The Great Dark Spot is the name given to a large dark spot on the surface of Neptune. It is similar in appearance to the Great Red Spot on Jupiter. There are several other dark spots on Neptune as well as the larger one, but the Great Dark Spot is a name often given to all of them collectively.


Neptune's Great Dark Spot is a similar size to Earth, measuring around 13,000 kilometers in diameter. Around it, winds were measured with speeds of up to 2,400 kilometers an hour, the fastest in the Solar System.

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