Cassini carried the Huygens probe to Saturn’s moon Titan. The Cassini–Huygens mission launched in 1997 as a joint project of NASA, the European Space Agency, and the Italian Space Agency.
The spacecraft entered orbit around Saturn in 2004. Huygens separated from Cassini and descended through Titan’s atmosphere on 14 January 2005, becoming the first probe to land in the outer Solar System and the first spacecraft to land on a moon other than Earth’s Moon. Cassini then continued observing Saturn, its rings, and its moons.
The mission is sometimes connected with Pandora because Pandora is another moon of Saturn, but Cassini did not carry a probe to Pandora. Cassini made extensive observations of many Saturnian moons, including Pandora, while its companion lander was specifically targeted at Titan.