CASSINI-HUYGENS Saturn's big storm

[First paragraph] In contrast to the dramatic meteorology of Jupiter, Saturn’s golden-yellow hues provide an air of calmness, with slow seasonal changes from wintry blues to summertime yellows as the temperatures, chemistry and hazes evolve over Saturn’s 29.5-year orbit. But, once every Saturnian year, a gigantic storm of billowing white cloud activity erupts from those serene cloud decks.