The strongest solar flare of 2013 erupted Monday from the sun. This image of the flare, shown in the upper left corner, was captured by NASA's Solar Dynamics Observator.

"This marks the 3rd X-class flare in 24 hours," officials with NASA's sun-watching Solar Dynamics Observatory wrote in a statement. "Just like the two before this one also happened over the eastern limb of the sun and is not Earth-directed."

http://usnews.nbcnews.com/_news/2013/05/14/18253152-hyperactive-sun-fire...

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