Dark Matter Clumps Closeup

Clumps and filaments of dark matter (black areas) serve as the scaffolding for the formation of cosmic structures made of regular matter (bright areas), including stars, galaxies and galaxy clusters. (Simulation: Y-Y. Mao, R. Wechsler, KIPAC/Stanford/SLAC; Visualization: R. Kaehler, KIPAC/SLAC)