Astronomers have identified the largest known structure in the universe, spanning 1.4 billion light years across and comprising nearly 70 galactic superclusters. The colossal entity is estimated to be hundreds of thousands of times more massive than a single galaxy like the Milky Way. Researchers at the Max Planck Institute for Physics in Munich, Germany, have named this vast structure “Quipu” after an ancient Incan counting system made from knotted rope.
Source: https://www.newscientist.com/article/2467487-astronomers-have-spotted-the-largest-known-object-in-the-universe