Saturn's atmosphere is marked by swirling clouds, bands of colored gas, and turbulent storms. Winds can whip around the top of Saturn's atmosphere at almost 1,100 miles per hour (1,700 kph)! That's three times faster than the winds on Jupiter. Except at the poles, the winds whip around Saturn from west to east.
The atmosphere is mostly hydrogen and helium. In the middle levels of the atmosphere are clouds made of water crystals, colored blue. Above them are orange clouds made of ammonium hydrosulfide crystals. White clouds of ammonia crystals lie above the orange clouds. These upper clouds thin out into a haze at the very top of the atmosphere.
