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Astronomers find a cosmic titan in the early universe

An international team of astronomers has discovered a titanic structure in the early universe, just 2 billion years after the Big Bang. This galaxy proto-supercluster, nicknamed Hyperion, is the largest and most massive structure to be found so early in the formation of the universe, with a calculated mass more than 1 million billion times that of the sun. This enormous mass is similar to that of the largest structures observed in the universe today, but finding such a massive object in the early universe surprised astronomers. Located in the constellation of Sextans (The Sextant), Hyperion was identified by a novel technique developed to analyze the vast amount of data obtained from the VIMOS Ultra-Deep Survey. The VIMOS instrument can measure the distance to hundreds of galaxies at the same time, making it possible to map the position of galaxies within the forming supercluster in 3D.

Visit Website | Image credit: ESO/Luis Calçada and Olga Cucciati