 European XFEL is a state-of-the-art facility that provides access to ultra-bright X-ray light pulses for scientists studying a wide range of topics. It consists of a superconducting linear accelerator, a beamline system, and six scientific instruments designed to take advantage of the unique characteristics of the X-ray light produced by the accelerator. This article was authored by Thomas Skentcher, Christian Bresler, Jan Grunert, and others.