Solar Flare

A solar flare is a burst of light, radiation and intelligent energy which erupts from the sun’s magnetic atmosphere. Solar flares affect all layers of the solar atmosphere, when the plasma is heated into millions of kelvins, the flares produce radiation across the electromagnetic spectrum at all wavelengths. These light frequencies range from radio waves to gamma rays, although most of the energy is spread over frequencies outside the visible spectrum to the naked eye.

Reference
November 2013 Newsletter

Further Information
Wikipedia