The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn more.

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

President Trump has released 161 UFO files to the public, citing the need for transparency. But critics view the release as a play to a conspiracy-curious base.

Buzz Aldrin is quoted as having made three observations, one of which was of something with a "sizeable dimension."

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 ...