Interplanetary Magnetic Fields Trigger Geomagnetic Storm

Source - Space Weather News for April 7, 2016: http://spaceweather.com

GEOMAGNETIC STORM: Earlier today, April 7th, Earth passed through a fold in the heliospheric current sheet, plunging our planet into a region of interplanetary space filled with negative polarity magnetic fields.  The result: a G1-class geomagnetic storm is in progress. High-latitude sky watchers should be alert for auroras after nightfall on April 7-8.

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