Once upon a time, at the far end of the universe, two galaxy clusters collided. Their head-on encounter tore apart the galaxies and left behind two reconfigured heaps of stars and gas, separating again and moving apart from each other, destiny unknown.
Four billion years later, a curious group of water-based humanoid life-forms tries to make sense of the galaxies� collision. They point their
Tuesday, 3 January 2017
The Bullet Cluster as Evidence against Dark Matter
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- Observable consequences of quantum gravity were long thought inaccessible by experiment.
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