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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.

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.

The Ursids this weekend are a winter solstice light show.

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.

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

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.

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.

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

Nuno F.G. Loureiro, the professor, attended the same physics program in Portugal as the man suspected in his killing.