Scientists discovered a rocky exoplanet with an atmosphere orbiting in a habitable zone, raising new questions about the potential for life.

For the first time, scientists have found a rocky planet with an atmosphere orbiting in a star’s habitable zone. Researchers from Harvard University say the Earth-like world has conditions similar to those on Earth.

The exoplanet, LHS 1140 b, is 48 light-years from Earth. It orbits a red dwarf star at a distance close enough for water to remain liquid, but far enough away that it would not boil.