![This special color composite made from Voyager 2 narrow-angle frames taken on June 28, 1979, has been processed to exaggerate color differences within the naturally colorful Jovian atmosphere. This special color composite made from Voyager 2 narrow-angle frames taken on June 28, 1979, has been processed to exaggerate color differences within the naturally colorful Jovian atmosphere.](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-nasa07.jpg?quality=85&w=2400)
By TIME Staff
![Rings Of Saturn Rings Of Saturn](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-nasa02.jpg?quality=75&w=2400)
![View of volcanic eruptions of Pele on mo View of volcanic eruptions of Pele on mo](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-nasa04.jpg?quality=75&w=2400)
![Close up of Saturn and its rings, photographed by Voyager 2, 1981. The clear ring structure of Saturn can be seen in this photograph taken form the Voyager 2 spacecraft on Jan. 1. 1981.](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-02.jpg?quality=75&w=2400)
![Closeup of Jupiter's Great Red Spot, ext Closeup of Jupiter's Great Red Spot, ext](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-01.jpg?quality=75&w=2400)
![This color image of the Jovian moon Europa was acquired by Voyager 2 during its close encounter on Monday morning, July 9, 1979. This color image of the Jovian moon Europa was acquired by Voyager 2 during its close encounter on Monday morning, July 9, 1979.](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-nasa06.jpg?quality=75&w=2400)
![NASA's Voyager 2 took this 'true color' photograph of Saturn on July 21, 1981, when the spacecraft was 33.9 million kilometers (21 million miles) from the planet. Two bright, presumably convective cloud patterns are visible in the mid-northern hemisphere and several dark spoke-like features can be seen in the broad B-ring (left of planet). The moons Rhea and Dione appear as blue dots to the south and southeast of Saturn, respectively. Voyager 2 made its closest approach to Saturn on Aug. 25, 1981. The Voyager project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-nasa09.jpg?quality=75&w=2400)
![Close up of Ganymede, one of the moons of Jupiter, 1979. The site of an impact on the icy surface of Jupiter's largest moon, Ganymede, can be see in this image taken from the Voyager 2 spacecraft on Jan. 1, 1979.](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space.jpg?quality=75&w=2400)
![Neptune's largest satellite Triton taken from the Voyager 2 Neptune's largest satellite Triton taken from the Voyager 2](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-nasa08.jpg?quality=75&w=2400)
![Neptune's Great Dark Spot, accompanied by white high-altitude clouds as photographed by the Voyager 2 spacecraft.](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-nasa10.jpg?quality=75&w=2400)
![This special color composite made from Voyager 2 narrow-angle frames taken on June 28, 1979, has been processed to exaggerate color differences within the naturally colorful Jovian atmosphere. This special color composite made from Voyager 2 narrow-angle frames taken on June 28, 1979, has been processed to exaggerate color differences within the naturally colorful Jovian atmosphere.](https://api.time.com/wp-content/uploads/2014/08/voyager-2-space-nasa07.jpg?quality=75&w=2400)
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