The eROSITA satellite observes the entire sky in the X-ray range. Developed and built at the Max Planck Institute for Extraterrestrial Physics (MPE) in Garching, it was launched from the Baikonur Cosmodrome on July 13, 2019, and has carried out a total of four complete sky surveys. It observed more than one million sources, many of which were previously unknown.
At Café&Kosmos, Dr. Susanne Friedrich from MPE will explain how eROSITA uses this to investigate the structure of the universe and to test cosmological models, including dark energy. She will also present what other results astronomers have so far been able to obtain from the eROSITA data on countless celestial objects such as active galactic nuclei, supermassive black holes, binary stars and supernova remnants.