Thanks for all your welcomes, and positive comments! <img src="/images/icons/smile.gif" /><br /><br />I just wrote a great long response (for about an hour), and unfortunately tried to close another firefox window that quicktime was choking in, and it crashed all 12 windows <img src="/images/icons/frown.gif" /> Ugh... Ok, again from the start!<br /><br />Answering: "With the universe expanding and accelerating where does all the energy necessary to accelerate it comes from?"<br /><br />The collision of membranes or "big splash" gave our membrane (and matter) all the energy it has. When the two branes collided, it sent massive, violent vibrations throughout each brane. These vibrations of our brane itself compress spacetime, creating a spider's web network of "dark matter" throughout it, and shrinking its apparant size to only a few billion light years accross shortly after the collision. All those dark matter vibrations will, over time, relax as the brane vibrations relax over time. They will first relax the most in the "starless" regions of space (as we have observed) far away from the network of dark matter brane vibrations that attracted the first gases of the early universe. This massive amount of dark matter aided those early gases to collapse into the first stars and galaxies of our universe. As the brane vibrations relaxed, they turned the potential energy of the brane vibrations into the kinetic energy of expanding spacetime back out towards its original size before the collision.<br /><br />This expansion begins slowly as the brane vibrations have rapid, high peaks, but then picks up speed as those waves stretch out towards a sin wave pattern. As the vibrations relax even further, and their wavelengths get longer and longer, this acceleration will begin to slow down as the brane relaxes closer to its original size (which I roughly calculated to be 526 trillion light years accross in radius). <br /><br />So, the dark energy came from the original collision of bra