Aurora/ Polar light /northern lights 極光

MARCH 17: The aurora borealis, or northern lights, fill the sky above the Holy Assumption of the Virgin Mary Russian Orthodox church in Kenai, Alaska. (M. Scott Moon/Associated Press)
Pictures of the Week: 03.17 – 03.23 2013 | CLIK/HEAR | Multimedia, photography, video showcase of The Palm Beach Post http://clikhear.palmbeachpost.com/2013/potw/pictures-of-the-week-03-17-03-23-2013/

Pasi Hakala

Jimmy Westlake
Aurora plus comet: Double delight in the skies above - PhotoBlog http://photoblog.nbcnews.com/_news/2013/03/18/17359455-aurora-plus-comet-double-delight-in-the-skies-above?lite

Ximonic (Simo Räsänen)
Aurora (astronomy) - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Aurora_(astronomy)
極光 - 維基百科，自由的百科全書
極光（Aurora或Polar light或Northern light）出現於星球的高磁緯地區上空，是一種絢麗多彩的發光現象。
http://zh.wikipedia.org/wiki/%E6%9E%81%E5%85%89
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