With the Falcon 9 rocket set to fly again, and testing of the Starliner capsule progressing, the agency is seeking to turn the page on a brief, troubled chapter in orbit.
In the era when people traveled by sailing ship and steamer, illnesses usually burned themselves out before boats reached shore, a new study finds.
The rock, studied by NASA’s Perseverance rover, has been closely analyzed by scientists on Earth who say that nonmicrobial processes could also explain its features.
Old recordings show captive chimps uttering the word, which some scientists believe may offer clues to the origins of human speech.
A.I. is getting good at math — and might soon make a worthy collaborator for humans.
ShadowCam, a NASA instrument aboard a South Korean spacecraft, is taking pictures of the moon where the sun doesn’t shine.
Scientists found an unexpected aging pattern in a mostly intact juvenile mammal skeleton from the paleontological period.
Researchers have confirmed the presence of cocaine in sharks off the coast of Rio de Janeiro, though questions remain about the effects of the drug.
“The Secret Lives of Numbers,” by Kate Kitagawa and Timothy Revell, highlights overlooked contributions to the field by ancient thinkers, non-Westerners and women.
Singapore, which subsists on imported food, is looking to secure its future with new ways of feeding its people.
An examination of an aquatic, shrimplike creature that lived half a billion years ago offers insight into how arthropods with mandibles became so common.
A.I.’s math problem reflects how much the new technology is a break with computing’s past.
The screenwriters of “Fly Me to the Moon” say they emphasized the facts of the Apollo 11 landing, but experts worry that clips can be misused.
In a new memoir, the marine biologist Jasmin Graham reflects on her passion for studying sharks and the barriers she refused to let stop her.
While the volcano’s eruption was deadly, research shows that many people in the ancient Roman city died in building collapses from the earthquake associated with the outburst.
Delays and concerns about NASA’s future budgets doomed the VIPER mission, which aimed to search for ice near the moon’s south pole.
Asian honeybees protect their hives by making insect intruders go airborne.
It’s not easy being green, golden and male, according to a researcher’s observation of attempted frog cannibalism in Australia.
NASA sent the song “The Rain (Supa Dupa Fly)” from a radio dish in California last week. It took 14 minutes to travel the 158 million miles.
Glyphs and pictographs at a site in Texas represent generations of settlement by Indigenous peoples.
A Swedish biochemist, he shared the 1982 prize for breakthrough discoveries that led to drugs that treat inflammation, glaucoma and allergies.
Scientists could never explain how this fossil might have been a jellyfish. Then they flipped it on its head and discovered another animal.
As a science reporter, Katrina Miller covers the cosmos, innovations in physics, space exploration and more.
Los empleados de SpaceX trabajan en el diseño de una ciudad marciana, con cúpulas y trajes espaciales, e investigan si los humanos pueden procrear fuera de la Tierra. Musk ha ofrecido voluntariamente su esperma.
The cases, which have yet to be confirmed, were identified in farmworkers culling infected birds. The risk to the public remains low, health officials said.
The second stage of a SpaceX Falcon 9 rocket failed on an attempt to deploy the company’s Starlink internet satellites, ending a streak of more than 300 successful Falcon 9 launches.
The malfunction, the first since 2016, ended a streak of more than 300 successful launches for the Falcon 9 rocket.
For the 25th anniversary of the Chandra X-ray Observatory, NASA produced ghostly time-lapse videos of two centuries-old stellar eruptions.
Transistors on the Europa Clipper spacecraft, scheduled to launch in October, may not be able to endure the harsh radiation around the planet Jupiter.
Scientists have found evidence of several waves of migration by looking at the genetic signatures of human interbreeding with Neanderthals.
A “fossil chromosome” preserves the structure of a woolly mammoth’s genome — and offers a better grasp of how it once worked.
The deposit, in Zambia, could make billions for Silicon Valley, provide minerals for the energy transition and help the United States in its rivalry with China.
SpaceX employees are working on designs for a Martian city, including dome habitats and spacesuits, and researching whether humans can procreate off Earth. Mr. Musk has volunteered his sperm.
La investigación, que se basa en trabajos anteriores, podría dar lugar a una herramienta de diagnóstico más objetiva.
In a news conference from aboard the International Space Station, Butch Wilmore and Suni Williams said they had confidence in the troubled spacecraft to get them home.
In books and articles he wrote about the militarization of space and believed that investing in exploration would ultimately “protect Earth and guarantee the survival of humanity.”
A leading biochemist, she helped shape guidelines in the 1970s for genetic-engineering while calming public fears of a spread of deadly lab-made microbes.
Discovering evidence of deadly deluges of snow from the past could help protect people on mountains around the world, researchers say.
Using ground-based radars, he pioneered measurement techniques that scientists now use to chart geographical changes on Earth.
Ariane 6 reached orbit on Tuesday. But a problem made the European Space Agency rocket deviate from its flight plan late in the mission.
After thousands of sequoias were destroyed by extreme wildfires, tribes are conducting cultural burns.
La expansión de SpaceX en el sur de Texas ha dañado el medio ambiente y violado acuerdos iniciales, afectando tierras protegidas y a la fauna local.
The research, which builds on previous work, eventually may lead to a more objective diagnostic tool, scientists said.
More than 100 million years ago, scientists say, warming seas and reduced oxygen may have sent some sharks higher into the water column, where they evolved to be fierce and hungry.
The development of Elon Musk’s facility in South Texas did not play out as local officials were originally told it would.
A New York Times investigation found that Elon Musk exploited federal agencies’ competing missions to achieve his goals for space travel.
On at least 19 occasions since 2019, SpaceX’s operations have caused fires, leaks and explosions near its launch site in Boca Chica, Texas. These incidents reflect a broader debate over how to balance technological and economic progress against pr...
Matemáticos y aficionados llevan medio siglo explorando los 43 trillones de posibles combinaciones de la creación de Erno Rubik.
A former national security adviser says Washington “must test new nuclear weapons for reliability and safety in the real world,” while critics say the move could incite a global arms race that heightens the risk of war.
Scientists used techniques from the field of gravitational wave astronomy to argue that the Antikythera mechanism contained a lunar calendar.
El planeta gira alrededor del Sol en una elipse, en lugar de un círculo. El viernes, el planeta alcanzará el punto más alejado de su estrella conocido como afelio.
Our planet whirls around the sun in an ellipse, rather than a circle. On Friday the planet reached its farthest point from its star, known as aphelion.
A new study that reviewed Billboard hits from the past 73 years found a steady simplification of rhythm and pitch.
He found that a failed contraceptive, tamoxifen, could block the growth of cancer cells, opening up a whole new class of treatment.
An ancient aquatic predator resembling a giant salamander turned up in an African fossil deposit, suggesting unwritten chapters of how animals moved onto land.
A trove of animal bone fragments from a cave on the Tibetan plateau reveals how Denisovans thrived in a harsh climate for over 100,000 years.
This isn’t how the new era of space was billed.
Biden administration officials hope the money will help propel technological innovation in areas that have historically received less government funding.
The insects seem to know which injuries to treat as they engage in a behavior that seems almost human.
Plus, NASA says astronauts aren’t stuck in space.
An object found on a hiking trail west of Asheville, N.C., had traveled to the International Space Station, the space agency said.
Mathematicians and hobbyists have had a half-century of fun exploring the 43 billion billion permutations of Erno Rubik’s creation.
The commercial company Space Pioneer said the accident occurred because of a structural failure in the connection between the rocket and its testing platform.
She developed one of the first modern intensive care units for premature babies, helping newborns to breathe with lifesaving new treatments.
Researchers at the University of Tokyo published findings on a method of attaching artificial skin to robot faces to protect machinery and mimic human expressiveness.
Pets were once dismissed as trivial scientific subjects. Today, companion animal science is hot.
By analyzing dog bones buried at the site, scientists found butcher marks and surprising breeds.
Butch Wilmore and Suni Williams will spend additional weeks in orbit as teams on the ground study malfunctioning thrusters on the Starliner spacecraft.
Stress, ovarian cancer, buoyancy disorders: Every pet has its troubles, and needs a good doctor who makes house calls.
A fossil bed in the High Atlas Mountains of Morocco is allowing new insights into the anatomies of arthropods that lived a half-billion years ago.
The cause of the incident, which added to a growing amount of dangerous space junk in low Earth orbit, remains unknown.
El más pequeño de los dos fue avistado este mes y podría ser visible con binoculares cuando pase cerca de nuestro planeta, a poca distancia de la Luna.
The species survived on an island north of Siberia for thousands of years, scientists reported, but were most likely plagued by genetic abnormalities.
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.