Kepler-10c is 'Godfather Earth'. Is this rocky planet home to alien life? Astronomers discovered what could be a new class of exoplanet known as a "Mega-Earth." This new rocky exoplanet is 17 times more massive than the Earth. by Alexander Saltarin
Science Kepler spies 'Mega-Earth': This 'godfather' exoplanet is 17 times heavier than Earth but are there aliens? by James Maynard