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Hubble unveiled a violent encounter of two galaxies becoming one, 250 million light-years away: https://t.co/zxN7COvdkm http://pic.twitter.com/We3Bbq2lqz

— NASA Goddard Images (@NASAGoddardPix) October 20, 2017

via Twitter https://twitter.com/NASAGoddardPix

October 20, 2017 at 08:58PM