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Cassini-Huygens

Space probe. Launched in 1997, it consisted of the U.S. Cassini spacecraft, which orbited Saturn, and the European Huygens probe, which landed on Titan in 2005. Data from Huygens showed a shoreline with erosion features and a river delta. Cassini discovered lakes of liquid methane on Titan, geysers of water ice on Enceladus, and six new moons and two new rings of Saturn.

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