Pieces of plastic in the sea, chlorophyll content in bodies of water, the degree of drought in fields – since April 2022, the German environmental satellite EnMAP has been orbiting our Earth and will be collecting myriad data during its five-year mission. The Fraunhofer Institute for Microengineering and Microsystems IMM and the Fraunhofer Institute for Applied Optics and Precision Engineering IOF have developed various core components for the optical system of the hyperspectral satellite.