The real reason Pluto isn't a planet

In 2006, the International Astronomical Union (IAU) created the category of dwarf planets to which Pluto was added. But why was Pluto demoted from being a planet? This video explores the three requirements for a planet and why Pluto doesn't meet all of them. Viva la Pluto. ▀▀▀ I believe I was a bit rash when saying that Pluto used to be a planet because scientists haven't been able to figure out what the definition should be. Upon Eris, Haumea, and Makemake's discoveries, the IAU was actually very quick to redefine what makes a planet based on the newfound information. ▀▀▀ North Star Video: https://www.youtube.com/watch?v=Ovw93gHFAIs Misconceptions about the Moon Video: https://www.youtube.com/watch?v=1gkQxfSKmlQ ▀▀▀ Some further interesting wikipedia articles – Kuiper Belt: https://en.wikipedia.org/wiki/Kuiper_belt Plutinos: https://en.wikipedia.org/wiki/Plutino Hydrostatic (Geostatic) Equilibrium: Hydrostatic Article on Pluto's Demotion: https://www.loc.gov/everyday-mysteries/astronomy/item/why-is-pluto-no-longer-a-planet/ ▀▀▀ Instagram: @ontheshouldersofscience TikTok: @ontheshouldersofscience ▀▀▀ Music obtained from epidemicsound.com and YouTube Audio Library Intro/Outro Background obtained from Videezy.com Hubble Space Telescope footage obtained from Free Stock Videos Created By Ben Mesko