Most UFO theories reach for outer space. The cryptoterrestrial hypothesis reaches down instead: it proposes that flying ...

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

Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...

Trump’s latest UFO files reveal a secret 1949 Los Alamos meeting where top scientists failed to explain mysterious green ...

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

Harvard astrophysicist Avi Loeb will head the UAP Science Advisory Council established by the White House, the Pentagon, the ...

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

The latest tranche of government UFO documents includes a report of an anomalous object hovering over a Texas nuclear weapons assembly plant in 2015. Author Miguel Sancho tells “Elizabeth Vargas ...

The Australian Space Agency said they are literally space balls, but not of alien origin.

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

Melissa Casias reportedly told a co-worker she was making payments on her tax debt in hopes of having her security clearance ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.