ideaMUX writes "NASA's solar dynamics observatory recently detected an M-class flare hurling a coronal mass ejection (CME) into space. The CME is not fully directed toward Earth, but some of the plasma cloud may be visible in the magnetosphere tonight, causing a geomagnetic disturbance and possible aurora. NASA said M-class flares are medium-sized, and can cause brief radio blackouts that affect Earth's Polar regions. Minor radiation storms sometimes follow M-class flares."
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