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 ...

New conspiracy theories suggest the CIA may have accessed DNA databases like 23andMe to search for alien-human hybrids.

A former CIA-linked physicist's comments about 'four alien species' have reignited UFO conspiracy theories online.

Add Yahoo as a preferred source to see more of our stories on Google. Another batch of “UFO Files” have been dropped by the Pentagon, featuring previously classified documents, audio and footage of ...

Retired Navy SEAL Robert Harward's TV appearance sparked viral conspiracy theories, with viewers speculating about his identity due to unusual facial features.

Scientists are trying to solve the mystery of what race a group of cone-shaped skulls belong to as wild theories claim they ...

‘Well, I'm not suggesting I know anything!’ ...