A recent poll has demonstrated that many people in the US still believe that aliens crashed at Roswell in 1947.
The 56-year-old made headline news in the early 2000s after he was caught hacking into US government computers.
An unidentified object was picked up on camera during this weekend's celebrations of the platinum jubilee.
Back in the 1960s, officials were keen to promote the idea that UFO sightings were always easily explainable.
Genuine footage recorded by the pilots of a US Army helicopter shows three unidentified, fast-moving objects.
Researchers have been attempting to determine the source of several unexplained light flashes in the decades-old images.
Former Minuteman commander Robert Salas maintains that he reported the incident to the UFO task force last year.
The first congressional UFO hearing in 50 years offered greater transparency, but no concrete evidence of aliens.
The hearing - which will focus on the potential security risks - will reportedly feature the testimony of two Pentagon officials.
Taken from a plane in 1971, the image shows what appears to be a metallic saucer flying through the air.
Ethan Siegel encountered something one night in New Mexico that would leave him perplexed for almost two decades.
The US government's secretive UFO program did more than investigate sightings of unidentified arial phenomena.
The series - simply entitled 'UFO' - has become mired in legal problems over a trademark infringement lawsuit.
Residents took to social media to share photographs of an anomalous cloud-like trail over Lazy Mountain.
A cache of 1,500 declassified documents has revealed a wide range of symptoms from UFO experiencers.
A previously unreported US Navy encounter with UAPs has been revealed by a former marines officer.
A series of very strange events accompanied a UFO sighting in the notorious region back in 1978.
A recent Freedom of Information Act request has highlighted just how many files are still held by the US government.
A detailed analysis of the best known US Navy UFO video has provided an intriguing new perspective.
It has been 25 years since a mass UFO sightings over Phoenix, Arizona captivated the world.