Sun Emits Fourth X-class Flare in a Week (IMAGE)

NASA/Goddard Space Flight Center

Sun Emits Fourth X-class Flare in a Week

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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NASA/SDO

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