File:Solar System Montage of Voyager Images - GPN-2003-000006.jpg

English: This montage of images taken by the Voyager spacecraft of theplanets and four of Jupiter's moons is set against a false-colorRosette Nebula with Earth's moon in the foreground. Studying andmapping Jupiter, Saturn, Uranus, Neptune, and many of theirmoons, Voyager provided scientists with better images and datathan they had ever had before or expected from the program. Although launched sixteen days after Voyager 2, Voyager 1'strajectory was a faster path, arriving at Jupiter in March 1979.Voyager 2 arrived about four months later in July 1979. Bothspacecraft were then directed to Saturn with Voyager 1 arrivingin November 1980 and Voyager 2 in August 1981. Voyager 2 wasthen diverted to the remaining gas giants, Uranus in January1986 and Neptune in August 1989. Data collection continues byboth Voyager 1 and 2 as the renamed Voyager Interstellar Missionsearches for the edge of the solar wind influence (the heliopause) and exits the Solar System. A shortened list of thediscoveries of Voyager 1 and 2 include:the discovery of theUranian and Neptunian magnetospheres (magnetic environmentscaused by various types of planet cores); the discovery oftwenty-two new satellites including three at Jupiter, three atSaturn, ten at Uranus, and six at Neptune; Io was found to haveactive volcanism (the only other Solar System body than Earthto be confirmed); Triton was found to have active geyser-likestructures and an atmosphere; Auroral Zones (where gases become excited after being hit by solar particles) werediscovered at Jupiter, Saturn, and Neptune; Jupiter was foundto have rings; Neptune, originally thought to be too cold tosupport such atmospheric disturbances, had large-scale storms.