(November 21, 2010 at 1:52 pm)Chuck Wrote: I've seen no theoretical suggestions that antimatter possesses negative gravity. In any case, gravity is so negligibly weak on the atomic and molecular scale compared to electromagnetic force so its effects won't impact thing much.There are currently three theories on the gravitational interaction of antimatter, all three lack experimental evidence:
http://en.wikipedia.org/wiki/Gravitation...antimatter