The White House is mocking the idea of the U.S. retaining secrets involving alien encounters by launching a space-themed website that touts the arrests of immigrants unauthorized to live in the U.S.

The White House has lifted the lid on the shock extent of an "alien invasion" which has blighted US soil for the past six ...

The 1977 film “Close Encounters of the Third Kind” caused a big spike in tourism to Devils Tower, the mysterious landmark that plays a key role in the movie.

UFOs, once an American oddity, have expanded into an international phenomenon—there’s no shortage of alleged sightings, ...

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 ...