During these military exercises in 1952, various UFO sightings were recorded... but what did those at sea really see?

In 1988, a recently retired U.S. Air Force Office of Special Investigations (OSI) Agent claimed on live television that the ...

Those who promote Harald Malmgren's fabrications do a disservice to their audiences and the people he cast as cardboard ...

A UFO hit and heavily damaged a US military jet in a mysterious incident near an Arizona Air Force training range - the ...

UFO whistleblower Matthew Brown, who authored the "Immaculate Constellation" report that was submitted to Congress a few ...

A UFO that struck and damaged a US fighter jet is just one of a swarm of mystery objects buzzing around Air Force training ...

But are UFO sightings like this one a sign of extraterrestrial ... These include lights, objects, and unexplained radar readings reported by military and civilian pilots, weather observers ...

When pilot Kenneth Arnold took off from Chehalis, Washington, in his single-engine airplane one afternoon in June 1947, he was looking for a lost military aircraft that had crashed. But what he ...

When pilot Kenneth Arnold took off from Chehalis, Washington, in his single-engine airplane one afternoon in June 1947, he ...

Stacker compiled a ranking of cities with the most UFO sightings in Idaho using data from the National UFO Reporting Center.