Atmosphere-Space Interaction Monitor (ASIM) is a project led by the European Space Agency. It will place cameras and x-ray- and γ-detectors on the International Space Station, where it will observe the upper atmosphere, looking for sprites, jets and elves and terrestrial gamma-ray flashes in connection with thunderstorms. It is hoped that measurements of these phenomena from space will contribute to our understanding of the upper atmosphere.
ASIM is scheduled to be mounted on the Columbus External Payload Facility in 2017 (originally planned to be done in 2014). Danish tech company Terma A/S is running the technical part of the project for the ESA and DTU Space (National Space Institute) from the Technical University of Denmark provides the scientific leadership of the project.