One Of The Largest Shockwaves Ever Seen In The Universe

A photograph, taken by the Spitzer space telescope and a ground-based telescope in Spain, shows the Stephan’s Quintet galaxy cluster, with one of the largest shockwaves ever seen in the Universe. The green arc in the photograph is the point which two galaxies are colliding. There are actually 5 galaxies in this photograph, but two have been so beaten up, all that’s left are their bright centers. The galaxies are located 300 million light-years away in the Pegasus constellation.

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