The sheer scale of the solar system's largest anticyclone is difficult for a traveler to grasp. From this vantage point, only a small part of Jupiter's Great Red Spot (left) can be seen. It rises at least eight kilometers above the surrounding clouds. Lightning bolts that could pulverize a city crackle at its base into the lower clouds. Winds at the outer edge of the anticyclone swirl at more than 400 kilometers an hour. The spot rotates counterclockwise once every seven days. The turbulence created by this mega storm is brutal, the sound, deafening. At least two planets the size of Earth could fit inside this monstrous storm, which has been spinning in Jupiter's southern hemisphere for at least 400 years. There is no sign that it will stop.

Watch video of rotating Red Spot

Weather Report from Jupiter

The size of the Red Spot