A mysterious object was seen on SpaceX's livestream of its Starship rocket on Monday. Many viewers suggested it was a UFO, ...

Saturn's moon may aid in the search for alien life by making some ocean compounds easier for future spacecraft to detect.

NASA released a trove of never-before-seen images of the interstellar comet 3I/ATLAS, unveiling new characteristics of the ...

Some people treat the idea of aliens as nonsense, but scientists actually believe that the notion we're alone in the entire ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...

Add Yahoo as a preferred source to see more of our stories on Google. Former Area 51 employee Bob Lazar. Courtesy of Luigi Vendittelli Bob Lazar is a self-proclaimed physicist whose claims to inside ...

When/if alien life ever cruises toward Earth in big spaceships, we’re probably not just going to see it; we’re going to hear it via narrow radio signals. If an extraterrestrial civilization wanted to ...

If ancient extraterrestrial explorers ever traipsed through Earth's cosmic neighborhood, it's possible they left behind some ...