As shocking as it sounds today, prior to the 1990s, scientists couldn't be certain that stars beyond the sun also had planets orbiting them. Since the discovery of the first extra-solar planet, or ...

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 ...

The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...