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 ...

Astronomers may have been listening for alien civilizations in only a small slice of the radio spectrum while overlooking a largely unexplored range of higher frequencies. Using archived data from the ...

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

On the surface, Steven Spielberg's latest can be taken as a sci-fi thriller with a message, but reading between the lines ...

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

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 ...

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

SECONDS after a dazzling ball of light illuminates the sky above the vast expanse of desert, the object darts away at a ...

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

Plus, Enos goes behind the scenes of shooting the siblings' reunion.