Sunspot blasts strong flares that are seen in multiple wavelengths by spacecraft

Sunspot AR4114 erupted with M8 and M6-class solar flares. NASA's Solar Dynamics Observatory captured the fireworks in ...
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Two earth-facing sunspots blasting powerful X and M flares

Sunspots AR3664 and AR3663 have been erupting with X- and M-class solar flares. Both sunspots are Earth-facing and could potentially deliver a solar storm. NASA's Solar Dynamics Observatory captured ...