Some have connected the site with the alleged government coverup of an alien spacecraft crash. But if that’s not true, what is?

Area 51 is a remote, heavily guarded area in the Nevada desert. Wild theories abound about what goes on in Area 51, including…

Area 51, secret U.S. Air Force military installation located at Groom Lake in southern Nevada. It is administered by Edwards Air Force Base in southern California. The installation has been the focus of numerous conspiracies involving extraterrestrial life, though its only confirmed use is as a flight testing facility.

We reveal the base's secrets