Contact: Susan Hendrix
NASA/Goddard Space Flight Center
Caption: The sun emitted a significant solar flare -- its fourth X-class flare since Oct. 23, 2013 -- peaking at 5:54 p.m. on Oct. 29, 2013. NASA's Solar Dynamics Observatory captured the flare in this image, which shows light in wavelengths of both 304 and193 Angstroms.
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Related news release: Sun emits fourth X-class flare in a week