Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

"In space," some marketing genius once said, "no one can hear you scream". Bring the Xenomorph and its associated ecosystem back home, however — as "Alien: Earth" so memorably has — and you hear ...

During EW's big "Summer Preview" issue, we learned that the series will be set in 2120 – only a few scant years before what goes down during 1979's Alien. As we've seen from the films, the future is ...

A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But not everyone agrees that it signals life. An illustration shows what ...