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Astelliard

Billiard with asteroids, lets you move large asteroids through a sequence of small ones. ... Must be already baked by nature?
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There are so many asteroids. To move a large asteroid, like cruithne to Mars, you don't have to do it directly. Small asteroids could push larger asteroids slightly to collide with even larger ones, until a larger one is cought by a gravity well.

Rather than investing $ to lifting more fuel, it could be invested into getting more information -- surveying the surfaces, masses, spins, etc. of asteroids to make precision collisions.

Inspired by [asteroid to mars] idea.

Inyuki, Aug 02 2012

zevkirsh's idea: "astroid to mars" astroid_20to_20mars
[Inyuki, Aug 02 2012]

[link]






       I think you'd want to do it by gravitational slingshotting rather than by collisions - the result of a collision would depend too delicately on things like surface topography and spin.
MaxwellBuchanan, Aug 02 2012
  

       Okay, so it is what I thought. Bun in the corner gravity well.
Alterother, Aug 02 2012
  

       I feel the problem would be getting a piece of green baize big enough.
not_morrison_rm, Aug 05 2012
  

       ...and let's not forget about the chalk. Where are you going to be a 1km/2 piece of chalk? If suddenly the white cliffs of Dover ain't there any longer, we'll know where to point the finger..
not_morrison_rm, Aug 05 2012
  
      
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