Astronomers using the HARPS-North instrument on the Telescopio Nazionale Galileo in the Canary Islands have found that the extrasolar planet Kepler-10c, once thought to be a gas giant, is actually a ‘mega-Earth.’ This is an artist’s impression of Kepler-10c. Image credit: David A. Aguilar / Harvard-Smithsonian Center for Astrophysics. Kepler-10c was originally spotted by NASA’s Kepler Space Telescope in May 2011. The planet...
