More space news and info at: [ Ссылка ] - image captured by NASA's Solar Dynamics Observatory on February 24, 2014.
X-class flares are the most intense flares, with the number after the "X" designation denoting its relative strength. An X2 flare is twice the strength of an X1, an X3 is 3 times the strength, etc. The flare recorded in this image is classified as X4.9.
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Credit: NASA
![](https://s2.save4k.ru/pic/UsOs4_8Xt_4/maxresdefault.jpg)