Trick three-planet orbit remains true
Geplaatst: zo 06 mei 2007, 13:37
If a supreme being were so inclined, it could configure three planets so that they would race around one another in a graceful figure-8 orbit. At least that's what Newton's theory of gravity predicts. Now, a team of physicists has shown that the figure-8 orbit is possible even if they use Einstein's more-accurate theory of gravity, general relativity.
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