At an international conference, researchers at the forefront of animal-human transplantation compared notes and allowed themselves the first real optimism in decades.
Astronomers identified more than 3,000 stars associated with the cluster, and there might be even more.
The night skies across the United States lit up as fast-moving charged particles from the sun slammed into the Earth’s atmosphere.
Dr. Richard Pazdur, who has been the F.D.A.’s top cancer drug regulator, represents a stabilizing choice for an agency reeling under staff cuts and low morale.
The brilliant iridescent hues found in ammolite come from tiny air gaps in the fossils’ layers, a new study finds.
Los laboratorios de longevidad, las “islas de la inmortalidad” y pastillas de semillas de uva forman parte del proyecto chino para vencer al envejecimiento.
Soft batteries and water-walking robots are among the many creations made possible by studying animals and plants.
This will be the second flight of the orbital rocket from Jeff Bezos’s space company and will include a key test of whether it can land a booster stage for later reuse.
He developed extracorporeal membrane oxygenation, or ECMO, a treatment that can sustain patients whose hearts and lungs are failing — for days or weeks or longer.
A pitch-black cave in the Balkans is home to what researchers say is a singular work of cooperation by two usually-hostile species of spider.
Scientists who study comets are struggling to keep up with popular speculation that the interstellar object 3I/ATLAS was sent to our solar system by an alien intelligence.
Longevity labs, “immortality islands” and grapeseed pills are part of China’s national project to conquer aging, despite sometimes shaky science and extravagant claims.
“The laws of inheritance are quite unknown,” Charles Darwin acknowledged in 1859. The discovery of DNA’s shape altered how we conceived of life itself.
His decoding the blueprint for life with Francis H.C. Crick made him one of the most important scientists of the 20th century. He wrote a celebrated memoir and later ignited an uproar with racist views.
Extraterrestrial particles found at the bottom of the Arctic Ocean could unlock at least 30,000 years of sea ice history, a new study finds.
Lab-grown “reductionist replicas” of the human brain are helping scientists understand fetal development and cognitive disorders, including autism. But ethical questions loom.
A strong geomagnetic storm is expected to push the often-magical light display farther south than usual.
“This is a type of science that has an impact that most people could see in their homes,” said Erin Hecht, a canine researcher at Harvard. “Now there’s just no money.”
Using a new computer model, scientists simulated the stripes, spots and hexagons on a species of boxfish, imperfections and all.
In “The Great Math War,” Jason Socrates Bardi takes on a battle for the soul of numbers that divided the experts of its day.
Un astrónomo japonés captó un par de objetos chocando contra la superficie lunar en los últimos días.
Reptiles on a Mexican island were considered an invasive species, but DNA evidence proves they beat humans to the island by hundreds of thousands of years.
A Japanese astronomer captured a pair of objects slamming into the moon in recent days.
A writer returns to his native Australian island, where seeing the aurora takes more work than in the north, home of mass-market lights tourism. But the awe is the same.
The country’s space authorities said they were investigating whether an object had hit the Chinese space station and the risks tied to it.
Mr. Brady became the latest celebrity to try to preserve a pet’s genetics, a move that animal rights groups have criticized.
The nomination of the billionaire entrepreneur, private astronaut and Elon Musk ally was before the floor of the Senate when the president abruptly withdrew it in June.
The rise of artificial intelligence has produced serial writers to science and medical journals, most likely using chatbots to boost the number of citations they’ve published.
In 1865, two dozen Union soldiers, all formerly enslaved, were ambushed and killed along a road in Kentucky. Archaeologists are still searching for their remains.
Una manada de orcas del golfo de California ha cazado repetidamente tiburones blancos juveniles para darse un festín con sus hígados.
The consumer products giant reached a $40 billion deal to buy Kenvue, the maker of Tylenol, despite a barrage of unproven claims from President Trump and others that use of the pain reliever during pregnancy can cause autism.
A pod of orcas in the Gulf of California has repeatedly hunted juvenile white sharks to feast on their livers.
Why the challenge of truly representative democracy is so complex.
In experiments, researchers showed that the disease-spreading insects couldn’t resist the sweet smell of a fungus that infected and killed them.
As NASA worries that China will win the next moon race, Elon Musk and his company tangled with critics.
Though the country’s nuclear arsenal has undergone no explosive testing for decades, federal experts say it can reliably obliterate targets halfway around the globe.
Did certain small tyrannosaur fossils belong to “teen rex” or another species? New analysis of a recent fossil appears to have settled the debate.
Jay Falk explored a fundamental question: How do genes give rise to different bodies? But without funding, “there’s not really a future here.”
Six species of North American bats emit a glow at almost identical wavelengths, according to a recent study.
Tons of toxic German munitions, dumped in the Baltic and North Seas after World War II, have become an unlikely refuge for marine life, a new study has found.
The agency announced moves to cut regulatory obstacles for the makers of biosimilar drugs, which are akin to generics and may help lower drug costs.
Scientists offer a new idea for why orb-weaving arachnids add decorations known as stabilimenta to their webs.
A gene that helped bowheads adapt to frigid Arctic waters also granted them extraordinary longevity. Could it help aging humans become more resilient?
The Trump administration is considering tighter safety rules on the weak radiations of cellphones even as it pursues looser regulations on the deadly emanations of the nuclear industry.
In Milan, bones that piled under a hospital over a half-century shed light on the health and habits of some of the Renaissance era’s most impoverished people.
Anti-vaccine sentiment is spilling over into veterinary medicine, making some owners hesitant to vaccinate their pets, even for fatal diseases like rabies.
Vaccine hesitancy is on the rise among pet owners. Here are answers to some common questions about animal vaccines.
Skulls displayed in public 2,000 years ago were intended as a warning to enemies and a celebration of comrades, a new paper argues.
The recalled wipes were distributed in Florida, Georgia, South Carolina and Texas, according to the Food and Drug Administration.
Three photographers were able to capture the red sprite phenomenon, when lightning flashes above thunderstorms, in high definition against the Milky Way.
The billionaire’s swipes at Sean Duffy are the latest example of his tangling with members of the Trump administration.
A pair of Edmontosaurus specimens found in a Wyoming dig help researchers to understand the process that led them to be mummified.
Elkhorn and staghorn coral are now functionally extinct around the state, researchers say, meaning they no longer play any significant role in their ecosystem.
A trove of specimens from New Mexico may help settle a long-running argument about the diversity of dinosaurs before their extinction.
High-speed video helped researchers to get close-ups of the attack strategies of three snake families.
By studying how worms use electric charge to jump onto flies, scientists are showing even physical strategies are embedded in evolution.
Cards Against Humanity had accused Elon Musk’s company of squatting on land that it owns near the southern border in Texas.
Researchers found more than a hundred lizards of nearly 60 species that survived losing a limb, with some even seeming to thrive.
Blue Origin, owned by Jeff Bezos, and Lockheed Martin are among the contractors that may compete with Elon Musk’s company in the race back to the lunar surface.
The shower is produced by Halley’s comet’s debris, and could offer strong viewing opportunities because the moon is new this week.
He led a team of scientists who helped confirm that a Big Bang was the source of the universe. The discovery earned him a Nobel Prize.
If Oktoberfest brings links to your plate, there’s more to know about the meat- and vegetable-based casings they’re stuffed into.
Two years after Otter 841 menaced wave riders near Santa Cruz, there have been new encounters between the furry marine mammals and surfers.
He and a colleague, Tsung-Dao Lee, created a sensation in 1956 by proposing that one of the four forces of nature might violate a law of physics.
Two distantly related groups of mushrooms take radically different routes to producing psilocybin, a mind-bending molecule.
Conservation biologists propose a daunting task: protecting Earth’s diversity of bacteria and other microbes.
Starfront Observatories allows amateur astronomers to rent a spot for their telescopes and photograph the cosmos over a high-speed data connection.
His willingness to bring scientific rigor to Sasquatch studies earned him the gratitude of enthusiasts and the withering scorn of debunkers.
Joshua Plotnik worked to prevent deadly encounters between people and elephants. Then the funding froze.
Jim Sanborn planned to auction off the solution to Kryptos, the puzzle he sculpted for the intelligence agency’s headquarters. Two fans of the work then discovered the solution.
Photos taken by blackwater divers offered a new glimpse into the early life stages of marine fishes and their interactions with other animals.
A new exhibition at the Bruce Museum in Greenwich, Conn., gives visitors a whiff, from “chocolate-y” to stinky blue cheese.
A statistical analysis of an infamous indentation in a sidewalk suggested a 99 percent likelihood that another rodent made the mark.
Giving up on mRNA is a dangerous decision.
The agency narrowed who can get the shot and added new study requirements that could cost the company tens of millions.
As China and the United States trade charges of a lab leak, researchers contend in a new paper that the Covid pandemic got its start, like a previous one, in the wildlife trade.
The White House has thrown its weight behind the lab leak theory, an idea that has divided intelligence agencies.
With little post-pandemic recovery, experts wonder if screen time and school absence are among the causes.
On the test, American fourth and eighth graders posted results similar to scores from 1995. It was a sign of notable stagnation, even as other countries saw improvements.
Robert F. Kennedy Jr. and other candidates for top health posts are at odds with the drug industry, setting the stage for tense battles over regulatory changes.
Covid learning loss and chronic absenteeism aren’t going to fix themselves
Dr. Fauci testified before a House panel investigating Covid’s origins. The panel found emails suggesting that his aides were skirting public records laws.
A scientist finds beauty in the “visual synonyms” that exist in images seen through microscopes and telescopes.
A long-awaited new policy broadens the type of regulated viruses, bacteria, fungi and toxins, including those that could threaten crops and livestock.
A heated hearing produced no new evidence that Peter Daszak or his nonprofit, EcoHealth Alliance, were implicated in the Covid outbreak.
Prosecutors said Keith Berman falsely claimed he had invented a blood test that could detect Covid-19 in 15 seconds. His lawyer said he had put “genuine effort” into developing such a test.
Los científicos que estudian la evolución continua del virus y las respuestas inmunitarias del organismo esperan evitar un rebrote y comprender mejor la covid prolongada.
Scientists studying the virus’s continuing evolution, and the body’s immune responses, hope to head off a resurgence and to better understand long Covid.
A new study of camera-trap images complicates the idea that all wildlife thrived during the Covid lockdowns.
In the Panamanian rainforest, scientists found the first known plant species to transform decaying tissue into a new source of nutrients.
Newly released documents indicate that a U.S. genetic database had received the sequence of the coronavirus two weeks before it was made public by others.
The dominant variant of the coronavirus has proved to be not only staggeringly infectious, but an evolutionary marvel.
Scientists doing “gain-of-function” research said that heightened fears of lab leaks are stalling studies that could thwart the next pandemic virus.
High-security labs, like this one at Penn State, are at the center of a debate over research that alters viruses to make them more dangerous.
Schools run by the Defense Department educate 66,000 children of civilian employees and service members.
Let’s bring back an era of accountability.
Despite billions in federal aid, students are not making up ground in reading and math: “We are actually seeing evidence of backsliding.”
The results are the federal government’s last major data release on the academic effects of the coronavirus pandemic.
Strict pandemic lockdowns may have allowed animals to range more widely and spend time closer to roads, a new study suggests.
Pandemic aid was supposed to help students recover from learning loss, but results have been mixed.
Tokophobia, as it’s called, is not often studied in the United States. But a new survey finds that it may be very common, particularly among Black women and in disadvantaged communities.
Lab safety doesn’t need to torpedo scientific progress.
The latest test results continue a nearly decade-long decline. Try a sample quiz to test your knowledge.
After analyzing genetic data swabbed from a Wuhan market in early 2020, a virologist said it was unclear if animals for sale there had been infected.
Leaders on the continent have vowed that if there is another pandemic, they won’t be shut out of the vaccine market.
Scientists from the Chinese C.D.C. confirmed that DNA from raccoon dogs and other animals susceptible to the coronavirus was found at the market in early 2020.
In a much-anticipated study, experts described a swab that was positive for the coronavirus and contained loads of genetic material from raccoon dogs.
Genetic samples from the market were recently uploaded to an international database and then removed after scientists asked China about them.
Some medications, like Ritalin and Vicodin, would require an in-person doctor’s visit under the new rules, a reaction to the pandemic-era rise of telemedicine.
Moderna has paid $400 million to the government for a chemical technique key to its vaccine. But the parties are still locked in a high-stakes dispute over a different patent.
Kizzmekia Corbett helped lead a team of scientists contributing to one of the most stunning achievements in the history of immunizations: a highly effective, easily manufactured vaccine against Covid-19.
Readers discuss experimentation on lab animals. Also: Racism in America; preparing for the next pandemic; maternal deaths; Amazon’s donations.
The White House will decide whether to adopt the panel’s recommendations on so-called gain of function experiments.
An internal federal watchdog said that the health agency had not given adequate oversight to EcoHealth Alliance, which had been awarded $8 million in grants.
A young version of the coronavirus makes up one-quarter of Covid cases across the United States and over 70 percent of new cases in the Northeast.
Plus China’s vaccination pivot and the year’s most stylish “people.”
Plus, China’s sluggish economy and the arrest of the Lockerbie bombing suspect.
Al cumplirse el aniversario del descubrimiento de la variante, los expertos en virología siguen intentando ponerse al día con la rápida transformación de ómicron.
One year after the variant’s discovery, virologists are still scrambling to keep up with Omicron’s rapid evolution.
Students missed a lot of high school instruction. Now many are behind, especially in math, and getting that degree could be harder.
In a vacuum, test score declines look like bad news. But none of this happened in a vacuum.
The report, signed by Senator Richard Burr, foreshadows a new wave of political wrangling over Covid’s origins if Republicans gain control of the House or Senate.
The results, from what is known as the nation’s report card, offer the most definitive picture yet of the pandemic’s devastating impact on students.
Mouse experiments at Boston University have spotlighted an ambiguous U.S. policy for research on potentially dangerous pathogens.
Benjamin Franklin Elementary in Connecticut overhauled the way it taught — and the way it ran the classroom. Every minute counted.
Readers respond to the latest Russian attacks in Ukraine. Also: The wonders of math; pandemic spending; Republicans and crime.
Maitland Jones, un profesor respetado, defendió sus estándares. Pero los estudiantes hicieron un reclamo y la universidad lo despidió.
Maitland Jones Jr., a respected professor, defended his standards. But students started a petition, and the university dismissed him.
The first standardized test results that capture how most city schoolchildren did during the pandemic offered a mixed picture.
La decimotercera variante con nombre del coronavirus parece tener una capacidad sorprendente para evolucionar con nuevas particularidades.
Omicron, the 13th named variant of the coronavirus, seems to have a remarkable capacity to evolve new tricks.
Many employees reduce their hours or stop working to help ailing family members. But it may be years before they fully return to the work force, studies indicate.
The results of a national test showed just how devastating the last two years have been for 9-year-old schoolchildren, especially the most vulnerable.
Urgently needed: teachers in struggling districts, certified in math or special education. Perks: maybe a pay raise, or how about a four-day week?
Here’s how a scrappy team of scientists, public health experts and plumbers is embracing wastewater surveillance as the future of disease tracking.
El coronavirus, como muchos otros virus, evoluciona deprisa. ¿Los seres humanos y su ingenio podrían adaptarse más rápido a él?
Human ingenuity must keep up with the coronavirus.
The papers, which have not yet been published in scientific journals, suggest that testing just a single type of sample is likely to miss a large share of infections.
A new report estimates that it may take students at least three to five years to recover from the pandemic. Federal relief money will most likely have run out by then.
Covid precautions created a global slowdown in human activity — and an opportunity to learn more about the complex ways we affect other species.
Working in a laboratory in Paris, scientists gave a close relative of the Covid virus the chance to evolve to be more like its cousin.
Pandemic shutdowns and restrictions led to a 20 percent drop in average daily physical activity among children and adolescents, a new analysis shows.
The vaccine has not yet been authorized but is expected to be soon.
The myxoma virus, fatal to millions of Australian rabbits, is a textbook example of the unexpected twists in the evolution of viruses and their hosts.
Officials have also been trying to determine whether the cases represent a new phenomenon or are simply a new recognition of one that has long existed; there have always been a subset of pediatric hepatitis cases with no clear cause.
“The lack of political cooperation from China continues to stifle any meaningful progress,” one expert said.
In his essay collection “Virology,” Joseph Osmundson examines the myriad ways we coexist with viruses.
The spread of the subvariants adds more uncertainty to the trajectory of the pandemic in the United States.
Ravindra Gupta, who led the efforts that resulted in the second case of a patient being cured of H.I.V., was drawn into pandemic research.
