Don Pettit’s social media feed is packed with videos and images from the International Space Station (ISS), where he is currently posted. These visuals not only give a glimpse of the world that lies ...

Moons are common throughout the solar system, orbiting planets, asteroids, and even distant Kuiper belt objects. But could a moon itself have a smaller moon orbiting it? In this video, we explore the ...

(CNN) — After decades of searching, astronomers have uncovered some of the strongest evidence yet of exoplanets orbiting Barnard’s Star, the nearest single star system to Earth. The four planets are ...

(CNN) — After decades of searching, astronomers have uncovered some of the strongest evidence yet of exoplanets orbiting Barnard’s Star, the nearest single star system to Earth. The four planets are ...

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to Earth. Astronomers have revealed new evidence ...