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Nighttime Sky View of Future Galaxy Merger: 3.9 Billion Years

Nighttime Sky View of Future Galaxy Merger: 3.9 Billion Years
Nighttime Sky View of Future Galaxy Merger: 3.9 Billion Years During the first close approach, the sky is ablaze with new star formation, which is evident in a plethora of emission nebulae and open young star clusters. NASA, ESA, Z. Levay and R. van der Marel (STScI), T. Hallas, and A. Mellinger