Explore spectacular views of Saturn's polar jet stream.
A peculiarly shaped wind pattern has been whipping around Saturn's north polar region for decades. First discovered by NASA’s Voyager mission in the early 1980s, the planet’s six-sided jet stream, known as the hexagon, is somewhat of an oddity. Diverse bands of winds and rotating vortices circle the eye of a hurricane-like storm centered on the north pole. Moving at more than 200 mph, the jet stream is several thousand miles long and could encompass Earth twice. In 2012, NASA’s Cassini spacecraft captured the most detailed and comprehensive images of the speedy system yet. Watch the video to see Saturn's jet stream in motion.