Goals: This mission concept calls for two robotic orbiters working together to determine whether the Jovian system harbors habitable worlds. The orbiters would perform an extensive study of the Jovian system before finally focusing on the intriguing moons Europa and Ganymede. The spacecraft -- NASA's Jupiter Europa Orbiter and the European Space Agency's Jupiter Ganymede Orbiter -- would determine the extent of subsurface oceans and ice shells on the targeted moons. The moon studies placed in the context of the Jovian system would allow for comparative planetology and would provide significant insight into the emergence of habitable worlds around gas giants.

Accomplishments: This mission is a concept being considered for further development.