SUNSET: 
Watch This (Sun) Spot
Sunspots change their shape and size as they travel across the face of the Sun. Catch an evolving sunspot group caught in the act.
Sunspots change their shape and size as they travel across the face of the Sun. Catch an evolving sunspot group caught in the act.
By: Paul Deans and Richard Tresch Fienberg July 16, 2006
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