Great Red Spot


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A raging red swirling storm located in Jupiter's upper atmosphere that can be seen as a red spot on Jupiter from Earth. The storm has been observed for the last 300 years, and appears to rotate counterclockwise, like a hurricane, once every six days. During the 1979 Voyager II encounter with Jupiter, the Red Spot measured 10,000 by 20,000 kilometers- larger than the Earth!