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Q&A Would it, in theory, be possible to get a planet like Mars's inner core spinning by crashing another planet or moon into it?

I'm not sure if enough heat would be generated, but this might be a simplest way to get Mars' Magnetic field going, by crashing a large body into it (perhaps Ceres?) - and, I realize the entire ide...

4 answers  ·  posted 9y ago by userLTK‭  ·  last activity 9y ago by userLTK‭

Question planets