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First stop, Jupiter.
This was the closest view of the old and massive storm that gives Jupiter its trademark, the Great Red Spot. This is not a storm as we know it on Earth; it has been raging on Jupiter for at least 400 years when humans first observed the giant planet. Three Earths can fit into the storm, which is similar to a hurricane. The Voyagers discovered many hurricane-like storm systems rampaging in Jupiter's atmosphere.
The biggest surprise that Voyager sent home was the discovery of active volcanos on the moon Io.