Astronomers have searched for Planet X for over a century without success. This video explains why distance, darkness, and technology make it so hard to detect distant worlds. It shows how past ...
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Predict the effects if Planet X entered our solar system
The curious minds at What If predict the effects if Planet X entered our solar system, revealing orbital chaos, climate ...
A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth than the hypothetical Planet X, which astronomers have been hunting for ...
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