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GRB 090423 was a gamma-ray burst (GRB) detected by the Swift Gamma-Ray Burst Mission on April 23, 2009, at 07:55:19 UTC whose afterglow was detected in the infrared and enabled astronomers to determine that its redshift is z = 8.2, making it one of the most distant objects detected at that time with a spectroscopic redshift (GN-z11, discovered ...
In cosmology, galaxy filaments are the largest known structures in the universe, consisting of walls of galactic superclusters.These massive, thread-like formations can commonly reach 50 to 80 megaparsecs (160 to 260 megalight-years)—with the largest found to date being the Hercules-Corona Borealis Great Wall at around 3 gigaparsecs (9.8 Gly) in length—and form the boundaries between voids ...
ULAS J1342+0928 is the third-most distant known quasar detected and contains the second-most distant and oldest known supermassive black hole, [1] [5] [6] [7] at a reported redshift of z = 7.54. The ULAS J1342+0928 quasar is located in the Boötes constellation . [ 3 ]
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2013 – The Hercules–Corona Borealis Great Wall, a massive galaxy filament and the largest known structure in the universe, was discovered through gamma-ray burst mapping. [ 19 ] [ 20 ] [ 21 ] 2014 – The Laniakea Supercluster , the galaxy supercluster that is home to the Milky Way is defined via a new way of defining superclusters ...
Here's how faint dwarf galaxies, revealed by JWST, sparked the reionization epoch and ended the universe's dark ages with their powerful radiation. Astronomers Found the Ancient Light Source That ...
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This is a list of the largest cosmic structures so far discovered. The unit of measurement used is the light-year (distance traveled by light in one Julian year; approximately 9.46 trillion kilometres).