Does Pluto have to be allowed back into the planet club?



It was the third point that forced Pluto to surrender his rifle and insignia. It runs in the Kuiper belt, a messy neighborhood full of rocks and rubble. As a result, Pluto, along with other TNOs such as Eris, Haumea, Makemake and Sedna, were relegated to a new class of objects called "dwarf planet", which essentially meet the first two criteria for a planet, but not the third.


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