A severe solar storm smacked Earth with a surprisingly big geomagnetic jolt Tuesday, potentially affecting power grids and GPS tracking while pushing the colorful northern lights farther south, federal forecasters said.
So far no damage has been reported. Two blasts of magnetic plasma left the sun on Sunday, combined and arrived on Earth about 15 hours earlier and much stronger than expected, said Thomas Berger, director of the Space Weather Prediction Center in Boulder, Colorado.
Read More: http://sacramento.cbslocal.com/2015/03/18/major-solar-storm-hits-earth-pulls-aurora-south/
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