A well-known conspiracy theory (also seen in The X-Files) attests that aliens are in communication with the U.S. government, providing knowledge and advanced weaponry, or engaged in secret wars with the military.

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

Add Yahoo as a preferred source to see more of our stories on Google. The Pentagon on Friday released another batch of UFO files following an initial drop that included never-before-seen documents related to incidents already public.The second drop ...

Explore the world of UFOs from all angles with these books covering the history, sociology and weirder takes on the phenomenon.

Historic but limited: The Pentagon published decades of UFO-related files, marking a shift toward openness but offering no confirmed evidence of alien technology. Mixed public response: Enthusiasts see validation in official acknowledgment, while sceptics ...

Recently released FBI documents from 71 years ago detailed claims that aliens sent messages to members of one of the oldest UFO organizations in the U.S. The recently uncovered files were part of a massive, never-before-seen tranche of UFO disclosure ...