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abell-3411-and-3412-astronomers-discover-powerful-cosmic-double-whammyUsing data from NASA's Chandra X-ray Observatory and several other telescopes, astronomers have discovered a cosmic one-two punch unlike any ever seen in a pair of colliding galaxy clusters called Abell 3411 and Abell 3412. This result shows that an eruption from a supermassive black hole combined with a galaxy cluster merger can create a stupendous cosmic particle accelerator.   This composite image contains X-rays from Chandra (blue) that reveals diffuse emission from multi-million-degree gas in the two clusters. The comet-shaped appearance of the hot gas provides clear evidence that the two clusters are colliding and merging. The "head" of the comet is hot gas from one cluster plowing through the hot gas of the other cluster, in...