A trove of unearthed government documents has detailed a secret face-to-face encounter with aliens beings more than 60 years ago.

More than 50 pages of CIA files, which the FBI continues to say are fakes, claimed that a secret government program established communications with UFOs in 1959.

Project Sigma, started in 1954, used a binary computer language sent along radio signals into space to make contact with alien life.

Just five years after the interstellar connection, an official from the US Air Force met the extraterrestrials who received these messages.

The files claimed that on April 25, 1964, a single intelligence officer met with two aliens at a prearranged location in the New Mexico desert - the same state that the famous Roswell UFO crash allegedly took place.

The meeting lasted for about three hours, during which time the intelligence officer and the extraterrestrials shared 'basic information' about their respective races.

The documents also detailed  how a secret government group called the Majestic 12 used their incredible power to keep top secret information on UFOs away from the military and the even White House.

Several classified projects focused on alien communication and UFO research allegedly fell under the Majestic 12's control - with the group revealing to the CIA that they succeeded in their goals of finding alien life.

According to documents that emerged in the 1980s, the Majestic 12 (MJ-12) was a committee of high-ranking military, scientific, and intelligence officials assembled after the now-famous UFO crash in Roswell.

The 12-person team was allegedly established through a secret executive order by President Harry Truman in 1947.

For over two decades, these experts were tasked with managing investigations into UFOs and extraterrestrial contact.

The CIA files stated that MJ-12 oversaw four specific projects charged with communicating with aliens, researching UFOs, recovering crashed alien ships, and testing out whatever advanced technology they could find.

MJ-12 stated that it took five years before they finally made successful contact with UFOs in 1959, noting that the group 'established primitive communications with the Aliens,' using binary code sent by radio.