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

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

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...

Some of these approaches may show promise, but new research indicates much of today’s AI is even more easily duped by false ...

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

Base editing, the process used to make the changes, only nicks one strand of DNA, avoiding the major DNA errors that made ...

When I look at the night sky, I don’t wonder whether alien life is somewhere out there; I think it probably is. Considering the sheer number of stars in the cosmos, and the possibly larger number of ...

Time travel, extraterrestrial life forms, and highly advanced technology are just a few familiar concepts in the science-fiction genre, and with few to no boundaries, the genre has branched out over ...

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

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

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