The enormous archive contains countless books, documents and files pertaining to the unexplained.
Declassified government documents suggest that a lack of UFO tracking represents a threat to national security.
The official site of the All-domain Anomaly Resolution Office will make sightings, photographs and documents easy to view.
The letter had been part of an enormous archive of letters and documents kept by the late UFO researcher.
A UFO researcher claims to have documents pertaining to an alleged UFO crash that occurred in Italy in the 1930s.
A trove of documents, photographs and records pertaining to the FBI's search for a lost gold horde has been published.
Official state documents detail the peculiar case of a triple possession that occurred in Indiana back in 2014.
A cache of 1,500 declassified documents has revealed a wide range of symptoms from UFO experiencers.
Newly released documents suggest that the Soviet Union was experimenting with telepathic communication.
New documents have revealed the truth behind the sacking of Dr Denys Tucker from London's Natural History Museum.
Newly declassified documents detail how multiple ships were harassed for weeks by mysterious drones.
Sensitive classified documents pertaining to the assassination of John F Kennedy had been due for release.
Government documents have revealed that the USS Nimitz 'Tic-Tac' UFO incident was not an isolated case.
Newly disclosed documents have revealed what the FBI was digging for in Pennsylvania three years ago.
Recently declassified government documents include almost two dozen reports of UFOs over Worcestershire.
Newly declassified CIA documents have revealed details of a secretive Cold War spy drone that looked like a bird.
Newly declassified documents contain specific details of the unidentified objects encountered by US Navy pilots.
Recently declassified documents have revealed the parts of the country with the most UFO sightings.
A private collection of 30,000 UFO documents and reports has been donated to the University of Manitoba.
Actual files from the US government's Project Blue Book are set to go on display in Washington DC next month.