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MANIFOLD
Will Planet Nine be confirmed by the end of 2028?
10
á¹€100á¹€488
2028
25%
chance

The

  • Update 2025-07-03 (PST) (AI summary of creator comment): The market refers to the specific planet hypothesized to explain the clustering of orbits for a group of trans-Neptunian objects.

  • Update 2025-07-04 (PST) (AI summary of creator comment): For the market to resolve to YES, the discovered object must also be classified as a planet by the IAU.

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Astronomy
Planet Nine
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bought á¹€33 YES

There is now a candidate observation, but still needs confurmation, which could take time, though of course there may be some interest

It would be useful to have at least some guidance as to what for you counts as planet 9

@JussiVilleHeiskanen this is specifically talking about the planet that would explain the clustering of orbital for a group of trans Neptunian objects.

@chris Would it have to be classified as a planet by IAU?

@JussiVilleHeiskanen yes

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