Astronomers have discovered a structure thought to be a 'protocluster' of galaxies on its way to developing into a galaxy supercluster. Observations show the protocluster, which is located 11 billion light-years from Earth, as it appeared when the universe was 3 billion years old, when stars were produced at higher rates in certain regions of the cosmos.
source https://www.sciencedaily.com/releases/2021/10/211027172624.htm
source https://www.sciencedaily.com/releases/2021/10/211027172624.htm
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