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Sunspots Erupt Suddenly

Mar 27, 2008
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http://www.space.com/scienceastronomy...

Three groups of sunspots emerged this week. This image was taking by the orbiting SOHO spacecraft. The groups of spots are all growing and capable of producing flares. However, their magnetic polarity pegs them to the last solar cycle, not this one. Credit: SOHO/MDI