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

A strange UFO sighting in Susa Valley, Italy, leads to the construction of Sacra di San Michele, and according to theorists, ...

Vanity Fair reports from the Capitol Hill conference, where members of a sprawling community of national security experts and ...

On December 26, 1980, a UFO crash site in Suffolk Country, England has become one of Britain's most famous UFO encounters in ...

In 1977, Brazil witnessed mysterious UFO encounters known as 'Chupa-Chupa', involving unexplained injuries and a military ...

The latest batch of UFO files from the Pentagon includes artistic renderings by credible witnesses.