THE SOLAR WIND HAS ARRIVED: Earth is entering a stream of high-speed solar wind on March 15th, and this is causing auroras around the Arctic Circle so bright that some observers are seeing them even before nightfall. Visit Spaceweather.com for more information about this intensifying display and--bonus!--a must-see aurora movie.
Above: This image from the Lights over Lapland live webcam in Abisko, Sweden, shows auroras shining through the twilight on the evening of March 15th. For more sightings, visit Spaceweather.com's Realtime Aurora Gallery.
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