In “Are super-sized Earths the new frontier?” (November 2008), Contributing Editor Ray Jayawardhana discusses how recent exoplanet discoveries have uncovered worlds with masses only a few times more than that of Earth. He also explained how astronomers think these “super-Earths” could be more hosipitable to life than Earth itself if one of them orbits its parent star at the right distance.
The search for exoplanets
Astronomy Contributing Editor Ray Jayawardhana explains how astronomers hunt for worlds beyond our own.