(large candidate slab of galaxies discovered in 2013)
The Hercules-Corona Borealis Great Wall
(Her-CrB GW) is a candidate galaxy filament
proposed in 2013 based on investigation of gamma-ray bursts (GRBs).
The evidence for it is the many GRBs from a region, implying the
region has a relatively dense population of GRB sources,
presumed to be associated with galaxies.
The GRB's redshifts are in the range of 1.6-2.1, indicating a
distance on the order of 10 billion light-years, which would indicate
a longer dimension of 10 billion light-years, with 7.2 billion
light-years width and 1 billion light-years thickness.
It would displace the Sloan Great Wall, which was the largest previously
known structure in the universe.
Its size presents scientific
questions that promise to influence theories and research.