Solar Flares

September 19, 2022

During the week of Friday, August 12, to Thursday, August 18, 2022, the Sun was particularly busy. Several bright active regions were present, and starting on the 15th, they were responsible for 11 M-class flares. M-class flares are one level below X-class, the highest-energy designation. This imagery is all captured by the Solar Dynamics Observatory in the 171-angstrom wavelength of extreme-ultraviolet light. This wavelength is particularly good at showing loop structures in the Sun's corona, or atmosphere. Credit: NASA Goddard

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