The week in pictures: 18 May 2012 - Telegraph http://www.telegraph.co.uk/news/picturegalleries/theweekinpictures/9275976/The-week-in-pictures-18-May-2012.html?frame=2220730
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The Aurora borealis, or Northern Lights.北極光
The Aurora borealis, or Northern Lights.北極光
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The week in pictures: 18 May 2012 - Telegraph http://www.telegraph.co.uk/news/picturegalleries/theweekinpictures/9275976/The-week-in-pictures-18-May-2012.html?frame=2220730
