morn1415 | The Dwarf Planets #cosmology #solarsystem #universe #astronomy #astrophysics #spaceplanets @morn1415 | Uploaded May 2024 | Updated October 2024, 5 hours ago.
Pluto was considered a Planet until 2006 when the IAU realized it needed new definitions for planets, or we would soon have a lot more. We created the category of Dwarf Planets. Until now 5 met the criteria and there are hundreds of candidates.

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