003.”

    WWA, a European-based collaborative network of climate scientists focused on linking extreme weather to climate change, has pioneered rapid event attribution studies since 2015. Their work examines how much of the increased risk of extreme events can be traced back to climate change driven by fossil fuel emissions. While the organization’s rapid studies have not completed full peer review, they rely exclusively on methodology that has already passed peer review, giving their findings broad scientific credibility. For this analysis, the team combined observed on-the-ground temperature data with weather forecast modeling to assess the full scope of the heatwave.

    Beyond just air temperature, the study measured combined heat stress, a metric that accounts for both temperature and humidity and directly reflects dangerous strain on the human body. The analysis found that 45 percent of the 850 cities across 30 European countries included in the study have already broken, or are on track to break, all-time records for heat stress. Keeping noted that this combination of extreme heat and high moisture makes the current event far more dangerous than a dry heatwave, as it impairs the body’s ability to cool itself through sweating.

    In the researchers’ assessment, this marks the most severe heatwave ever recorded in Northwestern Europe, and the most intense humid heat event ever documented in the region.

    Europe is uniquely vulnerable to this type of extreme heat, due to its faster rate of warming compared to the global average. Data from the EU’s Copernicus Climate Change Service confirms that Europe has warmed at twice the global average rate since the 1980s, making it the fastest-warming continent on Earth. A 2023 WWA study found that roughly 1,500 excess deaths were tied to a climate change-fueled European heatwave last summer alone.

    Much of the continent also lacks critical infrastructure to handle sustained extreme heat. Most residential and public buildings across Western Europe do not have widespread air conditioning, leaving millions without a reliable way to cool down after the sun sets. Unusually high overnight temperatures during this heatwave have prevented people from recovering from daytime heat exposure, amplifying health risks.

    In response to the crisis, national weather agencies across France, Italy, Spain, the United Kingdom and other impacted countries have issued the highest-level red heat alerts. Major sporting events, school sessions, public transit operations and tourist attractions have been restricted or canceled to reduce heat-related risks. France, which has born the brunt of the current heatwave, recorded its hottest all-time national temperature this week, and has already reported 40 drowning deaths as people flocked to bodies of water to find relief from the heat.

    Remarkably, researchers found that the current El Niño ocean warming cycle in the Pacific has had no measurable impact on this specific heat event. This June’s heat also follows on the heels of an unprecedented record-breaking heatwave that hit Europe in May 2024, marking an early start to the extreme heat season that typically does not arrive until July and August.

    Some outside climate experts say the WWA study may actually understate the role of climate change in driving the extreme heat. Michael Mann, a prominent climate scientist at the University of Pennsylvania who was not involved in the research, noted that the study’s findings are reasonable, but similar attribution analyses have consistently underestimated how much climate change amplifies extreme heat events.
    “If anything, this latest assessment — and all similar assessments — are actually underestimating the role that climate change is playing here,” Mann said, pointing to his own separate research on climate change-driven heat stress amplification in North America.

    For Keeping and the WWA team, the findings of the study send a clear message to policymakers and communities: extreme heat events like this are no longer rare anomalies, and urgent action is needed both to adapt to unavoidable warming and cut the carbon emissions that are driving climate change.
    “We need to expect them to happen. They’re only going to become more frequent in the near term,” Keeping said. “We also need to address the source of climate change as well. And that is very simply carbon emissions from burning fossil fuels.”

  • Archaeologists find huge Viking textile production site in Denmark

    Archaeologists find huge Viking textile production site in Denmark

    Archaeologists from Denmark’s Moesgaard Museum have uncovered an unprecedented large-scale Viking Age industrial site near the city of Aarhus, a discovery that upends long-held outdated stereotypes about Viking societal complexity. Dating back between 600 and 950 CE, spanning the late Iron Age and early Viking Age, the 100,000-square-meter settlement is located in Søften, just 10 kilometers north of Aarhus on the Jutland peninsula.

    After a 10-month excavation led by senior archaeologist Liv Stidsing Reher-Langberg, the team confirmed the site’s clear specialization in large-scale textile manufacturing — a feature that sets it apart from all other known Viking-era settlements recorded to date. The dig uncovered over 30 semi-submerged pit houses, structures that served as both workshops and worker accommodations during the Viking period, alongside a dedicated zone for processing raw flax. Artifacts recovered from the site include spindle whorls, loom weights, silver trade coins, decorative glass beads, and domestic pottery, all of which confirm the site’s core function as a centralized production hub.

    The layout of the settlement, which separates production areas from craft zones and includes a single distinct residential structure, indicates that the entire operation was overseen and controlled by a powerful authority figure who held centralized control over local resources and output. The discovery did not come as a complete surprise: amateur detectorists had been recovering silver coins from the area for 30 years, and a trial dig conducted 18 months prior, ahead of planned construction for a new highway and industrial park, confirmed the presence of significant ancient remains.

    “When we opened the initial test trenches, we quickly realized the site extended far beyond our initial estimates, with pit houses and production features stretching across the entire area,” Reher-Langberg explained of the moment the team grasped the scale of their find.

    Moesgaard Museum historian Kasper Andersen noted that the Søften site fills a critical gap in research into the economic, political and social structures of early Viking-era Jutland. At the time, Aarhus — then called Aros — was already a major hub for royal power and international trade, and just four kilometers from Søften, archaeologists uncovered a noble Viking settlement in Lisbjerg just last year. Andersen argues that outlying specialized production sites like Søften supplied goods that fed into Aros’ extensive international trade networks, connecting rural Danish production to markets across Europe and beyond.

    “A settlement of this scale and specialization cannot be explained by local demand alone,” Andersen emphasized. “It has to be understood as a node in a much larger, interconnected international commercial network.”

    The find directly challenges the pervasive outdated stereotype of Vikings as unorganized, barbaric raiders with no complex social or economic structure. “To create a centralized production site like Søften, you need a highly organized society with structured production lines and established trade outlets for output,” Andersen said. “These textiles were made for a market far larger than the immediate local area.”

    Reher-Langberg plans to conduct further analysis, including carbon dating and pollen testing, to answer remaining open questions, such as what specific types of textiles were manufactured at the site and how long the hub operated continuously.

  • Spider which uses spring trap to capture prey discovered in Australia

    Spider which uses spring trap to capture prey discovered in Australia

    In the remote, dense rainforests of northern Queensland, Australia, a team of researchers from Macquarie University has uncovered a remarkable new species of spider with a one-of-a-kind hunting strategy that has stunned arachnid biologists. The tiny arachnid, already nicknamed ‘ballista’ after the ancient stone-hurling battle weapon, has evolved a specialized catapult-like silk trap built exclusively to catch a single, dangerous target: aggressive green tree ants (*Oecophylla smaragdina*).

    Lead researcher Professor Ajay Narendra explained that targeting this notoriously risky prey required a completely unprecedented evolutionary adaptation. Green ants are formidable opponents for most spiders: they carry powerful chemical defenses, many can deliver painful stings, and they can call in swarms of backup colony members within minutes to overwhelm predators. To overcome these risks, the ballista spider developed a hunting mechanism that delivers what researchers call “exceptionally high power” to subdue prey before it can mount a defense.

    To document the spider’s unique behavior, the research team spent 10 nights conducting field observations in the tropical rainforest, capturing the trap mechanism using high-speed and infrared imaging technology. Their findings, published in the peer-reviewed journal *Current Biology*, detail the spider’s careful, hours-long trap-building process.

    During daylight hours, the ballista spider hides in small silk nests on the undersides of leaves on trees occupied by green tree ant colonies. After night falls, it descends roughly 50 centimeters to a nearby leaf, branch, or forest floor to begin construction. First, it anchors the trap with a sturdy silk anchor line. It then builds a cone-shaped scaffold made up of dozens of tensioned silk lines, before wrapping the entire structure in a thinner, more elastic silk layer and retreating back up to a waiting position above the trap.

    When a green tree ant approaches the snare and bites the silk, the tensioned structure triggers instantly, hurling the ant upward into a larger capture web above with extraordinary force. Researchers calculate the acceleration generates g-forces 15 times higher than the maximum extreme g-forces experienced by fighter jet pilots — a level of power never before recorded in a spider’s web.

    After the ant is launched into the upper web, the spider waits until the prey is fully immobilized before moving in to feed, eliminating any risk of counterattack from the ant. What makes this adaptation even more unusual is the spider’s extreme prey specificity: tests showed the ballista spider only catches green tree ants, even when other species of nocturnal ants were placed within reach of the trap. Researchers suspect the spider lures green ants specifically by adding species-specific pheromones to the trap silk, a strategy that triggers the ants to attack the structure unknowingly.

    Professor Narendra noted that this discovery breaks new ground for arachnology. “This seems to be the only case where a spider’s web is designed to catch a single prey species, and where the mechanism is triggered by the prey rather than by the predator,” he said. Co-researcher Dr. Jonas Wolff added that the trap mechanism evolved as a highly specialized way for the tiny spider to pick off individual hazardous ants one by one, moving them to a safe distance far from ant trails and colonies before the prey can alert the rest of the colony.

    The new species belongs to the genus *Propostira*, and was first spotted by Greg Anderson, a biomedical researcher and amateur arachnid researcher and photographer, before the formal study was launched. It is yet to receive a formal scientific name, but the common nickname ‘ballista’ has already been widely adopted by the research team in reference to the extreme speed and force of its hunting weapon.

  • Mexico, Italy and others see up to two more months of heat stress than in the 1970s, study says

    Mexico, Italy and others see up to two more months of heat stress than in the 1970s, study says

    A landmark new study published in *Nature Climate Change* on Monday delivers stark, granular data confirming that decades of human-caused planetary warming have triggered a dramatic, widespread increase in dangerous heat stress across the globe. The research, which moves beyond standard temperature measurements to focus on “feels-like” temperatures that directly impact human health, finds that dozens of nations are now facing one to two additional months of heat stress annually compared to 60 years ago, with heat risk spreading even to regions that historically avoided such dangerous conditions.

    Unlike prior climate research that has largely focused on raw air temperature increases, the study led by Rebecca Emerton, a senior scientist at the U.K.-based European Centre for Medium-Range Weather Forecasts, uses the Universal Thermal Climate Index to assess how combined environmental factors—temperature, humidity, wind speed, and more—affect the human body’s ability to regulate its internal heat. This approach provides a far more accurate picture of actual public health risk, because high humidity disrupts sweat evaporation, the human body’s primary natural cooling mechanism, making humid heat waves far more deadly than dry heat events of the same temperature.

    The research categorized heat stress into three tiers of increasing risk: strong heat stress (index temperatures ≥ 32°C / 89.6°F), very strong heat stress (≥ 38°C / 100.4°F), and extreme heat stress (≥ 46°C / 114.8°F). Comparing modern data to baseline conditions from the 1970s, the team found that heat stress is intensifying in already warm regions and expanding into new geographic areas.

    Hard-hit regions include parts of Southern and Eastern Africa (Namibia, Angola, Tanzania, Kenya, and Uganda), Mexico, and Central America, which could see up to 50 additional days of strong heat stress annually compared to the 1970s. Southern European nations including Southern Spain, Italy, Greece, and Turkey face up to 40 extra days of strong heat stress, with most of Southern Europe recording nearly a full month of additional heat stress days relative to 60 years ago. In the United States, most of the country experiences 15 or more extra days of strong heat stress annually, with southern states like Texas and Florida recording close to 25 or more additional days of very strong heat stress.

    Beyond longer heat stress seasons, the study also found that overnight heat is warming faster than daytime heat: the 10 warmest annual nights have warmed by 0.32°C (0.58°F) per decade, compared to 0.27°C (0.49°F) per decade for the 10 warmest annual days. The rise in tropical nights—defined as nights with minimum temperatures of at least 20°C (68°F)—is particularly concerning, because it prevents people from cooling off and recovering from daytime heat exposure, raising the risk of heat-related illness and death. Overall, 1 billion more people around the world now experience at least one day of extreme heat stress annually than they did in the 1970s.

    Emerton noted that the expansion of heat stress into previously unaffected regions was one of the study’s most striking findings. “It’s striking to see heat stress not only intensifying in those places that we already consider as being hot or used to experiencing heat waves … but also to see this, we call it, expanding footprint of heat stress expanding into regions where it’s historically been rare or non-existent,” she said.

    Jennifer Francis, a climate scientist at the Woodwell Climate Research Center who was not involved in the study, emphasized that the new research adds critical granularity to existing understanding of climate change risks. “This study adds stark details about increasing dangers to billions of humans,” Francis said. “This analysis shows not only is temperature rising, but so is humidity, which makes high temperatures more deadly because our body’s air conditioning system — sweating — struggles to keep up.”

    Lead researcher Emerton stressed that the severity of future heat stress increases depends entirely on near-term climate action. The study underscores the urgent need for aggressive cuts to fossil fuel emissions to mitigate future warming, alongside targeted investments in adaptation measures including heat health action plans, early warning systems, and updated climate risk assessments to protect vulnerable communities from rising heat risk.

  • Bird flu kills more than 75% of baby seals on remote Australian island, study finds

    Bird flu kills more than 75% of baby seals on remote Australian island, study finds

    A newly released preliminary study has uncovered a catastrophic avian influenza outbreak that has wiped out thousands of newborn southern elephant seals on Australia’s remote Heard and McDonald Islands, a remote sub-Antarctic ecosystem roughly 4,000 kilometers southwest of the Australian mainland. The unpeer-reviewed research, posted to the preprint platform BioRxiv, offers the first comprehensive look at the impact of the H5N1 strain of bird flu on these isolated Australian territories, marking the first confirmed detection of the virus in any Australian external territory.

    Heard and McDonald Islands are one of the most untouched marine wildlife habitats on the planet, hosting more than a million breeding seabirds and multiple species of pinnipeds that rely on the region’s remote, nutrient-rich waters to reproduce. To assess the scale of mortality, researchers from the Australian Antarctic Program combined drone aerial surveys, on-the-ground field visits, and virological testing of samples collected from nine native species between October 2025 and January 2026.

    The results paint a grim picture for the island’s southern elephant seal colony. Of the estimated 17,364 seal pups born on Heard Island, researchers calculate approximately 13,359 — more than 76% of the entire pup population — have died from H5N1 infection since the virus first arrived in August 2025. In some coastal breeding areas, mortality rates reached as high as 97%. Researchers warn that even this devastating figure may be an underestimate, as pup deaths were still ongoing when the final survey data was collected.

    Virological testing confirmed the presence of H5N1 in six native species: southern elephant seals, Antarctic fur seals, king penguins, gentoo penguins, and South Georgia diving petrels. While hundreds of adult king penguins died from the virus, the mortality rate for this population remained low relative to the total colony size, though it was still significantly higher than historical baseline levels. Notably, the outbreak did not cause unusual mortality among albatross populations or two endemic species: the Heard Island shag and the black-faced sheathbill.

    Lead author Dr. Julie McInnes, a wildlife biologist, noted that the detection of H5N1 on the islands confirms the virus’s continued eastward spread across the sub-Antarctic region. The outbreak mirrors the pattern seen on other sub-Antarctic landmasses, such as South Georgia, where southern elephant seal populations, particularly young animals, have borne the brunt of H5N1 mortality. Researchers trace the origin of the outbreak to migratory seabirds that travel from the French-administered Crozet Islands, located roughly 1,800 kilometers northwest of Heard Island, where the virus was already circulating.

    The devastating mortality toll has prompted warnings from Australian federal officials about the risk of the virus reaching the Australian mainland, which remains the only continent yet to record a confirmed case of the globally spreading H5N1 strain that has impacted both avian and mammalian populations worldwide. Australian Environment Minister Murray Watt described the mass seal pup deaths as “sobering,” emphasizing that the outbreak demonstrates Australia cannot afford complacency in preparedness efforts. “We must be realistic about the likelihood of an incursion here, and plan accordingly,” Watt said.

    Moving forward, the Australian Antarctic Program — a collaborative partnership between the Australian government and national research institutions — will continue ongoing monitoring of wildlife populations across the country’s sub-Antarctic territories to track the ongoing impact of the outbreak and detect any further spread of the virus.

  • Archaeology team unearths ‘prototype’ of world-famous Stonehenge monument just a few miles away

    Archaeology team unearths ‘prototype’ of world-famous Stonehenge monument just a few miles away

    Archaeologists have announced a groundbreaking discovery near England’s iconic Stonehenge: a 5,500-year-old wooden structure that researchers believe may have served as an early prototype for the famous prehistoric stone monument, predating it by roughly five centuries. The announcement was made Thursday, just days ahead of this year’s summer solstice, the annual event that draws tens of thousands of visitors to the Stonehenge site each year.

    The find was made by a team from British archaeological firm Wessex Archaeology, led by veteran archaeologist Phil Harding, a household name in the UK from his decades of work on the popular Channel 4 television series *Time Team*. The dig site is located in Bulford, just 3.1 miles from the main Stonehenge circle on Salisbury Plain, and was carried out between 2015 and 2017 as part of pre-construction archaeology for the UK Ministry of Defense’s troop relocation program. The Ministry is moving thousands of service personnel back to the UK from Germany after decades of large British military presence there, and the Bulford area already hosts a major military barracks within one of the country’s largest training grounds, located near the Stonehenge World Heritage Site.

    According to the team’s analysis, the ancient structure was made up of two massive wooden poles set 394 feet apart, positioned to align directly with the rising sun on the summer solstice and the setting sun on the winter solstice — matching the same solar alignment that defines the later Stonehenge stone circle. Along with the remains of the wooden structure, archaeologists uncovered a rich collection of prehistoric artifacts at the site, including Neolithic pottery, ancient animal bones, and a rare disc-shaped stone tool. Harding, 76, said the site was almost certainly a gathering place for large ceremonial religious events held by Neolithic communities 500 years before the iconic stone circle at Stonehenge was completed.

    For Harding, a career archaeologist approaching the end of his decades-long fieldwork career, the discovery is a once-in-a-lifetime find. “Opportunities like this probably only come once in a career, in a lifetime,” he said. “I’m probably towards the end of my career now, but thank God I’m still in archaeology long enough to be part of this discovery, because it’s certainly the highlight of my career.”

    After the initial excavation wrapped up in 2017, researchers spent years conducting detailed analysis, radiocarbon testing, and site mapping to confirm the structure’s age, alignment, and purpose before announcing their findings to the public. The timing of the announcement, just days before this year’s summer solstice on Sunday, puts a new perspective on the annual celebration that brings druids, pagans, and tourists from across the globe to Stonehenge to mark the longest day of the Northern Hemisphere.

    Stonehenge, one of the United Kingdom’s most recognizable cultural symbols and top tourist attractions, is a UNESCO World Heritage Site constructed in stages beginning around 5,000 years ago, with its famous circular stone arrangement erected around 2500 BCE. For decades, scholars have debated the original purpose of the monument. The most widely accepted theory holds that it was a sacred temple intentionally aligned to track the sun’s movement through the annual solar cycle. Other competing theories put forward over the years range from claims it was a coronation site for early Danish kings, a prehistoric healing cult center, a druid ritual site, or even an early astronomical computer capable of predicting solar eclipses and other celestial events.

    This new discovery sheds fresh light on the long history of solar ritual practice in the region, showing that Neolithic communities were marking the solstices at the same landscape long before Stonehenge took its current form. As thousands of visitors prepare to gather at Stonehenge to watch the summer solstice sunrise this Sunday, Harding noted that the tradition stretches back far further than many realize. “What few will realize is that 5,000 years ago on a nearby hillside overlooking modern day Bulford, people were doing the exact same thing — revering and celebrating the sunrise on Midsummer’s Day,” he said.

  • Ancient teeth from Siberia rewrite the plague’s timeline, dating back to over 5,500 years ago

    Ancient teeth from Siberia rewrite the plague’s timeline, dating back to over 5,500 years ago

    NEW YORK – A groundbreaking international study has pushed back the earliest confirmed evidence of human plague infection by more than 200 years, uncovering pathogen DNA in 5,500-year-old human remains recovered from ancient cemeteries near Siberia’s Lake Baikal. The discovery upends previous timelines for the origins of one of humanity’s deadliest diseases, which has shaped global population history for millennia. The team of genetic researchers published their findings Wednesday in the peer-reviewed journal *Nature*.