The New York Times Special News

Scientific meetings were canceled, and research data on the bird flu outbreak was delayed, amid confusion over the directive.

Libertarian and crypto allies of Ross Ulbricht, who was serving a life sentence for distributing drugs on his Silk Road website, leveraged President Trump’s desire for political support to secure his release.

The long structures seen in manta rays and their relatives function as an early warning system, rather than a defensive weapon.

Even as it faces economic setbacks of its own, the hospitality industry is stepping up to feed emergency workers and evacuees.

Humans are known to invent private hand gestures. Chimps in the wild do, too, a new study suggests.

Scientists suspect that contagious urination, a behavior they observed among a troop of apes in Japan, may play an important role in primate social life.

The Chinese social media app, popular in the United States a week after being flooded by TikTok users, has added language translation features.

TikTok’s cultural footprint in America is huge. Why is its disappearance being met with a shrug?

The positions of Robert F. Kennedy Jr. on vaccines and drug companies are well known. His approach to addiction has been far less scrutinized.

Robert F. Kennedy Jr. petitioned the F.D.A. to revoke authorization of the shots at a time when they were in high demand and considered life-saving.

While TikTok remains hugely popular in Brazil, Indonesia and other markets, its 170 million users in the United States are its most valuable.

With Trump back in town, owners are wondering how the dining scene will shape up.

The government is expected to pay lower prices for Ozempic and Wegovy starting in 2027. The Trump administration will decide whether to expand coverage for millions of Americans.

A new study reveals the surprising ways rattlesnakes have evolved to collect water in the desert.

Ahead of a potential ban of the app, The Times spoke to 11 prominent food content creators about what is at stake.

While Elon Musk’s spaceflight company repeated a spectacular catch of its powerful booster stage, the upper stage experienced a catastrophic malfunction.

At a small but growing subset of American breweries, a wave of obscure, foam-heavy Czech beers is swelling.

Although long considered a disease of aging, certain cancers are turning up more often in younger women, according to a new report.

The rocket successfully lifted off after the company’s first launch attempt was scrubbed. The flight is a crucial test of the company’s ability to compete with Elon Musk’s SpaceX.

A 28-year-old woman with a busy social life spends hours on end talking to her A.I. boyfriend for advice and consolation. And yes, they do have sex.

New York may be losing its identity as the city that doesn’t sleep, but the motley guests at Kellogg’s Diner show the spirit is still wide awake.

Analysis found that more than 64,000 Palestinians may have been killed by traumatic injury in the first nine months of the war.

Robotic vehicles from Firefly Aerospace of Texas and Ispace of Japan launched from the same SpaceX rocket early Wednesday and will soon part ways. Both are aiming for the lunar surface.

Regulators filed a lawsuit in federal court stemming from Mr. Musk’s $44 billion purchase of the social media company now called X.

With a tool often used in the study of dinosaur fossils, scientists uncovered new details in ornate tattoos on the skin of members of the Chancay culture of Peru.

No one ingredient can replace everything an egg can do in a recipe, but these easy replacements come close.

By 2060, new dementia cases per year could double to one million because of the growing population of older Americans, a study predicts.

On Monday night you may have a chance to witness the moon obscuring the Red Planet at its brightest, as well as a comet’s closest approach to the sun.

The maker of ChatGPT hopes to spur investment from the Middle East and avoid strict regulations on the development of new technologies.

Outbreaks among the unvaccinated are a predictable consequence of falling immunization rates. But even vaccinated adults may be vulnerable to some illnesses.

The flight, postponed more than hour into its launch window, is a crucial moment for the company’s vision for space, and a test of whether it may emerge as a serious competitor to Elon Musk and SpaceX.

Days into the new charges, some restaurant owners say suppliers are raising prices. Others are giving customer discounts, and many fear the fallout for workers.

If New Glenn lifts off overnight as planned, the Amazon founder’s rocket company will be on track to give Elon Musk’s SpaceX some genuine competition.

Scientists have identified a gene that causes production of a substance in some citrus that interferes with many medications.

After visiting President-elect Donald J. Trump in November, Mr. Zuckerberg decided to relax Meta’s speech policies. He asked a small team to carry out his goals within weeks. The repercussions are just beginning.

Adding crispy sheet-pan gnocchi makes for an easy, texturally delightful one-pan meal in this recipe from Melissa Clark.

Billions in advertising flows through TikTok, which could be banned in the U.S. as soon as Jan. 19. Brands and creators are racing to prepare.

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there.

The results of a new federal analysis were drawn from studies conducted in other countries, where drinking water contains more fluoride than in the United States.

It’s not causing panic! in the fossil record, but a 430-million-year-old mollusk discovery in Britain is a source of excitement for some scientists.

The surgeon general’s call to arms about the link between drinking and cancer could strike at a fiscal lifeline for restaurateurs facing falling sales.

The Mars Sample Return effort was billions of dollars over budget and not expected to return to Earth with its samples until 2040.

Variant Bio, a small biotech company based in Seattle, is using genetic information from Indigenous people to develop drugs for obesity and diabetes.

The social networking giant will stop using third-party fact checkers and instead rely on users to add notes to posts. It is likely to please President-elect Trump and his conservative allies.

Venomous snakes bite millions of people worldwide each year, killing at least 120,000. Many of them are poor people in rural areas of Africa without easy access to treatment.

Once confined to the five boroughs, the classic street snack has now gone fully nationwide.

But the report, on the experiences of 13 patients, found that the drug had no benefit for some people and that some who benefited said the improvement didn’t last.

Some older Americans have come to depend on virtual consultations with doctors, covered by Medicare. To keep that option in the future, Congress will have to act quickly.

Scientists say the snail darter, whose endangered species status delayed the building of a dam in Tennessee in the 1970s, is a genetic match of a different fish.

Modern religious leaders are experimenting with A.I. just as earlier generations examined radio, television and the internet.