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

Researchers say a biocontainment facility on the Moon could be humanity's last line of defense against potential future alien ...

“Disclosure” has become a cult word. It shouldn't be, since all it means, technically, is to reveal something. But the new wave of alien conspiracy theorists have made “disclosure” into a teasingly ...

Devils Tower, Wyoming (CNN) — The buzz started in a hay meadow at the foot of a mysterious-looking geological formation. Helicopters and trailers arrived in large numbers, famous faces and a ...

The site compares undocumented immigrants to extraterrestrials, refers to people as "it," and says "they do not belong here." ...

Add Yahoo as a preferred source to see more of our stories on Google. Lucia Gillot, 61, recalls her unforgettable encounter with a mysterious figure on the Llŷn Peninsula - Lorne ...

Explore hidden UFO events from Arizona's rich history, groundbreaking Las Vegas footage near Area 51, and recent alien disclosures in Mexico. This series features fresh interviews, declassified Cold ...

With 'Disclosure Day,' the director returns to a longtime preoccupation. Two Times staffers explore his ongoing fascination with extraterrestrials.