ROUGH CUT (NO REPORTER NARRATION)<br/> <br />NASA's Solar Dynamics Observatory captured a X-class solar flare erupting on the sun on December 19, 2014.<br/> <br />According to NASA, solar flares are powerful bursts of radiation. Humans are safe from the harmful effects of the radiation which is incapable of passing through Earth's atmosphere.<br/> <br />However, if strong enough, the radiation can disturb the atmosphere in the layer where GPS and communications signals travel.<br/> <br />According to NASA, an X-class flare is the most intense category of flares.
