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 ...

It’s a beautiful night. Just you, a bottle of wine and your partner drifting through the cosmos in a UFO. As your caress ...

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, ...

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

Avi Loeb has suggested that humans themselves may be 'intelligent, self-replicating and self-repairing autonomous probes' built by an advanced alien civilisation, arguing in a new essay published ...

For instance, what if we really are being visited by aliens from other worlds and they turn out to be aggressive, violent, ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters of the Third Kind contact humans using music and lights, but the director ...

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

Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...