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

In 1977, Brazil witnessed mysterious UFO encounters known as 'Chupa-Chupa', involving unexplained injuries and a military ...

Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

Steven Spielberg's Disclosure Day ending challenges modern cynicism with a hopeful vision of humanity.

Having considered more than 1,000 cases, this analyst of unidentified anomalous phenomena has honed a rational process for ...

A Catholic nun made a startling assertion about UFOs, cautioning that purported alien encounters are in fact a menacing ...

You are driving alone through a quiet countryside road at dusk when something strange appears in the sky. A sudden white ...

The Pentagon just released what they're calling never before seen UFO files, including videos, images, and original documents ...

It was a close encounter of the Schiff kind. President Trump made an out of this world jibe when he was allegedly briefed on ...

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

Former intelligence officer David Grusch's testimony before Congress about recovered unidentified craft and 'non-human biologics' has reignited global debate on UFOs.

On December 26, 1980, a UFO crash site in Suffolk Country, England has become one of Britain's most famous UFO encounters in this clip from Season 12, "The Mystery of Rudloe Manor." ...