Thursday, July 19th 2012, 4:42 AM EDT
ALMOST X-FLARE : Sunspot complex AR1520-1521 erupted again on July 19th, this time producing an M7-class solar flare that almost crossed the threshold into X-territory...
..Although the explosion occured on the other side of the sun's western limb, our planet could feel some effects. The blast site is magnetically connected to Earth by backward-spiralling lines of magnetic force. Protons accelerated by the flare are being guided to us by those lines of magnetism, and a mild radiation storm is underway.
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