The JUpiter ICy moons Explorer (JUICE) is a space mission planned for launch in 2022 and it will arrive at Jupiter in 2030. It will spend three years observing Jupiter and its largest moons, Ganymede, Callisto, and Europa. Eva Wirström is a senior reseracher at Chalmers and is working on the Science team for one of the instruments (Submillimetre Wave Instrument, SWI) onboard the JUICE mission. I am working together with Eva on the radiative transfer modelling of the atmospheres of the icy moons. For the radiative transfer, the LIne Modelling Engine (LIME) is used.