ESA’s Jupiter Icy Moons Explorer, Juice, is set to embark on a seven-year cruise to Jupiter starting May 2022. The mission will investigate the emergence of habitable worlds around gas giants and the Jupiter system as an archetype for the numerous giant planets now known to orbit other stars.
During the tour of the Jupiter system, Juice will flyby Callisto, an ancient, cratered world that may harbor a subsurface ocean.
The Callisto flybys will also change the angle of Juice’s orbit with respect to Jupiter’s equator, making it possible to investigate the giant planet's polar regions and environment at higher latitudes.