Why do astronomers believe there is a 9th planet

Peter Rakmanyi asked Oct 14, 2023

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15 votes

Peter Rakmanyi asked Oct 14, 2023

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10 votes

Answer:

There are gravitational effects causing a cluster of orbits for a group of ETNOs, this is high evidence there is a 9th planet past Neptune.

Ketan P answered Oct 19, 2023

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