A new study proposes searching the moon for remnants of ancient extraterrestrial technology. Researchers suggest the moon's surface could preserve microscopic "technosignatures" left by alien ...

When/if alien life ever cruises toward Earth in big spaceships, we’re probably not just going to see it; we’re going to hear it via narrow radio signals. If an extraterrestrial civilization wanted to ...

If intelligent aliens are out there, why aren’t we hearing from them? Are they silently observing us like zoo animals, or staying quiet out of fear that they’d catch the attention of a bloodthirsty ...

From the Star Wars spin-off The Mandalorian to the classic series Star Trek: The Next Generation, these are the best sci-fi shows that feature aliens.

A man claiming to be a 'time traveller' from 2045 has sparked fresh debate online after asserting that alien contact in 2028 will reveal extraterrestrials are not from outer space, a claim he made ...

Director James Cameron’s acclaimed sci-fi movie Aliens turns 40 in August. It’s a sequel to Ridley Scott’s claustrophobic breakout hit Alien, made in 1979. Where the original featured one terrifying ...

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, ...

Pioneering astronomer Carl Sagan once wrote that "The universe is a pretty big place. If it's just us, seems like an awful waste of space." On screen, the vastness of the universe and the ...