3 ms·

It doesn't. As far as we can tell though, our universe doesn't have much curvature, so the problem doesn't come up.

• nabla9 7y ago
  It comes up in our solar system. The anomalous motion of Mercury can explained only if the gravity does not follow inverse square law.
  • evanb 7y ago
    That's a short-distance effect, though, not a long-distance one.