Astronomers have spotted the largest known object in the universe.

Alex Wilkins7 February 2025
The Quipu superstructure is enormous, spanning 1.4 billion light years – and it could violate one of our fundamental assumptions about the universe.

Hans Böhringer at the Max Planck Institute for Physics in Munich and his colleagues have named this cosmic structure Quipu after an Incan counting system made from knotted rope.