Our universe is a whopping 13.7 billion years old, and we still understand very little about how it all began. Sometimes, even what we thought we knew turns out to be off the mark: Researchers just learned that the most ancient galaxies — those that were around before the universe hit its one billionth birthday — are much brighter than they expected them to be. As researchers strive to learn more, their work is illuminating the secrets of the early universe.
It Started With a Bang
What This Means for Old Galaxies
Written by Elizabeth Howell May 28, 2019
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