I've been reading and posting in this forum for a little while. I've noticed a few things have been mentioned about dark matter, energy, and negetive gravity. I asked my physics teacher about what dark matter was; he said it was basically protons that have negetive charges and electrons that have positive charges. We didn't discuss dark energy because he didn't remember much about it. The negetive gravity conversation briefly mentioned that for gravity there is anti-gravity which was the opposing force to gravity. How does the charge of protons and electrons become reversed? Is there anyway to change it back? What is dark energy? How does it work? Would is destroy energy? If that is what happens then what is the byproduct? How would energy be destroyed if there is a postulate that states energy can neither be created nor destroyed but can be converted? How do you get negetive gravity? Is there ever a case in which the negetive gravity and gravity have been equal in forces creating a condition similar to equilibrium? Are there any places in the universe where these exisist in large amounts? Lots of questions I know... they don't need to be answered in one post, but whatever floats your boat.