With a length of 428 megaparsecs, or around 1.39 billion light-years, the superstructure is the biggest ever spotted.

The Incas had a system of accounting that relied on the quipu. Cords of various colours were attached to a main cord with knots. The number and position of knots as well as the colour of each cord ...

A quipu is an ancient recording device used by Andean civilizations, and particularly the Incas. It consists of a series of colored strings of various lengths, with knots tied in different positions.

Named "Quipu" after an Incan measuring system, the superstructure spans an astonishing 1.3 billion light-years across which is over 13,000 times the length of the Milky Way, according to a report ...