Tuesday, July 15, 2014
Here are a B&W, a true-color, and a false-color image of Saturn's north polar hexagon storm, taken by the Cassini spacecraft.
The storm looks like a hurricane on Earth, but is much bigger: The eye of the storm is about 1,245 miles (2,000 km) across, and clouds at the outer edge of the hexagonal storm are moving at more than 310 miles per hour (500 kph).
No one knows why this storm is locked onto the pole. Terrestrial hurricanes get their energy from warm water, but no one knows what energy source is powering this storm on Saturn. No one knows why it is hexagonal in shape.
Cassini is getting better views of the poles because it is using Titan’s gravity to change the angle of its orbit.