An eerie sighting over Washington DC has sparked claims that alien craft are hiding in America's skies.

(NewsNation) — The Pentagon’s latest release of UFO files contains familiar-sounding accounts of “unidentified anomalous phenomena,” but at least one element is surprising: the lightning speed at ...

The seventh batch of unclassified files also includes eyewitness accounts of dog-like creatures and trolls at a Utah ranch.

UFOs aren’t new. Indeed, humans have been describing unidentified flying objects for millennia, with depictions of disk-like objects and unusual atmospheric objects found in the art and literature of ...

Some documents date back to the 1940s, 1950s and 1960s, but the most intriguing are from this year.

A fresh tranche of files released under the Trump administration’s transparency initiative has just dropped some jaw-dropping details about UFOs. The declassified files reveal high-speed encounters ...

There is a pretty pervasive and consistent assumption in our long history of UFO sightings: that the unidentified objects some of us see in the night sky are vehicles or crafts inside of which are ...

New UFO files describe federal agents' sighting of a silent triangular craft near a US security site, prompting calls for further Pentagon investigation (Image is for illustrative purposes only) AI ...

UFOs could be using our oceans to remain hidden from humanity, a retired US admiral has suggested, as a huge underwater ...

UFO researcher Scott C. Waring says a 3,000ft-wide underwater feature off Nunavut could lead to an alien base, but no ...