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Harvard-Smithsonian Center for Astrophysics

Two Water Worlds for the Price of One

18 Apr 2013, 18:15 UTC
Two Water Worlds for the Price of One

April 18, 2013: In our solar system, only one planet is blessed with an ocean: Earth. Our home world is a rare, blue jewel compared to the deserts of Mercury, Venus and Mars. But what if our Sun had not one but two habitable ocean worlds?

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