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  • RESEARCH HIGHLIGHT

Cosmic bubble spawns one of the biggest galactic swarms ever seen

A protocluster of galaxies was born when the Universe was one billion years old.
Artist's impression of a protocluster forming in the early Universe

A cluster of galaxies takes shape in the early Universe in this artist’s rendering. Credit: ESO/M. Kornmesser

A colossal blob of young galaxies has been revealed as one of the biggest such groupings ever seen. Rarer still, it has been caught in the act of formation.

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Nature 562, 463 (2018)

doi: https://doi.org/10.1038/d41586-018-07028-2

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