NYT science news

Each September, the ice at the top of the world hits its lowest extent of the year. Researchers are studying how a warming climate is affecting a not-so-frozen ocean.

Low-income people who wrongly lost Medicaid or Children’s Health Insurance Program coverage will keep their insurance, federal officials said.

This year’s awards were given to scientists who helped doctors see the retina and used artificial intelligence to predict the shapes of cellular proteins.

Community health workers put in long hours to protect people in developing countries from diseases such as malaria, Covid-19 and H.I.V. But most are compensated minimally, or not paid at all.

In experiments under his microscope at home, a teenage researcher discovered a very unusual talent in a species of tiny insect that usually lays eggs on the inside of a tough plant growth.

Last week, Frank Rubio broke the record for the longest continuous spaceflight by a U.S. astronaut. He was supposed to be away for only six months.

Thousands of people from around the world responded to the invitation, sharing their sightings with scientists at the Cornell Lab of Ornithology.

Scientists have unearthed logs in Africa that are nearly a half-million years old, the remnants of large wooden structures crafted by our early ancestors.

In the United States, smoke from wildfires is undoing progress from the Clean Air Act. In poorer countries, the situation is even worse.

As oceans warm, pathogenic bacteria are turning up more frequently in northern regions, scientists say.

Language was long understood as a human-only affair. New research suggests that isn’t so.

On Block Island, a tiny dot off the New England coast, birders and other nature lovers can find beauty and solitude in 2,500 acres of ponds, dunes and marshes.

An unapproved product made from umbilical cord blood was used at a prominent New York hospital. After an F.D.A. warning came an internal complaint: Patients should have been told.

Preservationists such as Robert D. Ballard have long clashed with salvors such as Paul-Henri Nargeolet, who died in June on the Titan submersible. Is a third way possible?

Australian researchers said the colorful gems of the Argyle mine, which produced more than 90 percent of the world’s pink stones, may have erupted when a supercontinent split.

Researchers propose that placozoans, one of the simplest kinds of animals, may contain the blueprint for the neurons of more complex creatures.

New genetic research confirms the oral history of a small group of nomadic people living in Indonesia’s rainforest.

Researchers discovered that a particular brand of paint favored by the Spanish artist had an atomic structure that predisposed it to degradation.

In a new report, scientists offer a list of measurable qualities that might indicate the presence of some presence in a machine.

Ahead of U.N. meetings this week, thousands are marching through Midtown to demand that President Biden and other world leaders stop new oil and gas drilling.