The infectious disease epidemiologist who oversees the World Health Organization’s (WHO’s) program on emerging diseases and zoonoses began Sunday morning with a start: A researcher contacted her and said colleagues had uncovered crucial new data from China that speak to the origin of the pandemic. The researcher told Van Kerkhove—who was preparing to leave her home in Geneva for a...

Peanuts have a dark side. In some people, they can cause a dangerous and sometimes deadly allergic reaction marked by a sharp drop in body temperature and blood pressure, as well as difficulty breathing. This anaphylactic shock has typically been blamed on the immune system going into overdrive. But a new study in mice pegs an additional culprit: the nervous system ....

The number of high-containment labs studying the deadliest known pathogens is booming. A new analysis warns the growing number of labs is raising risks of an accidental release or misuse of germs such as the Ebola and Nipah viruses. “The more labs and people working with dangerous pathogens, the risks go up,” says biosecurity expert Filippa Lentzos of King’s College London,...

A scientific sleuth in France has identified previously undisclosed genetic data from a food market in Wuhan, China, that she and colleagues say support the theory that coronavirus-infected animals there triggered the COVID-19 pandemic. Several of the researchers presented their findings on Tuesday to the Scientific Advisory Group for the Origins of Novel Pathogens (SAGO), an expert group...

METEOROLOGY Intensity scale for atmospheric rivers reveals global hot spots Atmospheric rivers like those pummeling the West Coast now have a five-level intensity scale, which has enabled researchers to chart the global prevalence of these sinuous bands of storms . The scale, first developed in 2019 for the U.S. West Coast,...

Drug developers are now trying to target ceramides, which appear to contribute to a range of metabolic disorders

Facing tighter restrictions on access to key technologies and an increasingly competitive global scientific landscape, China has launched a major shake-up of its research organizations in pursuit of “self-reliance” in science and technology. The National People’s Congress last week approved a plan that will refocus China’s Ministry of Science and Technology (MOST) on key...

More than 2 years after an accident that caused a small and fleeting release of radiation, a research reactor that serves as a key source of neutrons for studying materials should soon be back online. On 9 March, the U.S. Nuclear Regulatory Commission (NRC) authorized officials at the National Institute of Standards and Technology (NIST) to restart the 54-year-old reactor in Gaithersburg,...

Few climate solutions come without downsides. “Green” hydrogen, made by using renewable energy to split water molecules, could power heavy vehicles and decarbonize industries such as steelmaking without spewing a whiff of carbon dioxide. But because the water-splitting machines, or electrolyzers, are designed to work with pure water, scaling up green hydrogen could exacerbate global...

Choked by a smog of sulfuric acid and scorched by temperatures hot enough to melt lead, the surface of Venus is sure to be lifeless. For decades, researchers also thought the planet itself was dead, capped by a thick, stagnant lid of crust and unaltered by active rifts or volcanoes. But hints of volcanism have mounted recently, and now comes the best one yet: direct evidence for an...

A new tool to fight the world’s deadliest animal—the malaria-carrying mosquito—may soon become more widely available. Yesterday, the World Health Organization (WHO) endorsed using a new kind of bed net treated with insecticides. It combines two chemicals to more effectively kill the mosquitoes that transmit the parasite that causes malaria, a disease that killed an estimated 619,000...

On 25 June 2021, as a blanket of hot air descended on the Pacific Northwest, British Columbia’s provincial government issued a news release warning about the approaching heat wave’s dangers. The announcement drew attention to the elderly, children, people working or exercising outdoors, pets, and “people with emotional or mental health issues whose judgment may be impaired.”...

The once widely held notion that humans fall into discrete races has led to geneticists drawing erroneous conclusions about the role of genes in shaping health and traits, and in some cases, to harmful discrimination against some groups. An expert committee is now urging an overhaul of this practice. Most notably, the committee’s report calls for researchers to scrap the term “race”...

Visitors to the National Academy of Sciences (NAS) in Washington, D.C., receive a clear reminder that, 3 years after the World Health Organization (WHO) declared COVID-19 a pandemic on 10 March 2020, it’s far from over. Before entering, they must show a guard proof that they have been vaccinated against COVID-19. Such demands were common around the world a year ago, with wide support...

After decades of living with often excruciating pain, Victoria Gray had to get used to a new sensation in recent years: waking up without it. “It may sound crazy, but I had to pinch myself to see was I still able to feel pain,” she says. Gray, a 37-year-old mother of four from Forest, Mississippi, who was born with sickle cell disease, arguably became the star of last...

Twirling and flying hand fans, catchy Lord of the Rings references, and 20 blue papier-mâché balloons. University of Oregon chemist Checkers Marshall put together that strange combination to create this year’s overall winning video in Science ’s long-running Dance Your Ph.D. contest . The use of fans, which represented electrons, was...

The Biden administration's fiscal year 2024 budget proposal, announced yesterday, aims to eliminate hepatitis C from the United States by creating a nationwide program to fight the disease. If funded by Congress, the 5-year, $11.3 billion program would expand testing, broaden access to powerful antiviral drugs, and boost awareness. “I can’t really recall a circumstance quite...

Hefting a potato-size rock, wild long-tailed macaques ( Macaca fascicularis ) in Thailand smash oil palm nuts on stone anvils. As they pound away, sharp flakes sometimes fly off from their hammer stones— flakes that are “almost indistinguishable” from stone tools made by early human relatives more than 3 million years ago , according...

Zebra mussels ( Dreissena polymorpha ) are one of the most catastrophic aquatic invasive species in North America. Native to Russia and Ukraine, these fingernail-size mollusks have spread around the world, often carried in ballast water—used to stabilize boats—as larvae, where they’ve caused billions of dollars of damage to fisheries, water treatment facilities, and...

The 2024 spending plan President Joe Biden unveiled today continues his administration’s pattern of asking for large increases at major U.S. research agencies. But as with all presidential budgets, Biden’s $6.8 trillion request is simply the starting point for negotiations with Congress over everything from taxes to countering China’s growing economic and...

ASTRONOMY Satellite swarms spoil Hubble’s view Images from the iconic Hubble Space Telescope are increasingly marred by the tracks of passing satellites in higher orbits , a threat that could balloon as companies vie to build “megaconstellations” for global internet services. The rocket company SpaceX has launched more...

Compassion fatigue will strike most who work with lab animals. But addressing it is challenging

Some scientists and legislators might have hoped this morning’s U.S. congressional hearing on the origin of the COVID-19 pandemic would move beyond partisan politics and seriously investigate what has become a deeply divisive debate . But members of the House of Representatives’s Select Subcommittee on the Coronavirus Pandemic mostly hammered home long-standing...

Humans have evolved to have some remarkable superpowers. People can thrive at high altitudes, dive for long periods underwater, and even tolerate a glass of lactose-rich milk well into adulthood. Now, a new study of Indigenous peoples from the Amazon rainforest reveals one more such adaptation: a genetic resistance to the endemic parasite responsible for deadly Chagas disease. The...

A long its 18,000 kilometers of coastline, China has been taken over by a green invader. Smooth cordgrass ( Spartina alterniflora ) grows tall and thick across tidal mudflats, depriving endangered migratory birds of habitat, clogging shipping channels, and ruining clam farms. Now, China aims to beat back 90% of the weed by 2025. “This is a mammoth undertaking,” says...

MUTARE, ZIMBABWE— Normally, the Murahwa Green Market here in this small city near the border with Mozambique bustles with welders, carpenters, and mechanics selling their services. But the market has been deathly quiet in recent weeks, as a prolonged drought has plunged Zimbabwe into a severe energy crisis. Water levels behind Zimbabwe’s main hydropower dam, which produces...

Brent Nakashook, an Inuit who lives in Cambridge Bay in the Canadian Arctic, doesn’t particularly trust the local weather reports. Several times, he has called off weekend trips to fish for char or hunt musk ox after seeing storms predicted—only to find the Sun shining. “You’ve just shot your whole weekend based on the forecast,” he says. The Arctic is warming faster...

When you come down with the flu, your body lets you know. You lose your appetite, you feel sluggish, and your mood takes a hit. The infection itself doesn’t cause these symptoms—your brain does. Now, scientists may have figured out a key part of how this happens. Studying mice with influenza, they found a cluster of nerve cells in the back of the throat that detects a...

Has the quest for room temperature superconductivity finally succeeded? Researchers at the University of Rochester (U of R), who previously were forced to retract a controversial claim of room temperature superconductivity at high pressures, are back with an even more spectacular claim. This week in Nature they report a new material that superconducts at room...

After 2 weeks of intense negotiations, countries agreed this week on a historic treaty to protect biodiversity in international waters. The agreement, announced on 4 March at the United Nations, sets up a legal process for establishing marine protected areas (MPAs), a key tool for protecting at least 30% of the ocean, which an intergovernmental convention recently set as a target for...

Nearly 5 years after a Chinese scientist sparked worldwide outrage by announcing he had helped create genetically edited babies, China has unveiled new rules aimed at preventing a repeat of such ethically problematic research on humans. Many researchers welcome the new regulations, which set requirements for ethics reviews of research involving humans and human materials such as...

On 6 February, the University of Lausanne (UNIL) told staff by email that prominent evolutionary biologist Laurent Keller was no longer employed there. The Swiss university and Keller both declined to explain why, and there is still no official word on the reason. But Science has learned that in the past 2 months, at least three former researchers in Keller’s department...

As neuroscientists struggle to demystify how the human brain converts what our eyes see into mental images, artificial intelligence (AI) has been getting better at mimicking that feat. A recent study , scheduled to be presented at an upcoming computer vision conference, demonstrates that AI can read brain scans and re-create largely realistic versions of images...

NARAYANGAON, INDIA— For nearly 30 years, the Giant Metrewave Radio Telescope (GMRT) here 200 kilometers east of Mumbai has listened for faint low-frequency radio signals emanating from the distant reaches of the cosmos. Its Y-shaped network of 30 antennas, each 45 meters wide, spreads over 25 square kilometers. The dishes have helped astronomers from dozens of nations study...

Habitat destruction, pesticide use, and other human impacts are often blamed for the well-documented decline of insects in recent decades. But even in forests where few humans tread, some bees and butterflies are declining, researchers have found. Over the past 15 years, populations of bees shrank 62.5% and those of butterflies dropped 57.6% in a forest in the U.S....

Habitat destruction, pesticide use, and other human impacts are often blamed for the well-documented decline of insects in recent decades. But even in forests where few humans tread, some bees and butterflies are declining, researchers have found. Over the past 15 years, populations of bees shrank 62.5% and those of butterflies dropped 57.6% in a forest in the U.S....

Among the predatory ants known as clonal raiders, worker ants called scouts track down the nests of other ant species, then recruit more workers to help steal that species’ young to be meals for their own colony (first video, below). But in at least one colony, those other workers have sprouted wings like queen ants and don’t budge from the comforts of their nest (second video,...

Among the predatory ants known as clonal raiders, worker ants called scouts track down the nests of other ant species, then recruit more workers to help steal that species’ young to be meals for their own colony (first video, below). But in at least one colony, those other workers have sprouted wings like queen ants and don’t budge from the comforts of their nest (second video,...

About 5300 years ago, people from the steppes of modern-day Russia and Ukraine expanded rapidly across Eurasia. Within a few centuries these “Yamnaya” left a lasting genetic mark on populations from central Europe to the Caspian Sea. Today, archaeologists call them “eastern cowboys” for their livestock herding and highly mobile lifestyle. But one part of...