Astronomers have discovered what appear to be massive galaxies dating back to within 600 million years of the Big Bang, suggesting the early universe may have had a stellar fast-track that produced these “monsters.”
CAPE CANAVERAL, Fla. —
“While most galaxies in this era are still small and only gradually growing larger over time,” he said in an email, “there are a few monsters that fast-track to maturity. Why this is the case or how this would work is unknown.” “The revelation that massive galaxy formation began extremely early in the history of the universe upends what many of us had thought was settled science,” Leja said in a statement. “It turns out we found something so unexpected it actually creates problems for science. It calls the whole picture of early galaxy formation into question.”
The researchers still are awaiting official confirmation through sensitive spectroscopy, careful to call these candidate massive galaxies for now. Leja said it’s possible that a few of the objects might not be galaxies, but obscured supermassive black holes.
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