Source - Space Weather News for May 3, 2010: http://spaceweather.com
GEOMAGNETIC STORM: A high-speed solar wind stream hit Earth's magnetic field last night (May 2-3), sparking a geomagnetic storm that lasted more than 15 hours. In Scandinavia, the Northern Lights were so bright they could be seen through the glow of the midnight sun. Red auroras spilled across the Canadian border and were spotted in several US states. Details and images are features in today's edition of http://spaceweather.com.
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