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  Solar Dynamic Observatory - Large Coronal Hole Facing Earth

Solar Dynamic Observatory - Large Coronal Hole Facing Earth
Image credit: NASA/SDO/AIA

Uploader comment: A big, dark hole (dark blue, center) in the sun's atmosphere, called a “coronal hole”, is turning toward Earth and spewing solar wind. Coronal holes are places where the sun's magnetic field opens up and allows the solar wind to escape.

   

 
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Waspie_Dwarf
June 5, 2012, 11:31 pm
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