For nearly two years, the orbital path of NASA's Cassini spacecraft has limited the mission's encounters with Saturn's moons. These newly released photos of the icy moon Rhea mark the spacecraft's return to the planet's equatorial plane, realm of the ringed world's frozen satellites.
Image credit: NASA/JPL-Caltech/Space Science Institute
Cassini's orbit will remain nearly equatorial for the remainder of 2015, during which the spacecraft will have four close encounters with Titan, two with Dione and three with the geyser-moon, Enceladus.
The two views of Rhea were taken about an hour-and-a-half apart on Feb. 9, 2015, when Cassini was about 30,000 to 50,000 miles (50,000 to 80,000 kilometers) away from the moon. Cassini officially began its new set of equatorial orbits on March 16.
The views show an expanded range of colors from those visible to human eyes in order to highlight subtle color variations across Rhea's surface. In natural color, the moon's surface is fairly uniform. The image at right represents the highest-resolution color view of Rhea released to date.
The Cassini-Huygens mission is a cooperative project of NASA, ESA (European Space Agency) and the Italian Space Agency. NASA's Jet Propulsion Laboratory in Pasadena, California, manages the mission for the agency's Science Mission Directorate in Washington. JPL is a division of the California Institute of Technology in Pasadena. The Cassini imaging operations center is based at the Space Science Institute in Boulder, Colorado.
Color us excited. More info here.
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