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Biggest Collision in the Universe Summary - (Sep 24, 2004) An international team of scientists have discovered one of the most powerful events since the Big Bang: a collision between two galaxy clusters, which is smashing millions of stars into each other. The galaxy clusters are colliding like hurricanes, tossing individual galaxies out into interstellar space, and creating shockwaves more than 100-million degrees hot. Although the cluster, Abell 754, has been known for a long time, the astronomers used the ESA's XMM-Newton X-Ray Observatory to trace back the interactions and collisions with great detail, and get a much deeper understanding...