Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

four light-years from Earth. This story appears in the March 2019 issue of National Geographic magazine. In her office on the 17th floor of MIT’s Building 54, Sara Seager is about as close to ...

You look up and see the sky, down and see the earth, and all around you, the breathtaking scenes of National Geographic come ... to step inside the story. "We wanted to figure out a way where ...