Seen during testing, RadCube (led by C3S with MTA EK in Hungary, Imperial College London in UK, and Astronika in Poland): a 3-unit CubeSat mission to demonstrate miniaturised instrument technologies that measure in-situ the space radiation and magnetic field environment in Low Earth Orbit for space weather monitoring purposes. The platform developed by C3S is also being demonstrated in flight. The mission was launched by Vega launcher VV19 in August 2021 and is now operational in low-Earth orbit.