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 ...

Quipu, as it is called, was discovered by an international team led by Germany's Max Planck Institute for Extraterrestrial Physics (MPE). Their study describing the superstructure has been ...

It is not surprising that there are regions that are more densely populated by galaxies, and regions that are less populated.

In another shot to our cosmic ego, scientists have discovered a new superstructure, named Quipu, that stretches 1.39 billion light-years across and contains the equivalent mass of 200 quadrillion ...

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.