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The original was posted on /r/science by /u/Wagamaga on 2024-11-22 10:41:47+00:00.

Original Title: A massive collision of galaxies sparked by one travelling at a scarcely-believable 2 million mph (3.2 million km/h) has been seen in unprecedented detail by one of Earth’s most powerful telescopes. The dramatic impact was observed in Stephan’s Quintet, a nearby galaxy group made up of five galaxies