Figure 2. (Left) Cassini images of a Saturn storm cloud (2000 km across) at 35°South on the planet’s nightside from November 2009. The bright spots with diameters around 200 km are flash-illuminated cloud tops. (Right) Cassini image of the Great White Spot (GWS) on Saturn at 35°North from February 2011.

Images from NASA/JPL/SSI.