How the Great Cold Spot Changes Dramatically in Shape and Size (IMAGE)
Caption
This image shows how the Great Cold Spot changes dramatically in shape and size on different days. Each view comes from a different day, with the spot sometimes almost disappearing. Because the feature is dynamic, changing over both daily and yearly timescales, it is likely that this feature is a weather system that is in a constant state of change. But despite this variability, it is seen again fifteen years later, showing it must reform again and again.
Credit
Based on data from IRTF/NASA.
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