Sun Unleases X7 Class Flare
An x-class flare began at 3:48 AM EDT on August 9, 2011 and peaked at 4:05 AM. The flare burst from sun spot region AR11263, before it rotated out of view. The image here was captured by NASA's Solar Dynamics Observatory (SDO) in extreme ultraviolet light at 131 Angstroms.
This image is from the beginning of the event just before the satellite sensors were overwhelmed by energetic particles.
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