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March 28, 2003
It's Really a Three-Body Problem: BACK TO THE FEATURE INDEX Two-body problem: As one body orbits the other, it tugs gravitationally on its partner, altering the original orbit. Then the second body does the same. In the end, there's this give-and-take of a dance, as each body influences the other, constantly changing its path. The bigger, more massive body moves the least, spending most of the time in the center of this dance. Th...

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