====== Saturn's polar 'hexagon' ====== Saturn's 'hexagon' is a large persistent cloud-pattern formation around the planet's 'North' pole. It was discovered as a result of analysis of images from NASA's //Voyager// mission in 1981. And subsequently confirmed by the //Cassini// probe. [see photos courtesy [[https://photojournal.jpl.nasa.gov/catalog/PIA21611|NASA]]] Various explanations for the pattern (none as yet generally accepted) have been suggested. They include the effects of turbulence, convection, and sheet-forming vortexes, or some combination of the three - see [[https://en.wikipedia.org/wiki/Saturn%27s_hexagon#Explanations_for_hexagon_shape|Wikipedia]].