We like to imagine of gravitational orbits as the conic sections: circles, ellipses, etc. That's only for twobody problems though. Let's take a look at threebody problems (and beyond) using Newtonian mechanics as well as General Relativity. How weird can orbits actually get?

Thanks to Phil Lynch for permission to use his Kerr black hole simulation:
  / philiplynchgw  
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LINKS TO COMMENTS

   • Where Does Electric Charge Come From?  
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