Gravity is one of the four fundemental forces, it is 'part of' not separate to energy, the four forces are 'within' energy, so it is found to be concentrated where ever there is a concentration of energy, matter is in fact energy that has been acted upon by these four forces, they are like brothers linked inextricably together, gravity tho is the most pervasive of them all and so its effects are fellt across the entire universe.
[This message has been edited by V-Bird, 03-22-2004]