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Planet ejection

  1. Jan 21, 2006 #1
    It is said that high massive planets can eject small planets in planetary forming systems. I don't understand that since gravitation is supposed to attrack things. Do you know of any article that expains that kind of phenomenum?
  2. jcsd
  3. Jan 22, 2006 #2


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    It attracts it, then the smaller planet, not having collided escapes with the same speed relative to the planet, but a new direction which puts it on an escape trajectory. See the explanations in the thread:

    Mission To Pluto Uses Jupiter To Speed Up?
  4. Jan 22, 2006 #3
    I'll check it out. Thanks.
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