Severe Sun Flares Predicted to Reach EarthSleeping for 11 years, our hot giant star the sun has begun to awaken. SavePrintNASA image of a solar flare erupting from giant sunspot 649. HO/Getty ImagesLina Berezovska6/10/2010|Updated: 10/1/2015We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.