The astrophysicist has authored a new book about the prospect of nonhuman intelligence in the universe.

For instance, what if we really are being visited by aliens from other worlds and they turn out to be aggressive, violent, ...

Pilot Kenneth Arnold took flight from Chehalis, Washington in his single-engine airplane, looking for a missing military ...

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...

The Pentagon released a fourth tranche of UFO files on Friday, disclosing the batch of 40 new files, of which 19 are videos.

Take a drive to the CIA’s Area 51 – a route with more UFO sightings and unexplained mysteries than anywhere else on Earth ...

Are the disappearances or deaths of eleven US scientists really linked in a nefarious plot? Or just a conspiracy theory with roots in a bizarre broadcast that rocked Britain in the 1970s?

A British ufologist claims Donald Trump has a prepared UFO speech confirming the 'non-human origin' of recovered entities, fuelling fresh talk of imminent 'soft disclosure'.

How a 22-pound stainless steel orb turned up in the ashes of a Florida brush fire, led to a bizarre military investigation, ...

A polarizing Harvard University astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks ...

Apple's senior VP of services also discussed his flexible approach to theatrical windows and why he is betting on "the best, not the most" content in his appearance on the Croisette before being ...