FRANCE: Astronomers have shed a little more light on dark matter, the mysterious substance which makes up most of the universe.
Research involving scientists from Durham University has shown that dark matter interacts with itself even less than previously thought, narrowing down the options for what this mysterious substance might be.
Astronomers made the finding using observations from the NASA/ESA Hubble Space Telescope and NASA’s Chandra X-ray Observatory to study how dark matter in clusters of galaxies behaves when the clusters collide.
