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HubbleSite Hubble Pinpoints Farthest Protocluster of Galaxies Ever Seen

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Space Telescope Science

NASA's Hubble Space Telescope has uncovered a cluster of galaxies in the initial stages of construction – the most distant such grouping ever observed in the early universe.

In a random sky survey made in near-infrared light, Hubble spied five tiny galaxies clustered together 13.1 billion light-years away. They are among the brightest galaxies at that epoch and very young, existing just 600 million years after the universe's birth in the big bang.

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