It sounds like a sci-fi twist—but Soviet cosmonauts actually packed shotguns with their gear. The reason had nothing to do ...

With temperatures reaching almost 2,000 degrees Celsius on its dayside, LTT 9779 is one of the few known planets in the "hot ...

Two mysterious blobs deep inside Earth may hold clues about the origin of life on our planet, new research finds. Deep ...

More than 100 years after its existence was predicted, scientists report that they have, for the first time, seen dark matter ...

The goal of the Thirty Metre Telescope project is to peer deeper into the cosmos than ever before, studying black holes, ...

More than 3,700 students across North America competed to design experiments for launch aboard the International Space ...

Scientists have proposed a shocking new theory for the origin of the moon, and their calculations suggest Earth once had a ...

New observations show that asteroid 1998 KY26 is a mere 11 meters across and spinning twice as fast as previously thought.

Artificial intelligence is quickly moving from lab curiosity to everyday necessity. By managing the crowded skies above, protecting airline passengers, and welcoming more people into the wonders of ...

Astronomers using the James Webb Space Telescope have detected phosphine gas in the ancient brown dwarf Wolf 1130C, a discovery that contradicts years of predictions about how phosphorus behaves in ...

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

Funding uncertainties are pushing U.S. space scientists out of the field and putting existing and future space missions on the chopping block.