During a wide-ranging keynote conversation at SXSW, Steven Spielberg shared something that immediately caught the audience’s ...

Elon Musk has turned a long-running joke about being an extraterrestrial into a central part of his public persona, even as he argues that humanity may be the only intelligent life in the universe.

Steven Spielberg is one of the greatest filmmakers of all time, and he has created some truly chilling alien encounters.

"Where is everybody?": This question, about the lack of aliens in the vast universe, is called Fermi's paradox - Copyright NASA/AFP/File HO "Where is everybody ...

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.