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

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

A strange object has been spotted in a NASA video, leading to claims that astronauts on the International Space Station were ...

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 ...

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 ...

Some UFO movements look impossible at first glance, but motion can be surprisingly deceptive. The most interesting cases are ...

The latest batch of declassified files includes eyewitness sightings from earlier this year of a flying black triangle ...

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

See more of our coverage in your search results. Make New York Post a Preferred Source The Central Intelligence Agency placed its assets in the African nation of Zimbabwe on high alert in the summer ...

Newly released Pentagon files have allegedly confirmed that one of the most famous UFO incidents in history was real.