Astronomers have discovered what may be the largest-scale structure in the known Universe, a group of galaxy clusters that spans about 1.3 billion light-years and has an estimated mass of 200 quadrillion solar masses.
The new structure has been named Quipu after an Inca system of counting and storing numbers using knots on strings. Like a Quipu string, the structure is complex, consisting of a long thread and multiple side threads. It spans about 1.3 billion light-years (over 13,000 times the length of our galaxy), making it possibly the largest object in the Universe by length, surpassing previous record holders such as the Laniākea supercluster.
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