Hyperion - 'most massive structure' and largest galaxy cluster in early universe discovered

A large structure in the early universe, formed just two billion years after the Big Bang, was discovered by Italian and American astronomers, according to a study published on Wednesday in the journal Astronomy & Astrophysics.

The galaxy proto-supercluster, nicknamed Hyperion, has been the largest and most massive structure yet found at such a remote time and distance.

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Hyperion is the largest and most massive structure to be found so early in the formation of the Universe, or 11.5 billion years ago, with a calculated mass more than one million billion times that of the Sun, according to the study as reported by news agency Xinhua.

"Superclusters closer to Earth tend to a much more concentrated distribution of mass with clear structural features," said Brian Lemaux, project scientist at University of California, Davis, as quoted by the news agency.

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"But in Hyperion, the mass is distributed much more uniformly in a series of connected blobs, populated by loose associations of galaxies," said Lemaux.