When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

The exoplanet telescope TESS revealed a distant world using an entirely different detection method than the one it was built ...

For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.

A joint analysis of James Webb Space Telescope observations spanning three instruments has found insufficient evidence for ...

A Harvard University cosmologist who has suggested alien life forms could be sailing into the solar system disguised as meteors is leading the Trump administration’s secretive new scientific advisory ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

Using the Keck Observatory, astronomers measured the spins of dozens of giant planets and brown dwarfs orbiting distant stars. They found that giant planets can spin faster than much more massive ...

Many have watched recently released UFO videos, but most still think the government knows more than it is saying.

GameSpot may receive revenue from affiliate and advertising partnerships for sharing this content and from purchases through links. Alien Isolation 2 is a sequel many players have waited a long, long ...