Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

Not every alien is trying to invade Earth, but if you're looking for the thrills and danger of an alien invasion, you can't ...

This 1980s Disney sci-fi adventure film is pretty inventive, and it remains a nostalgic favorite roughly four decades later.

Pentagon declassified UFO records include 1969 Apollo 12 audio of astronauts describing unexplained visual flashes seen ...

The Sun unleashed a bizarre radio signal that kept broadcasting for 19 straight days, leaving NASA scientists stunned.

Hypersonic flight could one day make long-haul travel as quick as a short movie. Researchers are testing how turbulence behaves at extreme speeds, a critical hurdle for designing these aircraft. Their ...

Attention unidentified spacecraft, this is the USS Asteroid Paper Railgun. Please maintain your current heading and velocity. I am about to rotate 34 degrees and jettison a new early access space ...