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scientists-from-hamburg-observatory-map-cosmic-crash Using the Hubble Space Telescope and Subaru in Hawaii, a team of scientists have mapped the distribution of Dark Matter in a giant collisions of galaxy clusters that produces a radio sources that is 10 Million light years long (shown in green in the picture). The red colours show X-ray emission and the white contours show the distribution of Dark Matter that has been detected using gravitational lensing. The study was led by J. Jee from UC Davis and involved the Merging Clusters Collaboration.   For more information, see http://arxiv.org/abs/1510.03486 and http://www.mergingclustercollaboration.org