The Seattle Times

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Tuesday, January 24, 2012

Strongest solar storm since 2005 may stir auroras, mess with GPS

This image from the NOAA/National Weather Service's Space Weather Prediction Center shows the coronal mass ejection (CME) erupting from the sun late Monday. The flare is reportedly the largest since 2005 and is expected to affect GPS systems and other communications when it reaches the Earth's magnetic field in the morning of Jan. 24.