The Hercules-Corona Borealis Great Wall, identified in 2013-2014 by István Horváth, Jon Hakkila and Zsolt Bagoly from a clustering of gamma-ray bursts at redshift around 2, is estimated to span roughly 10 billion light-years — about a ninth of the observable universe's diameter. Its reality is debated, since it is inferred from a statistical excess of a few dozen bursts and challenges the expected scale of cosmic homogeneity.
The question, scope, and sources behind this Registry record.
The Hercules-Corona Borealis Great Wall, identified in 2013-2014 by István Horváth, Jon Hakkila and Zsolt Bagoly from a clustering of gamma-ray bursts at redshift around 2, is estimated to span roughly 10 billion light-years — about a ninth of the observable universe's diameter. Its reality is debated, since it is inferred from a statistical excess of a few dozen bursts and challenges the expected scale of cosmic homogeneity.
The greatest extent claimed for any coherent large-scale structure identified in the observable universe.
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Current frontiers derived from accepted Claims.
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The frontier as it changed over time.
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1 accepted Claim, with 1 linked evidence records.
Permanent ID limitsregistry.com/limits/LR-LARGEST-KNOWN-COSMIC-STRUCTURE
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Limits Registry. LR-LARGEST-KNOWN-COSMIC-STRUCTURE. Largest claimed structure in the universe. 2026.