Moon Clues Point to Hidden Giants in the Solar System
TL;DR Summary
New simulations suggest Uranus's moon system bears traces of a past era when extra giant planets were ejected; in most of 122 scenarios the moon system destabilizes, but where it survives it supports the missing-planet idea, with Miranda likely a fragment from a larger body—a key clue a future Uranus mission could test.
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- The Solar System May Have Lost 2 Planets, And The Mystery Just Deepened ScienceAlert
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