Another example might be anomalies in planetary orbits that could be explained b... | Hacker News

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		analog31 on March 16, 2024 \| parent \| context \| favorite \| on: The End of the Dark Universe? Another example might be anomalies in planetary orbits that could be explained by a missing planet.

eigenket on March 16, 2024 [–]

This is how Neptune was discovered, for example. Astronomers noticed Uranus was moving "wrong" based on their physics of the time and worked out where Neptune should be based on that. When they pointed their telescopes there they found it.

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