This storm is the largest and longest lasting observed on Saturn by either NASA's Voyager or Cassini spacecraft. The storm's active phase ended in June 2011, but, as of Oct. 2011, the turbulent clouds have continued to linger in the atmosphere. As seen in these and other Cassini images, the storm encircles the planet whose circumference at these latitudes is 186,000 miles (300,000 kilometers). From north to south, it covers a distance of about 9,000 miles (15,000 kilometers), which is one-third of the way around Earth. It encompasses an area of 2 billion square miles (5 billion square kilometers), or eight times the surface area of Earth. This storm is about 500 times the area of the biggest of the southern hemisphere storms observed by Cassini (see The Dragon Storm).