Neptune Kidnapped Triton from Another Planet

[FLO]

Neptune's moon Triton is unique in the Solar System because it's the only large moon that orbits in the opposite direction to its planet's rotation. Researchers have developed a computer model that explains how Neptune could have captured Triton from another planet during a close approach. Under this scenario, Triton was originally part of a binary system with another planet. They got too close to Neptune and Triton was torn away.

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