APOD
This storm on the southern pole of Saturn, taken by the Cassini spacecraft, has been raging for billions of years at wind speeds twice those of the strongest category five hurricanes here on Earth. The Cassini used its Imaging Science Subsystem at a wide-angle lens to photograph this phenomona, which stretches more than 8,000 kilometers across, much larger than Earth's. It's unknown why the storm is stuck to the pole, but it's expected to stay put there for billions of years. To give you a scope of the scale of the picture, each pixel represents approximatley 17 kilometers. The image has an area of 302,400 pixels. Multiiply that by 17, and you get 5,140,800 kilometers if I did my math correctly. Wow.