It seems to me that the discovery that there has to be much more energy in the universe than was previously believed is a very important discovery. This information was gleaned by taking accurate measures of the velocity of Super Nova as they speed away from us. While I'm not a physicist I recognize the importance of this discovery. It means that any theory of physics from the ultra small to the ultra large must take this fact into account. This is important information akin to the Michaelson Morley discovery that there is no ether and that the speed of light is constant. That fact led ultimately to Einsteins theory of special relativity. So here's the question: what current theory, be it string theory and M theory or theories involving quantum vacuum energy best accounts for this mysterious energy? The specific equation for the spectral energy distribution for the quantum vacuum energy is given at this site: http://www.calphysics.org/articles/PRA94.pdf Unfortunately I'm not educationally equiped to do the analysis to see if the energy formula for the ZPF can account for the "dark energy". The formula given is only for electromagnetic energy, However there are also similar equations for quantum probabilites for the weak, and strong force. These combined equations might account for it - I don't know. I don't know very much about the various string theories, (I actually don't care much for any of them if aethetics play any part in a theory), but I'm wondering if there is any part of those theories that could mathematically account for the dark energy. I'm depending on those of you with more math ability than I have to provide some answers.