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A comment on Mars Lost Its Magnetic Field – and Then Its Oceans. Parent comment

Re:Mars Lost Its Magnetic Field – and Then Its Oceans by slibhb on Sunday October 29, 2023 @06:24PM (#38063460)
If throwing space rocks is trivial (which I'm not sure I buy), surely knocking them off course will also be trivial.
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Re:Mars Lost Its Magnetic Field – and Then Its Oceans by busterarm on Monday October 30, 2023 @01:45AM (#38066094)
an object in motion stays in motion

and inertia is a bitch

you have to choose to hit something, because the energy to completely eject that mass from being dangerous would be a lot

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