NYT Science

A heritage of dark sky preservation means residents of Flagstaff welcome the season’s longer nights with prolonged views of the stars.

In some studies, half of patients stopped taking GLP-1s within a year despite the benefits, citing the expense and side effects.

The Ursids this weekend are a winter solstice light show.

She pointed to evidence that the Earth’s inner core was solid — not liquid, as scientists had believed — a discovery that was ahead of its time.

Nuno F.G. Loureiro, the professor, and the man suspected in his killing attended the same physics program in Portugal during the 1990s.

A delayed environmental review cleared the Dakota Access Pipeline to continue operating. Separately, a North Dakota judge expressed unusual exasperation over the tangled legal battles.

A funding crisis at the Museum of the Earth and the Paleontological Research Institution in Ithaca, N.Y., could scatter priceless specimens and end nearly a century of pioneering research.

How did ants take over the world? The answer may be skin deep.

News of the breakup of a leading science institution rippled through an annual gathering of Earth, ocean and space scientists. Many say American science is suffering under the Trump administration.

Trekking across Malaysia, her adopted country, she found more than 150 unrecorded plant species. “She’s one of the greatest botanists who ever lived,” a colleague said.

The agency’s high-level turnover and conflicting policy decisions on drug oversight have fueled concerns about the leadership of Dr. Marty Makary.

An unusual object orbiting a rapidly spinning star might be a new phenomenon in the universe.

Proposed new rules would punish the hospitals by pulling all federal financing. Advocates say lawsuits will follow.

The professor, Nuno F.G. Loureiro, was pronounced dead at a hospital on Tuesday morning. The authorities said they had opened a homicide investigation.

Russell Vought, the White House budget director, called the laboratory a source of “climate alarmism.”

Jared Isaacman, the billionaire nominated twice to lead the agency, may draw some lessons from the tenure of another NASA leader in the 1990s.

Ana Vaz monitored crucial fish stocks in the Southeast and the Gulf of Mexico until she lost her job at NOAA.

Two hundred million years ago, prosauropods walked the earth. They left something behind.

A court filing by a group with deep ties to the pipeline company Energy Transfer raises questions about the growing use of amicus briefs in litigation.

In Argentina, the return of pumas brought top predators back to the landscape — much to penguins’ dismay.