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Aurora watching, time-exposure image Chris Madeley:

Aurora watching, time-exposure image

2008
» Description

Aurora watching. Time-exposure image of an aurora watcher by a fire, observing an auroral display in the northern hemisphere. The aurora borealis (northern lights) is an atmospheric phenomenon that appears as shimmering bands of coloured light in the sky at high latitudes. It occurs when the particles of the solar wind are directed towards the Earth's magnetic poles and collide with atoms in the upper atmosphere, emitting light. Photographed in Alaska. (KEYSTONE/SCIENCE PHOTO LIBRARY/CHRIS MADELEY/SCIENCE PHOTO LIBRARY)

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