From the producer, Jason Major:
"This is an RGB-composite of Saturn's moon Titan made from raw Cassini images acquired on Jan. 2, 2014. The moon’s south polar vortex can be seen just along the terminator, as well as its cyan-colored upper-level haze layer."
The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.
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Credit: NASA/JPL-Caltech/Space Science Institute/Jason Major.