This amazing video shows images from Cassini, a spacecraft that's orbited Saturn for nine years. A huge hurricane is the star of the show.
With 300 mile per hour winds, the storm is the size of two Earths. Its eye alone is a massive 1,250 miles wide. Strangely, the storm has gravitated toward the planet's north pole. But the biggest mystery, NASA reps say, is how the hurricane came to be in the absence of oceans and in a mostly hydrogen atmosphere that contains very little water vapor.