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." ...

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

Newly declassified 1949 Los Alamos records detail scientists’ baffling encounters with bright green “fireball” phenomena.

The Delivery… For Steven Spielberg, “Disclosure Day” was always going to be an inevitable movie to make. This is his fourth ...

In this file photo, Msgr. Stephen J. Rossetti, then a clinical associate professor at The Catholic University of America in Washington, talks during a press conference in Rome Feb. 7, 2012. Msgr.

The Space Jockey in the pilot's seat. In the 1979 Alien film, the USCSS Nostromo is diverted to LV-426 to investigate a transmission being broadcast by the Space Jockey Ship. When Arthur Dallas, Joan ...