According to cosmology, galaxy filaments are the largest known structures in the known universe. They are classified on the basis of the boundaries between large voids in the universe. They span for a length of 163 to 261 million light-years, which roughly translate to 50 to 80 megaparsecs. The Hercules–Corona Borealis Great Wall is among the largest in our universe and spans for nearly 10billion light years across. They form along and follow web-like strings of dark matter which is believed to form long, thin walls of super-galactic clusters. It is also believed that this ‘dark matter’ constitutes about 80% of all mater present in the universe and is the basis of the grand scheme of things if any such phenomenon is believed to exist.
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