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Jupiter missions typically require lengthy voyages often exceeding six years. For example, Pioneer probes and Voyager missions largely used gravitational assists, substantially reducing expected travel times. Still, missions intended for Jupiter orbit, such as Galileo, necessitate complex planning and execution, sometimes stretching into multiple years of travel.
Saturn’s Rings and Moons
Continuing this trend, missions to Saturn reflect similar complexities. Titan and Enceladus, Saturn's moons, intrigue scientists looking for signs of life or habitable conditions. These missions often require years of travel time in addition to challenges posed by the spacecraft’s fuel efficiency, energy needs, and the vast distance from the Sun.