Not every alien is trying to invade Earth, but if you're looking for the thrills and danger of an alien invasion, you can't ...

One great backstory and one unnecessary one.

The former president emphasized there’s no way such a secret could stay confidential.

A new documentary claims the US government has hidden evidence of UFOs and alien life for decades, with insiders alleging a secret programme operated beyond congressional oversight.

Trump wrote no caption to shed light on the meaning of the image, triggering speculation online.

Neil deGrasse Tyson has turned his lifelong fascination with aliens into a new book, “Take Me to Your Leader: Perspectives on Your First Alien Encounter.” ...

The buzz started in a hay meadow at the foot of a mysterious-looking geological formation. Helicopters and trailers arrived ...