Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

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 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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Now, don't get me wrong. I LOVE Ridley Scott. That said, I'd much rather watch an historical epic from the director than a sci-fi ...

There’s a reason why the idea of aliens living at the bottom of the sea keeps popping up in popular culture. Many of us are far more afraid of what lies down there than whatever is looking at us from ...

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures? Reading time 3 minutes Assuming aliens do physics like us but are ...