this post was submitted on 14 Oct 2025
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'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine' (www.livescience.com)
submitted 1 week ago by RegularJoe@lemmy.world to c/science@lemmy.world
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[–] bjoern_tantau@swg-empire.de 4 points 1 week ago

Its orbit is also at a considerable angle relative to the plane all other planets orbit in. That alone made me question it's planet-ness long before it got demoted. And I felt really validated when Jim Carrey's kids in Me, Myself and Irene argued about Pluto being a planet or not.