An X-Ray Map Reveals the Bones of the Universe

This x-ray map is much more than a beautiful desktop background.By Allison KuboOn June 19, the eRosita instrument aboard the Russian-German "Spectrum-Roentgen-Gamma" (SRG) mission finished cataloging more that 1 million high energy x-ray sources more than had ever been recorded before this study. The image above shows our sky illuminated in x-rays, the range of the electromagnetic spectrum which is far more energetic than visible light. The red colors indicate low energies (0.3-0.6 keV), green f...