A Catholic nun made a startling assertion about UFOs, cautioning that purported alien encounters are in fact a menacing ...

Lawmakers and Trump UFO advisors are naming the private corporations who allegedly operate crash retrieval programs and are ...

From "Independence Day" to "Invasion of the Body Snatchers", movies and TV shows are packed with advice for anyone aspiring ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks are enormous.

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

A lot of the alien races in the Star Trek universe are humanoid, and the original series explained that fact way back in the ...

What if you found out that you had a long-lost relative? And what if that long-lost relative was from a different planet in ...