El presidente electo Donald Trump se unió a Elon Musk en el sexto vuelo de prueba del prototipo del cohete de su empresa que podría llevar personas a la Luna, o incluso a Marte.
The U.S. Food and Drug Administration issued a warning letter, but not a recall, after microorganisms were found in water samples and finished toothpaste products.
A second Trump administration could alter the lives of all sorts of animals, whether they live in laboratories, zoos, fields or forests.
President-elect Donald Trump joined Elon Musk in Texas and watched the launch from a nearby location on Tuesday. While the Starship’s giant booster stage was unable to repeat a “chopsticks” landing, the vehicle’s upper stage successfully splashed ...
Journals had retracted papers on superconductors that worked at room temperature and materials science that involved Ranga Dias.
The giant booster stage of the prototype moon and Mars rocket was unable to repeat a “chopsticks” landing, but the vehicle’s upper stage made a successful controlled splashdown in the Indian Ocean.
As the glaciers of South America retreat, the supply of freshwater is dwindling and its quality is getting worse.
The Homotherium cub was preserved in Siberian permafrost with its dark fur and flesh intact.
President Biden pledged financial help to protect the Amazon during a visit to Brazil, making one final push to combat climate change before the end of his term.
For a century, exoplanet hunters have “discovered” planets around a nearby star, only to retract the claims. But the latest find is for real.
At Dartmouth, long before the days of laptops and smartphones, he worked to give more students access to computers. That work helped propel generations into a new world.
Este fenómeno produce algunos de los meteoros más rápidos del año, aunque la luna casi llena puede dificultar su observación.
The event produces some of the year’s fastest meteors, although the nearly full moon may make them challenging to spot.
Fifty years ago, the famed Arecibo message was fired into space to make contact with intelligent extraterrestrials. Now is the time to try again.
Behind the scenes at a Chicago zoo, chimpanzees who spent years entertaining humans are learning to befriend their own kind.
The agency’s top medical official was responding to rumors that Suni Williams had lost an unusual amount of weight during an extended stay in orbit.
The National Museum of Mathematics in New York is expected to open a 34,363-square-foot building in 2026.
A researcher thinks he knows what has been coming ashore on miles of beaches. Canada’s environmental agency says it is still looking into it.
Ball pythons were long assumed to be solitary, but scientists discovered the snakes in captivity prefer each others’ company when given the chance to live socially.
“The Impossible Man,” by Patchen Barss, depicts the British mathematical physicist and Nobelist Sir Roger Penrose in all his iconoclastic complexity.
A study of Gila monster venom helped start the revolution in weight-loss drugs. But scientists think that’s just the beginning.
It took nearly 25 years for biologists to discover that a swimming and glowing organism in the ocean’s midnight zone was actually a sea slug.
No one saw a Mekong giant salmon carp for 15 years, but then the species was spotted in areas of Cambodia that suggest it may be found in more locations.
In “Four Points of the Compass,” Jerry Brotton explores the disorienting, dizzying history of our relationship to direction.
Gran parte de los conocimientos sobre el séptimo planeta proceden de un breve sobrevuelo realizado hace casi 40 años, que ahora los investigadores afirman que coincidió con un acontecimiento solar excepcional.
Much of the understanding of the seventh planet comes from a brief flyby nearly 40 years ago, which researchers now say overlapped with an exceptional solar event.
In the Berlin Zoo, Mary demonstrated another example of clever elephantine tool use while another animal exhibited a form of mischief with a hose that resembled a prank.
A basilica from the 4th century held a surprising number of tombs with women and children, researchers found.
The retired research chimpanzees, which had previously been deemed too frail to move, will be relocated to a Louisiana sanctuary.
Dozens of rhesus macaques escaped a research facility in South Carolina. They’re still on the lam.
In 79 A.D., a volcanic eruption engulfed a town’s residents. They weren’t all who scientists thought, newly extracted genetic material suggests.
Para comprobar que estos mamíferos son capaces de descomponer aminoácidos para obtener energía, un equipo de investigadores realizó un experimento que incluyó sangre, vacas y una cinta de correr en miniatura.
Scientists put the bloodsucking mammals on a treadmill to understand how they get the energy to chase down their next meal.
Scientists in Japan constructed the first satellite made of wood by blending age-old woodworking techniques with rocket science.
Scientists dug up the real dirt on the substance applied to all the baseballs used in the major leagues.
This short trivia quiz tests your knowledge of fiction and nonfiction works that were made into popular films about space exploration and the quest to connect with other worlds.
In Colombia, a fossil-collecting rancher has found a giant, flightless killer from 13 million years ago — and a missing link to the region’s evolutionary history.
Most of the universe is made of nothingness. That realization should make us feel empowered, not frightened.
He worked alongside another doctor to show that a simple rehydration therapy could check the ravages of cholera and other diarrhea-inducing diseases.
Museums are adding scents as another tool for communicating information about science and other subjects in their exhibits.
Iran fired two of the largest barrages of ballistic missiles ever at Israel this year. Even the world’s best defenses don’t always stop them.
A team recently dived deep beneath Lake Huron hoping to harvest grain that may one day be distilled into whiskey with a flavor forgotten to history.
The hunt for dark matter is shifting from particles to waves named after a laundry detergent.
The sticky, slimy goo plays an essential role in fighting off infections, shaping the gut microbiome and more.
The ghosts of stars are up to their usual mischief.
A 161 million-year-old fossil, linked to a line of extinct frog-like amphibians, is the oldest tadpole ever found.
As chair of the White House’s National Space Council, the vice president largely emphasized continuity with policies set by the Trump administration.
Avances recientes en las ciencias de la Tierra sugieren que la forma de contar las mayores masas de tierra de nuestro planeta está menos clara de lo que aprendimos en la escuela.
Recent earth science developments suggest that how we count our planet’s largest land masses is less clear than we learned in school.
New research by geneticists hints at the deadly work of Yersinia pestis 5,000 years ago.
With a forthcoming nonfiction book and an online army of Nerdfighters, the young-adult author aims to eliminate an entirely curable global scourge.
A “toadlet” in Brazil is the second-smallest vertebrate known to exist on the planet.
A philosopher journeys into the world of comparative thanatology, which explores how animals of all kinds respond to death and dying.
Shyamala Gopalan Harris, la madre de la candidata presidencial, fue una investigadora del cáncer de mama cuya política igualitaria a menudo se oponía a la cultura patriarcal de los laboratorios.
The presidential candidate’s mother, Shyamala Gopalan Harris, was a breast cancer researcher whose egalitarian politics often bucked a patriarchal lab culture.
The brainy birds carry big chips on their shoulders, scientists say. And some people who become subjects of their ire may be victims of mistaken identity.
Forecasters will soon be able to use the instrument, a coronagraph, to better monitor the effects of solar storms.
With a new database of medical images, zoo and wildlife vets can finally see what healthy uncommon animals, from rhinos and tamarins to pangolins and sea stars, should look like on the inside.
He shared the 1972 physics prize for showing how some materials could convey electricity without resistance. He also did pioneering research in neuroscience.
Three NASA astronauts and a fourth from the Russian space agency returned to Earth from the International Space Station on Friday morning in a SpaceX capsule.
Fossils reveal that prehistoric cicadas’ wings evolved to help them evade hungry predators with feathers and beaks, scientists say.
Archaeologists in Norway have confirmed that an ancient set of human remains known as the Well Man were intended to make the locals unwell.
NASA and the U.S. Poet Laureate may not be obvious collaborators, but a Jupiter-bound mission helped them find common ground.
Unos astrónomos ofrecieron una nueva hipótesis sobre lo que creó los misteriosos pares de objetos similares a planetas llamados JuMBO, que algunos científicos dudan que existan en primer lugar.
His provocative research made him a popular figure on campus. But his exploration of how good people can turn evil raised ethical questions.
She lived to 28, roaming the Yellowstone area with her many offspring while becoming a favorite among both residents and visitors.
Astronomers offered a new hypothesis for what created pairs of objects nicknamed JuMBOs, while other scientists argue they may not really exist.
A documentary filmmaker and a mathematician discuss our fear of numbers and its civic costs.
The group of scientists and economists said they feared a Trump presidency would impede progress in science and technology and in fighting climate change.
Scientists say they have observed one of the highest-altitude acts of bird predation ever recorded.
The discovery suggests that trade routes along the Silk Road were far more complex than previously understood.
The leader of the long-running study said that the drugs did not improve mental health in children with gender distress and that the finding might be weaponized by opponents of the care.
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.
Readers discuss the Florida Department of Education’s objections to some of the topics in math textbooks. Also: The Ukraine war; mask mandates.