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from: http://www.nasa.gov/mission_pages/cassini/multimedia/pia09187.html and http://www.msnbc.msn.com/id/17816192/from/ET/
This nighttime movie of the depths of the north pole of Saturn taken by the visual infrared mapping spectrometer onboard NASA's Cassini Orbiter reveals a dynamic, active planet lurking underneath the ubiquitous cover of upper-level hazes. The defining feature of Saturn's north polar regions--the six-sided hexagon feature--is clearly visible in the image.