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'''Ceres''' is the largest planetoid in the [[Asteroid Belt]], roughly one-fourth of the diameter of the [[Moon]].  Astronomers recently upgraded Ceres from [[asteroid]] to the new class of bodies called [[dwarf planet|dwarf planets]].  [[NASA]] plans to explore Ceres with a probe in 2015. <ref>http://news.bbc.co.uk/2/hi/science/nature/6037844.stm</ref>

'''Ceres''' is the largest planetoid in the [[Asteroid Belt]], roughly one-fourth of the diameter of the [[Moon]].  Astronomers recently upgraded Ceres from [[asteroid]] to the new class of bodies called [[dwarf planet|dwarf planets]].  [[NASA]] plans to explore Ceres with a probe in 2015. <ref>http://news.bbc.co.uk/2/hi/science/nature/6037844.stm</ref>