Hey there, i have a problem and i'm going to try to explain it Well I know that due to gravity, everything with mass (invariant & reletavistic) is attracted / attracts everything else, however my problem is, where does this energy come from? I've been told all the time since i've taken science that energy cannot be created or destroyed, only converted from one type to another etcetera, well if you place two large things in a huge vacuum they attract -- and move towards one another, correct? Well where does this energy come from? I have a slight idea for some of your answers and i'd like to pose questions in advance of them; Perhaps something along the lines of "gravitational potential energy", however, how is this gravitational potential energy transferred from that form into kinetic energy, also, how was that gravitation potential energy put there in the first place, or was it always there? Also, wouldn't this then mean that if i as a person have X amount of gravitational potential energy attracting everything around me, why is this not included in e = mc^2 and other relevant formulas. Related to this, i do understand the very very very basics of general relativity, and i think i understand that everything DOES act like this, but where is the energy from? :XX To sum up, i don't see where the attraction comes from in terms of energy, as far as i can see, the attraction just creates energy?! Which obviously is wrong! Thanks in advance, i have a bad suspicion that the answer will be like, yeah you're right but it's basically 0 :P.