Pluto aficionados, rejoice! Pluto is a planet. So are the giant asteroid Ceres, Pluto's moon Charon, and a large outer-solar system object called 2003 UB313. The solar system has 12 planets instead of the familiar 9, according to a proposal that the General Assembly of the International Astronomical Union (IAU) will vote on next week in Prague, Czech Republic.
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Friday, September 01, 2006
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