This video explores five disturbing possibilities about alien life that challenge popular science fiction assumptions. Instead of friendly visitors or distant microbes, the scenarios focus on outcomes ...

A former CIA-funded researcher claimed that "at least four" different alien species have been discovered in wreckage ...

Are we alone in the universe? While the search for life beyond Earth has so far turned up empty, the infamous question continues to haunt humanity’s exploration of the vast cosmos. Now, NASA’s ...

Over the past decade, scientists have come up with a variety of frameworks to guide their search for life in the universe. While it’s most convenient to start looking for life using the knowledge that ...

Neil deGrasse Tyson is an astrophysicist who is the director of the Hayden Planetarium at the American Museum of Natural ...