Before the joint NASA/ESA Cassini-Huygens mission, humanity only knew what had been learned, decades earlier, with the previous limited, rapid "fly-by" Pioneer and Voyager missions. Cassini-Huygens spent more than 13 years in wildly varied orbits around Saturn, allowing the spacecraft to pass near many of its moons, as well as execute a soft-landing of its Huygens lander on the moon Titan. By mission end, it accumulated a mountain of imagery... see more