A New View of the Universe’s Dark Side April 6, 2021• Physics 14, s44 The Dark Energy Survey Collaboration has updated a model of the Universe to correctly capture more galaxy measurements. DES × The standard cosmological model describes the Universe as expanding at an accelerating rate, with the dominant factors in the expansion rate being two mysterious substances: dark matter and dark energy. To better understand the influences of these dark substances, researchers started mapping the Universe’s galaxies, which should provide clues to the distribution of all the Universe’s matter. Now, the collaboration behind this work—the Dark Energy Survey (DES)—has built a model that can simultaneously incorporate three types of measurements made from these maps. In doing so, the group establishes new constraints on standard-comological-model parameters that describe the distribution and evolution of dark matter and dark energy [1].