On December 26, 1980, a UFO crash site in Suffolk Country, England has become one of Britain's most famous UFO encounters in this clip from Season 12, "The Mystery of Rudloe Manor." ...

Pilot Kenneth Arnold took flight from Chehalis, Washington in his single-engine airplane, looking for a missing military ...

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...

Roswell’s annual U.F.O. festival was supposed to be full of triumphant “told you so’s” after the Trump administration ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

The incident, reportedly over a nuclear weapons assembly plant, was included in the Pentagon’s fourth tranche of UFO files.

Authorities, though, have a much more mundane explanation: space junk. The Australian Space Agency said the spheres are ...

NASA chief Jared Isaacson has confirmed that the space agency has taken images of objects that remain unknown, which could be ...

That little alien emoji staring back from your phone, with its smooth, bulbous head and almond-shaped black eyes, has ...

A report from an Ohio immigrant rights advocacy group on Tuesday found errors and discrepancies in the Immigration and ...