Last night, a coronal mass ejection (CME) struck Earth's magnetic
field, sparking a moderately strong geomagnetic storm. Auroras were
sighted in the USA as far south as Nebraska with lights so bright in
some places that onlookers successfully photographed them using cell
phones. Full story and photos @ Spaceweather.com.
Above: Auroras over Cape Cod, Massachusetts, just after local midnight on Oct. 12th. Photo credit: Chris Cook
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