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A Cold New World

NASA's Hubble Space Telescope measured the largest object in the solar system seen since the discovery of Pluto 72 years ago. The icy world 2002 LM60, dubbed "Quaoar" by its discoverers, measures 1300 kilometers wide - approximately half the size of Pluto. Just a curious point of light until recently, Quaoar lies a billion kilometers beyond Pluto.

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