This is the last of three blog posts associated with this week’s episode of Cosmos: A Spacetime Odyssey, which addresses life in the universe. Read the first and second here. Someday, in the not too ...

The exoplanet, dubbed GJ 251 c, is at least four times larger than our own planet and is likely to be a rocky world located ...

The newly discovered world is called GJ 251c and it is a super-Earth orbiting a red dwarf star less than 20 light-years away.

Ian Randall is Newsweek's Deputy Science Editor, based in Royston, U.K., from where he covers everything science and health ...

Many planets featured in Star Trek TNG share traits that scientists now look for when identifying exoplanets: rocky terrain, ...