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 ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...

The world is fair and square when it comes to celebrations. Nothing seems to escape the calendar. Almost every date has become some day. There are the popular o ...

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

WASHINGTON (AP) — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump ...

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

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?

Avi Loeb vows to brief public and create website to share findings of team tasked with investigating origins of mysterious ...

A comet screaming in from another star system carried alien ice ratios never seen before. What scientists found inside its spinning nucleus is reshaping how we picture worlds beyond our sun.