"When TESS launched, no one expected it to ever be capable of finding this kind of planet." When you purchase through links ...

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

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 ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

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

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

Well, as a matter of fact, I have often had close encounters with aliens, only I never bothered to mention it here. For this ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

There are “vast hidden magma systems” inside of Mars, scientists say – and it could have major implications for the search ...