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How Fast Are Neptune's Winds?

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Quick Answer

NASA reports that a storm on Neptune produced winds of about 750 mph during a visit by Voyager 2 in 1989. Neptune gets little energy from the sun due to the vast distance that separates them, yet it is capable of producing winds three times stronger than those on Earth.

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The 1989 mega storm on Neptune was large enough to envelop the Earth. NASA nicknamed it the "Great Dark Spot." The storm has since disappeared; however, two more large storms have since been seen by the Hubble Space Telescope. The fastest tornadic wind ever recorded on Earth was estimated to be about 302 mph in 1999.

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