Team discovers ultra-massive galaxies in early Universe that challenge standard cosmology
news.ucsc.edu
An international team of astronomers has identified three ultra-massive galaxies—each nearly as massive as the Milky Way—already in place within the first billion years after the Big Bang. The discovery is surprising because it indicates that the formation of stars in the early Universe was far more efficient than previously thought, challenging current models of galaxy formation.
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The original was posted on /r/science by /u/Wagamaga on 2024-11-13 17:28:03+00:00.

Original Title: Astronomers has identified three ultra-massive galaxies. The three massive galaxies reported have stellar masses comparable to today’s Milky Way, forming stars nearly twice as efficiently as their lower-mass counterparts and as galaxies at later times.