The seventh tranche of documents includes investigative reports into three sightings in June of this year.

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

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

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

Federal agents encountered a large aircraft that zoomed across the sky from a standstill while making no noise or giving off any exhaust, according to new files.

Pentagon files describe a black triangular object near a US facility, with witnesses reporting unusual maneuvers and no heat ...

The object went from a hover to the speed of a military fighter jet in a matter of seconds.

Newly released Pentagon records describe federal agents' reported encounter with a silent, triangular object, while ...