Los Angeles residents took to social media in their droves following a recent Falcon 9 launch.
A former Navy pilot has come forward to describe his encounter with a strange object back in 2004.
It has emerged that, until recently, the US government had been running a covert UFO investigation program.
Back in October, aviation authorities investigated an unidentified aircraft flying over the West Coast.
A video allegedly recorded by a fighter jet based on the carrier USS Nimitz has surfaced online recently.
This month marks the 50th anniversary of a UFO sighting at Shag Harbour on Nova Scotia's South Shore.
The legendary film director has made several movies exploring the themes of UFOs and extraterrestrials.
Back in 1967, a group of students managed to pull off one of the most convincing UFO hoaxes in history.
A new video has been released with never-before-seen footage and pictures of the secretive US base.
The iconic monument was featured prominently in the 1977 movie 'Close Encounters of the Third Kind'.
The peculiar aerial phenomenon was captured on camera by Jeremy Le Fevre on Saturday evening.
Videos and pictures of an alleged UFO over Cornwall have turned out to be part of a promotional exercise.
A peculiar aerial phenomenon has been sighted in countries all across the world in recent years.
Footage allegedly recorded at the time of the sighting has since managed to make its way on to YouTube.
Today marks 70 years since the recovery of a 'flying disc' at a ranch near Roswell, New Mexico.
The Civil Aviation Authority has been using an EU law to withhold information about pilot UFO sightings.
The National Archives has published a collection of 15 Ministry of Defence files on the subject of UFOs.
The pilot who famously reported witnessing the 1997 Phoenix Lights was actually actor Kurt Russell.
'Back to the Future' director Robert Zemeckis will be producing a new TV series about Project Blue Book.
A selection of previously withheld documents about UFOs could be seeing a release in the near future.