This story appears in the March 2019 issue of National Geographic magazine ... also galvanized the decades-long search for intelligent aliens. To Seager, a MacArthur “genius award” winner ...

We sent a message to aliens 50 years ago—this is what we said We sent a message to aliens 50 years ago—this is what we said Alien life is out there. Can AI find it? Alien life is out there.

NASA sent a map to space to help aliens find Earth. Now it needs an update. NASA sent a map to space to help aliens find Earth. Now it needs an update. ‘I put my camera to my face and cried.’ ...

This story appears in the August 2017 issue of National Geographic magazine. Carl Sagan spent his childhood immersed in Mars. The future scientist, an avid reader of Edgar Rice Burroughs’s ...