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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[–] Quibblekrust@thelemmy.club 1 points 3 days ago

The team came to this conclusion after analyzing the trajectories of 50 Kuiper Belt objects (KBOs) and discovering that they were tilted by around 15 degrees compared with the rest of the solar system's planets. The only thing that could explain this tilt was a hidden world, they argued.