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What is the Great Wall of the Universe?
What is the Great Wall of the Universe?
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The Great Wall is a large-scale structure of galaxies, including the Sloan Great Wall, which is one of the largest known cosmic structures. It illustrates the filamentary distribution of matter in the universe.
The Hercules–Corona Borealis Great Wall (HCB) or simply the Great Wall is a galaxy filament that is the largest known structure in the observable universe, measuring approximately 10 billion light-years in length (the observable universe is about 93 billion light-years in diameter).