In newly declassified documents the CIA admits to existence of mysterious AREA 51.

George Washington University's National Security Archive snagged a CIA history of the U-2 spy plane program through a public records request.

When National Security Archive’s Jeffrey Richelson reviewed the top secret files in 2002, all mentions of  Area 51 had been redacted.

Richelson says he asked again in 2005 and received a revised version a few weeks ago with ALL mentions of Area 51 restored.

Areas 51 in central Nevada,  officially known as Groom Lake or Homey Airport, is a remote detachment of Edwards Air Force Base. The baffling location is where the government is believed to test new intelligence tools and cutting-edge weaponry.

Richelson told AP the new doc shows the CIA has become less secretive about Area 51's existence, if not about what exactly goes on there.

The top secret programs that had been developed at Area 51 remain classified.

Sorry, conspiracy buffs, there’s NO evidence of extraterrestrial craft or proof of alien autopsies in the newly released docs.