Former intelligence officer David Grusch's testimony before Congress about recovered unidentified craft and 'non-human biologics' has reignited global debate on UFOs.

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." ...

Recently, Harvard University Science Professor Avi Loeb was appointed to head up a new group to study the phenomenon. He’s ...

A local UFO informational event is gathering national attention as fascination in unidentified flying objects, or UFOs, is ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Today marks 79 years since the U.S. first started seriously worrying there might be something "out there." But was it the ...

Stacker compiled a ranking of cities with the most UFO sightings in Connecticut using data from the National UFO Reporting Center.