The Week in Pictures: December 20 – December 27, 2014. Part 3/7

NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event sun emitting a significant solar flare, peaking at 19:28ET/00:28 on December 19, 2014, provided by NASA. This flare is classified as an X1.8-class flare. X-class denotes the most intense flares, while the number provides more information about its strength. An X2 is twice as intense as an X1, an X3 is three times. (Photo by Reuters/NASA)
The Week in Pictures: December 20 – December 27, 2014. Part 3/7
   
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