A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

The terms “gender ideology” and “transgender ideology,” have become ubiquitous — in government documents and policy announcements, in mass media and in online disputes.

The latest trio — Zhang Lu, Wu Fei and Zhang Hongzhang — are the crew of the Shenzhou-21 mission, whose return capsule was ...

While none of the spacecraft have cameras perfectly designed to spot comets zipping by at speeds up to about 153,000 miles per hour (246,000 kilometers per hour), astronomers didn’t want to miss what ...

The new study involved taking a fresh look at the "Altamura Man," which is an exceptionally well-preserved Neanderthal ...

Researchers have discovered chemical traces of life in rocks older than 3.3 billion years, offering a rare look at Earth’s ...

Archaeologists studied Semiyarka, dubbed The City of Seven Ravines, a settlement from 1600 BC that may have been a powerhouse ...

Deep in the heart of the matter, some numbers don't add up. For example, while protons and neutrons are made of quarks, ...

In other words, it’s a personalized cancer vaccine. Early tests of these vaccines are extremely promising. But the federal ...

Scientists newly described how a parasitic ant queen infiltrates another ant species’ colony and tricks the workers into killing their mother.

Sky-gazers worldwide may get the chance to see a celestial display this week as the annual Leonid meteor shower reaches its peak.