HST Finds New Dark Spot

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HST Finds New Dark Spot
In June 1994, the Hubble telescope revealed that the Great Dark Spot found by Voyager 2 was missing. This new image taken on November 2, shows that a new spot near the limb of the planet has formed. Like its predecessor, the new spot has high altitude clouds along its edge, caused by gasses that have been pushed to higher altitudes where they cool to form methane ice crystal clouds. The dark spot may be a zone of clear gas that is a window to a cloud deck lower in the atmosphere.

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