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Austria 01/11/2011 03:57 AM Report Abusive Post Report Copyright Violation | Rocky exoplanet milestone in hunt for Earth-like worlds Astronomers have discovered the smallest planet outside our solar system, and the first that is undoubtedly rocky like Earth. Measurements of unprecedented precision have shown that the planet, Kepler 10b, has a diameter 1.4 times that of Earth, and a mass 4.6 times higher. [ link to www.bbc.co.uk] |