Question Is there a 9th planet? If so, then how big, dense, and massive is it? What is its orbit around the sun and gravitational effect on the Solar System?

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Does Planet 9 exist?

  • yes

  • no

  • probably

  • not sure

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Apr 3, 2020
There's no chance to be a black hole. If it was, earth and rest of the whole system could be somewhere in the deep space. There is a theory that says, even if a small black hole pass nearby the solar system, all the planets will move pretty far from its current position and it'll be catastrophic. So, I guess there's no black hole. Actually, I think astronomers hide the truth about this 9th planet.
Why hide the truth? What would be gained by this?