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The Great Red Spoton Jupiter is a cyclonic storm system, a hurricane three times the size of Earth, that has lasted for hundreds or thousands of years. The storm has changed only slightly since Giovanni Cassini observed it in the 1600s. It has become more circular over time, but probably will remain oval.

The largest cyclonic storm on the planet Jupiter, it has has lasted at least 200 years, and possibly much longer. It is apparently only slowly shrinking in size. The prevailing theory is that eddies in the thick, dense atmosphere are added to the Spot over time. Its towering cloud tops prevent the loss of heat from the underlying layers, and there is no solid surface to diminish it through friction (as occurs with storms on Earth).

The color darkens or fades over time, coinciding with changes in the atmosphere at that latitude.

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9y ago

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