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

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

A former Pentagon UFO chief says he's seen alien craft with his own eyes. A Harvard scientist says show the data first.

NASA's probe captured a mysterious object soaring near the sun. It has sparked claims of a 'UFO mothership' traveling through ...

A former Pentagon official who led the government’s investigation into unidentified flying objects says the U.S. recovered ...

For those who searched for "What is in Area 51," "Area 51 aliens," or "Bob Lazar." I have organized why the military facility ...

Former US intelligence officer and UFO whistleblower David Grusch has made a series of extraordinary claims about alleged alien encounters, crashed spacecraft and non-human beings during an appearance ...

Since the late 1940s, tales of UFO sightings have become more and more common. Alongside these claims have come countless photos. Many are quite clearly fakes made by attention-seekers, but a few have ...

A former Pentagon intelligence chief who led Washington's official UFO inquiries says he personally saw 'non-human craft' and 'non-human beings' while in government service in the United States, and ...

Self-described UFO expert Scott C Waring says a rectangular shape in a solar image is a huge alien spacecraft, but its size, ...