3D map of the cosmic web at a distance of 10.8 billion light years. Credit: Casey Stark (UC Berkeley) AND Khee-Gan Lee (MPIA)
3D map of the cosmic web at a distance of 10.8 billion light years from Earth. The map was generated from imprints of hydrogen gas observed in the spectrum of 24 background galaxies, which are located behind the volume being mapped. This is the first time that large-scale structures in such a distant part of the Universe have been mapped directly. The coloring represents the density of hydrogen gas tracing the cosmic web, with brighter colors representing higher density. Credit: Casey Stark (UC Berkeley) AND Khee-Gan Lee (MPIA)