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Dwarf Planets are bodies in space that are too small to be planets, and aren't asteroids. The term Dwarf Planet was first used in 2006, when they made a definition of a planet. Pluto didn't follow these rules, so it was demoted to a Dwarf Planet. Pluto was the first known Dwarf Planet, but there are many more Dwarf Planets in the Kuiper Belt.  

Known Dwarf PlanetsEdit

Almost Certainly Dwarf PlanetsEdit

Highly Likely Dwarf PlanetsEdit