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8 remarkable images of Neptune

By: Katherine Butler on Jan. 12, 2011, 12:05 p.m.
swirling dark blue spot

Photo: NASA

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Great Dark Spot

Voyager 2 took this photo of Neptune's gigantic anti-cyclonic storm in 1989. Considered to be much like Jupiter's Red Spot, the storm was thought to span 8,000 by 4,100 miles. It was believed to have a vortex structure. When Hubble turned its lens on Neptune in 1994, the Great Dark Spot was found to have vanished. A new storm just like it was found roaming the northern hemisphere of the planet.