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Which celestial body was reclassified from a planet to a dwarf planet by the IAU in 2006?

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Pluto

The International Astronomical Union reclassified Pluto because it has not 'cleared the neighborhood' around its orbit, sharing its path with many other objects in the Kuiper Belt. Despite its small size, Pluto has five known moons and a heart-shaped glacier made of nitrogen ice.

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  • In 2006, which object in our solar system was stripped of its status as a major planet and labeled a dwarf planet?

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