Mixed-up sunspot emits powerful solar flare

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The sunspot region known as AR3006 has an area of a reversed magnetic polarity near its center, a phenomenon that can result in increased solar flare activity. A mixed-up region of sunspots pointed almost directly at Earth has just emitted a major solar flare, which could cause havoc with power grids and communication networks over the next few days. NASA's Solar Dynamic Observatory (SDO) first ...

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