Image of Saturn collected by Pioneer 11 in September 1979
Credit - NASA
Heliocentric view of the Voyager trajectories
Maps of Tethys on Saturn taken by the Voyager
"Double ridges, dark spots, and icy plains on Europa, taken by the Galileo in 1998"
Artist's conception of Huygens probe descending to the planet's surface
Diagram of Cassini spacecraft