Dark matter from 12 billion years ago detected for the 1st time

An artist

Scientists have discovered dark matter around galaxies that existed about 12 billion years ago, the earliest detection yet of this mysterious substance that dominates the universe.

The findings, achieved by a collaboration led by researchers from Japan’s Nagoya University, suggest that dark matter in the early universe is less ‘clumpy’ than predicted by many current cosmological models. If further work confirms this theory, it could change scientists’ understanding of how galaxies evolve and suggest that the fundamental rules governing the cosmos could have been different when the 13.7 billion-year-old universe was just 1.7 billion years old.