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

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

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

Neil deGrasse Tyson calls on the government to just show the alien, saying Americans are ready for disclosure after years of hearings and UAP files.

Why are we allowing unidentified objects to operate with impunity in our skies?” one expert testified Tuesday.

Add Yahoo as a preferred source to see more of our stories on Google. Illustration by Alberto Mier/CNN When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO ...

For many fans, the behind-the-scenes strife of Alien 3 is as well-known as its on-screen excess: This is the movie that almost permanently pushed David Fincher out of Hollywood. Fincher inherited a ...