~Nasa~ South Polar Vortex Discovered on Titan [1]
[2]
South Polar Vortex Discovered on Titan
Image Credit: Cassini Imaging Team [3], ISS [4], JPL [5], ESA [6], NASA [7]
Explanation: What's happening over the south pole of Titan? A vortex of haze [8] appears to be forming, although no one is sure why. The above natural-color image [9] shows the light-colored feature. The vortex [10] was found on images taken last month when the robotic Cassini spacecraft [11] flew by the unusual atmosphere-shrouded moon of Saturn. Cassini was only able to see the southern vortex [12] because its orbit around Saturn [13] was recently boosted out of the plane where the rings and moons move. Clues as to what created the enigmatic feature are accumulating, including that Titan [14]'s air appears to be sinking in the center and rising around the edges. Winter, however, is slowly descending on the south of Titan, so that the vortex [15], if it survives, will be plunged into darkness over the next few years.
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