http://www.spaceweather.com

A strong geomagnetic storm that spawned a vivid display of Northern Lights on Oct. 21st and 22nd is subsiding - but another storm could begin soon. A pair of solar explosions on Oct. 22nd hurled coronal mass ejections toward Earth. The expanding clouds will likely sweep past our planet on Oct. 24th or 25th and trigger a new round of geomagnetic activity. Visit spaceweather.com for details and to view pictures from a growing gallery of this week's sky show.