Big Sunspot Crackles with Flares

Source - Space Weather News for Sept. 29, 2015: http://spaceweather.com

HIGH SOLAR ACTIVITY: Big sunspot AR2422 is crackling with M-class solar flares and it has an unstable magnetic field that harbors energy for even stronger eruptions. NOAA forecasters estimate a 25% chance of powerful X-class solar flares during the next 24 hours. 

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