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Q&A How can you make a stable configuration including a moon that has a moon?

A moon is, fundamentally, a rock that's caught in the gravitational field of a bigger rock (a planet) and drawn into an orbit. Some of Saturn's moons, for example, are speculated to be debris from...

2 answers  ·  posted 9y ago by Monica Cellio‭  ·  last activity 8y ago by Monica Cellio‭

Question moons