Aurora, 極光

ESA/Getty
An Aurora
In this handout photo provided by the European Space Agency (ESA).German ESA astronaut Alexander Gerst took this image of an aurora as he circled Earth whilst aboard the International Space Station (ISS). Gerst returned to earth on Monday after spending six months on the International Space Station completing an extensive scientific programme, known as the ‘Blue Dot’ mission (after astronomer Carl Sagan’s description of Earth, as seen on a photograph taken by the Voyager probe from six billion kilometres away).
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World | FT Photo Diary  http://blogs.ft.com/photo-diary/category/world/page/2/

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