Milky Way Has 17B Planets the Size of Ours

And that's a conservative estimate

By Matt Cantor,  Newser Staff

Posted Jan 8, 2013 4:39 PM CST

(Newser) – Before we start feeling too special about our home planet, scientists have a message: There are at least 17 billion planets the size of Earth in the Milky Way alone, reports. About 17% of our galaxy's stars have Earth-size exoplanets closely orbiting...   Read full story »

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