Category: dione

A vibrant false-color image Saturn, along with moons Rhea and Dione, imaged by Voyager 2 on July 21, 1981.

Dione, moon of Saturn, photographed by the Cassini space probe on April 12, 2015. (NASA/JPL)

July 21, 1981 – Planet Saturn, along with moons Rhea and Dione, photographed by the Voyager 2 probe. The original caption from the 1982 NASA book Voyages to Saturn: “The rings of Saturn appeared much brighter to Voyager 2 than to Voyager 1 because of increasing solar illumination during the nine-month interval between encounters. On July 21, from a distance of 34 million kilometers, several prominent cloud features were already visible–evidence of increased activity in the atmosphere of Saturn, as well as of a more sensitive camera on the Voyager 2 spacecraft.“ (NASA)

Future explorers on Dione, moon of Saturn, illustrated by planetary scientist William K. Hartmann, July 1981.

Dione, moon of Saturn, photographed by the Cassini space probe on April 12, 2015. (NASA/JPL)

Planet Saturn, along with moons Dione and Rhea, observed by the Cassini space probe on March 11, 2011.

Dione in front of Saturn, observed by the Cassini probe in September 2005.

November 12, 1980 – During Voyager 1’s closest approach to the planet Saturn, the space probe captured this image of the moon Rhea from a distance of 73,000 kilometers (45,000 miles).

(NASA)

November 12, 1980 – During Voyager 1’s closest approach to the planet Saturn, the space probe captured this image of the crater-pocked moon Dione from a distance of 129,000 kilometers.

(NASA/Jet Propulsion Laboratory)

ON THIS DAY: Dione and Saturn, observed by the Cassini space probe on October 11, 2005.

(NASA)