The White House advisor has earned attention-and intense scientific criticism-for his theories about alien technology.

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that ...

Spider-Man: Brand New Day introduced a fully armored Scorpion, but one mystery lingered after the credits rolled. Now, ...

(cokada/iStock/Getty Images Plus) Last June, while most of us were sweating it out and scrolling socials, more than two dozen ...

After decades of secrecy, stigma, and sometimes silliness—like the conspiratorial tales about recovered spacecraft and alien ...

A Ukrainian preprint reports more than 20 objects near the Moon, but missing distance data, independent confirmation and peer ...

Sometimes, "unidentified" means just what it sounds like.

Now that FX's Alien: Earth has officially been renewed for Season 2, it can explore more of the sci-fi franchise's best ...

One of the challenges of searching for technosignatures (i.e., signs that intelligent life somewhere in the universe has ...

A new study suggests alien probes and hidden technosignatures could be concealed within the asteroid belt, raising fresh ...

A NASA Curiosity rover image has sparked claims of an 'alien missile' on Mars, though NASA attributes such formations to ...

The Fermi paradox asks why we haven’t found aliens yet. Scientists say the answer may lie in timing, technology, and the vast scale of space.