A super-Earth exoplanet in the habitable zone of its star has been detected less than 20 light-years away, putting it near the top of the list for best places to look for life beyond our solar system.
The planet, known as GJ 251c, orbits a red…

A super-Earth exoplanet in the habitable zone of its star has been detected less than 20 light-years away, putting it near the top of the list for best places to look for life beyond our solar system.
The planet, known as GJ 251c, orbits a red…