A scientific visualization from NASA Goddard’s Scientific Visualization Studio, who have this to say about it:
An X-class solar flare erupted on the left side of the sun on the evening of Feb. 24, 2014. This composite image shows the sun in ultraviolet light with wavelength of both 131 and 171 Angstroms.
“X-class” means as powerful as solar flares get. This pot has come to a rolling boil.
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