This image of the galaxy cluster Abell 520 — 2.4 billion light-years away — may challenge some of our basic theories about Dark Matter. It is overlaid with false-color maps showing concentrations of starlight (orange), hot gas (green) and mass (blue). The mass is mostly Dark Matter. M.J. Jee and A. Mahdavi/NASA/ESA/CFHT/CXO hide caption toggle caption M.J. Jee and A. Mahdavi/NASA/ESA/CFHT/CXO Opinion 13.7: Cosmos And Culture Science Follows A Dark Path As It Tries To Explain The Observed Universe March 13, 2012 The things we can see in the universe are moving faster than they should be. Why? Is the answer Dark Matter, or a physics we're not yet aware of? Science has made its choice. Only time will tell if the consensus was correct.