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Feb13-08, 04:12 PM
P: 1,636
Gravitational slingshot also gives illusion of a mysterious repulsive force. When a space probe approaches a giant planet like Jupiter on a certain tangent, it swings around and gains incredible speed. Upon leaving the planet, one would assume the gravity would slow down the space probe by pulling it inwards, but that is not true. The probe leaves the system at a higher speed as if it was repulsed.