The Planet Quiz Show  

Answer:   Jupiter

Jupiter has the shortest rotational (spin) period. It has been measured to be 9 hours, 55 minutes, 30 seconds in length.

[Hurricanes galore on Jupiter]
Jupiter photographed by the spacecraft Galileo... All of the ovals which can be seen in the lower part of the photograph are hurricanes. The largest spot appears red. That's the Great Red Spot, the biggest Jovian hurricane of them all and the biggest hurricane in the Solar System.

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