Just months after 9/11, strange messages started appearing across U.S. military computers: “Your security system is crap.” ...

Scientists may have found the strongest hint yet that life could exist beyond Earth, and the focus is not Mars but a distant ...

The Australian Space Agency says the objects "appear to be pressure vessels from a space launch vehicle" that recently ...

A Chinese spacecraft on a mission to collect and return samples of a near-Earth asteroid beamed back its first image of its ...

For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.

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

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

A polarizing Harvard astronomer has been appointed to lead a Trump administration panel studying UFOs. Avi Loeb is leading a ...

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

E.T. the Extra-Terrestrial was a global phenomenon that spawned many knockoffs, with films like Purple People Eater, Badi, ...

The Pentagon released over a hundred newly declassified files related to UFOs (now officially referred to as Unidentified ...