Q: The Bullet galaxy cluster 1E0657-56 is one of the most massive gravitationally bound objects in the universe. Approximately how many times more massive is it than our Milky Way galaxy?
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Chandra X-ray Center, Operated for NASA by the Smithsonian Astrophysical Observatory This site was developed with funding from NASA under Contract NAS8-03060.
9.9%
16.8%
29.8%
43.5%
