The agency has approved far fewer new grants than it did in years past. A renewed effort to screen for disfavored terms and a loss of personnel are contributing.

In the Big Bend region, a portal to the early universe is enabled by the largest dark-sky reserve on Earth.

Active since last week, the Lyrids meteor shower is expected to reach peak viewing tonight.

As SpaceX prepares to go public, Mr. Musk has proposed moonshots that differ from the company?s original aim of reaching Mars.

The frequency of fireballs in our planet?s skies seemed to grow in recent months. NASA and other meteor experts can?t agree on what explains it.

Scientists are debating the classification of threatened mollusks that an Indigenous community relies on for their way of life.

The space agency is counting on Jeff Bezos? company to deliver equipment essential to the next moon landing, only two years away.

The kea gained fame for learning to use a pebble to groom himself. Scientists were astounded by his next innovation.

Scientists in Sweden made an unexpected discovery when they exposed the fish to the illegal drug as well as another substance.

Though river monitoring shows bacteria levels have declined, scientists and environmentalists said a full recovery isn?t yet assured.

Testifying on Capitol Hill, Robert F. Kennedy Jr. continued to back away from his criticism of the measles shot. But he spoke on behalf of his department, not himself.

House leaders abruptly canceled a vote on the measure when support started to look shaky.

Suicides among young adults dropped most sharply in states that actively embraced the 988 crisis line, new research has found.

Promoters of free birthing reject any type of medical intervention during pregnancy or delivery. The movement has been trending on social media, but critics warn it poses serious risks.

Collection services offer convenience, but most garments are shredded into low-grade stuffing or sent abroad to an uncertain fate.

The Interior Department had imposed restrictions on wind and solar projects across the country, prompting developers to sue.

In separate lawsuits, environmental regulators said D.C. Water failed to prevent and contain a massive spill of raw sewage upstream of Washington.

The Earth slips behind the moon in an iPhone video taken by Reid Wiseman during NASA?s Artemis II mission, a sequel to the iconic Earthrise photo taken by Apollo 8.

His immensely popular, and controversial, 1967 book, ?The Naked Ape,? argued that ancient genes, shared with apes, shape our lives.

The android won a race featuring robots and humans on Sunday in Beijing, achieving a technological milestone while finishing faster than any person in history.

A scientist and leader in the organic farming movement, she popularized the ?soil food web,? an understanding that soil is a complex realm of microorganisms.

With shortages of medical professionals and an aging population, thousands of community health care workers prevent older adults from falling through the cracks.

A chemist, she lent her expertise in drug research to ACT UP, an organization known for its street protests, and helped accelerate the approval of H.I.V. and AIDS treatments.

Amit Forlit is accused of running a hacking operation that aimed to thwart climate litigation at the behest of a lobbying firm working for an oil giant.

David Eisenman sought to better understand how to prevent school shootings and other targeted violence, until the Department of Homeland Security halted the research.

The deep-sea fish ended up with glowing lures not just to snag meals, but also to attract mates, a new study finds.

Researchers at the University of Pittsburgh gave transplant recipients certain immune cells from their organ donors. It didn?t always work.

Extreme heat is extremely hard on your vehicle, but a few simple precautions can help a lot.

The actress stars as a haunted genius opposite Don Cheadle as her father in David Auburn?s 2001 drama. This revival, though, exposes the play?s lack of rigor.

The four astronauts spoke at a news conference Thursday afternoon at Johnson Space Center in Houston about their journey around the moon and back to Earth.

In a setback for federal efforts to thwart climate litigation, the judge ruled that the suit, which tried to block the state from suing oil companies, was too speculative.

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