Sunspots On Sun
by NASA Goddard Space Flight Center Scientific Visualization Studio
Title
Sunspots On Sun
Artist
NASA Goddard Space Flight Center Scientific Visualization Studio
Medium
Photograph - Photograph
Description
Large sunspots on the sun. SOHO image, On 30 March 2001, the sunspot area within the group spanned an area more than 13 times the entire surface of the Earth. It was the source of numerous flares and coronal mass ejections, including the largest flare recorded in 25 years on 2 April 2001. Caused by intense magnetic fields emerging from the interior, a sunspot appears to be dark only when contrasted against the rest of the solar surface, because it is slightly cooler than the unmarked regions.
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May 30th, 2013
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