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Changing the rotation of a natural satellite

  1. Jan 25, 2009 #1
    Pardon me for my ignorance -- and naivety, if this question idicates it -- but would it be possible to change the rotation of a planet or moon? We'll assume the hypothetical people attempting this project have a nearly infinite budget, but even with quadrillions of dollars, is this even plausible? Thanks.
     
  2. jcsd
  3. Jan 25, 2009 #2

    mgb_phys

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    Build very big engines on the equator - push out sufficient amount of mass at high enough speed to reverse the planet/moons angular momentum.
    Hit planet/moon with a very big object going very fast in the opposite direction to it's current rotation
     
  4. Jan 25, 2009 #3

    DaveC426913

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    The engines don't have to be big if you are very patient. All depends on your success criteria.
     
  5. Jan 26, 2009 #4
    Oh. I thought about the first one, but wasn't sure if it would really work. Thanks.
     
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