The Air Force just gave UFO enthusiasts a real treat after the Project Blue Book, the complete U.S Air Force files on UFO sightings and investigations, has been made public.

Just recently, some 130,000 pages of UFO records were made available online and are accessible through PDF form. The said files were published in the website called the Black Vault.

The documents were part of the official investigation of the United States military from 1947 to 1969 concerning UFO phenomena. The files were top-secret until they were declassified for the first time in 1979.

While some of the case files were already accessible in some places, this is the first time that they have been made public in searchable database and can be downloaded for free.

Military times reported that “the National Archives has made these files available to public on microfilm in its Washington headquarters. Parts of the Project Blue Book files have previously been posted online in various locations.”

The report further revealed that it is UFO enthusiast John Greenewald’s webpage that the complete files have been posted in PDF form in a searchable database.

According to Inquisitr, “the Air Force began investigating UFO sightings in 1947 because with Cold War hysteria and panic about Communist spying gripping the country at that time, the government feared that UFOs could be some form of advanced Soviet technology. Or if not, that the sudden outbreak of UFO sightings that began in 1947 would spark a national panic.”