CfA2 Great Wall
Immense galaxy filament / From Wikipedia, the free encyclopedia
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"Great Wall of Galaxies" redirects here. For other "great walls" of galaxies, see Great Wall (disambiguation).
The Great Wall (also called Coma Wall), sometimes specifically referred to as the CfA2 Great Wall, is an immense galaxy filament. It is one of the largest known superstructures in the observable universe.
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This structure was discovered c. 1989 by a team of American astronomers led by Margaret J. Geller and John Huchra while analyzing data gathered by the second CfA Redshift Survey of the Center for Astrophysics | Harvard & Smithsonian (CfA).