NYT > Science

As they cling to leaf tips, newborn warty birch caterpillars produce vibrations that can ward off invaders approaching their millimeter-size domain.

After years of NASA and private crews returning to Earth near Florida, the company shifted its landing zone to the West Coast for the private Fram2 mission.

Mommy, a Western Santa Cruz tortoise, recently welcomed four hatchlings at the Philadelphia Zoo, where she has lived since 1932.

The 6,500-year-old weapons, found in a cave near Marfa, could be among the oldest near-complete set of wood and stone hunting tools found in North America.

Under microscopes, scientists found that giant single-cell organisms were able to vacuum up more food when they are stuck together.

Hundreds of hours of recordings suggest that the apes can generate meaning by stringing sounds together in pairs. But some scholars are skeptical.

New research painted a more accurate picture of the megafauna that spread widely around the Americas before they went extinct.

Before a discovery in a Panamanian rainforest, “it seemed impossible that lightning could be a good thing for the trees,” a scientist said.

Suni Williams and Butch Wilmore spoke in their first news conference since returning to Earth two weeks ago from an unexpectedly long I.S.S. stay that lasted more than nine months.

Nearly 2,000 scientists urged that Congress restore funding to federal agencies decimated by recent cuts.

The museum hopes that after learning about the planet’s prehistoric past, people will do more to preserve Earth’s future.

After more than a decade of mapping the stars, the European spacecraft was shut down on Thursday. But its legacy lives on.

The James Webb Space Telescope identified the lights in the distant planet’s atmosphere, which could not be seen by earlier telescopes or spacecraft.

Recovering missing animals requires understanding both animal and human behavior.

The Biden-era limits were designed to reduce emissions of toxic pollutants, including a cancer-causing ingredient used in antifreeze and plastics.

She used her wealth strategically to expand opportunities for women, underwriting the development of the pill and supporting the suffrage movement.

Senator Josh Hawley, a Republican, pressed Dr. Oz on transgender care and abortion, and now says he will vote for the physician’s confirmation to become head of Medicare and Medicaid.

Born into rural poverty, he climbed to the top of the art market. But he fell after being convicted of selling fake and stolen items.

The rocket, developed by Isar Aerospace, lifted off from Norway’s Andøya Space Center and crashed about 30 seconds later. The test flight was part of efforts to make Europe a center for private ...

It wasn’t the size of human brains that distinguished people from apes, he theorized, but the way they were organized. He found a creative way to prove it.

If you’re on the East Coast, wake up early to try and catch the moon take a bite out of the sun on Saturday.

Large quakes produce shaking at a variety of frequencies. Some waves can travel hundreds of miles, and are amplified by local geological conditions.

Referring to a little-known provision, it said power plants and others could write to seek exemptions to mercury and other restrictions and that “the president will make a decision.”

Researchers in New Zealand have made what they believe is the first recording of a shark actively making noise.

Masaki Kashiwara received the honor, often regarded as the Nobel Prize in mathematics, for work that combined different mathematical fields to solve challenging problems.

The residents of Fanalei Island, in the Solomon Islands, say the lucrative hunts will help them buy land elsewhere and move off their sinking home.

One community near Phoenix is taking a “completely different” approach to development.

Nearly 500 buildings in the state capital get their heat from a clean, renewable source located deep in the ground.

While not sparing the lives of ducks and geese, the technique lets the birds eat and grow normally.

The boost in federal spending for SpaceX will come in part as a result of actions by President Trump and Elon Musk’s allies and employees who hold government positions. Supporters say he has the ...

A neglected parcel of land was restored by volunteers and patients at a community medical center. Along the way, their health also improved.

Frozen fuel from the Falcon 9 rocket launched Monday created a luminous display for several minutes, and was seen by people from England to Eastern Europe.

The Cactus to Clouds ascent just outside Palm Springs, Calif., is grueling, but natural treasures, and a speedy trip down, await anyone who is up to the challenge.

Mushrooms in 19th-century watercolors: The paintings of a self-taught female mycologist are featured at the New York State Museum.

The Supreme Court declined to hear an appeal in the long-running case, known as Juliana, which helped spawn legal strategies widely adapted to other lawsuits over climate.