From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Researchers say a biocontainment facility on the Moon could be humanity's last line of defense against potential future alien ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

Another batch of “UFO Files” have been dropped by the Pentagon, featuring previously classified documents, audio and footage of strange objects in the sky. The new release comes two weeks after the ...

Devils Tower, Wyoming (CNN) — The buzz started in a hay meadow at the foot of a mysterious-looking geological formation. Helicopters and trailers arrived in large numbers, famous faces and a ...

A nun discusses the debate on UFOs, suggesting they may be linked to spiritual forces rather than extraterrestrial beings, ...

Add Yahoo as a preferred source to see more of our stories on Google. Steven Spielberg on "The Late Show with Stephen Colbert" (CBS) After making so many movies involving aliens — and specifically so ...

A provocative sci-fi thriller that challenges truths, explores hidden realities, and pushes readers to question belief on extraterrestrial life and unseen force NEW ...