First X-Class Solar Flare of 2013
The picture above is a blend of two images from NASA’s Solar Dynamics Observatory, showing a significant solar flare which peaked at 10pm EDT on May 12th, 2013. One image shows light in the 171-angstrom wavelength, the other in 131 angstroms. The flare classified as an X1.7, making it the first X-class flare of this year, and was also associated with a coronal mass ejection (CME).
Image credit: NASA/SDO/AIA (High-res)