Context: For anyone who grew up before 2006, Pluto was the ninth planet. Then the International Astronomical Union changed the definition of a planet and poor Pluto got demoted to dwarf planet status. Now it's just a nostalgic memory, and Grandpa Simpson says it best.

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[–] 6 points 1 day ago

I always preferred the other definition of planet that would make the earth no longer have a moon - instead we would be a dual-planet system.

I'm not an astronomer and so my opinion was correctly ignored. I can still disagree with it.

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