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Mega-Earth
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Mega-Earth

June 4, 2014
The newly discovered "mega-Earth" Kepler-10c dominates the foreground in this artist's conception. Its sibling, the lava world Kepler-10b, is in the background. Both orbit a sunlike star. Kepler-10c has a diameter of about 18,000 miles, 2.3 times as large as Earth, and weighs 17 times as much. Therefore it is all solids, although it may possess a thin atmosphere shown here as wispy clouds.

Credit: David A. Aguilar (CfA)

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