Huge cosmic collisions could help identify dark matter

We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue. Huge cosmic collisions could help identify dark matter Dark matter interacts with itself even less than previously thought, narrowing down the options for what this mysterious substance might be, according to new research involving Durham University. 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. The results are published . To learn more about dark matter, which is invisible, researchers can study it in a way similar to experiments on visible matter — by watching what happens when it bumps into things.