Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

President Donald Trump made a jaw dropping jibe when he was allegedly briefed on alien “hybrids” living among humans.

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper. Reading time 3 minutes In our search for life beyond Earth, we might ...

Hibernating aliens are one of science fiction’s favorite answers to the Fermi Paradox: ancient powers asleep in the dark, waiting to wake up and reclaim the galaxy. But this episode explores a ...

Warning: There are spoilers ahead for Disclosure Day.Disclosure Day writer David Koepp discloses the story behind the movie's alien design. When the film's aliens aren't disguised as animals and ...

(via PBS Space Time) We’ve been looking for messages from the stars ever since Frank Drake pointed the Green Bank radio telescope at Tau Ceti and Epsilon Eridany 65 years ago. He saw nothing that ...

When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO conspiracy theorists wondered whether they might finally get answers they’d long awaited. But coming on the ...

Steven Spielberg’s upcoming alien encounter film Disclosure Day presents its final trailer, which shows us our first glimpse of the film’s aliens. Whenever Steven Spielberg tackles the subject of ...

Add Yahoo as a preferred source to see more of our stories on Google. Tardigrades—a type of invertebrate also known as water bears—are the only animals observed to survive the intense radiation and ...

For generations, science fiction has imagined what life might look like on other worlds. These aliens are fictional, sure, but some of them are informed by real evolutionary processes on Earth. That’s ...