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Northern Lights above Clouds

By: Yuichi Takasaka

 

Region: Americas

Site: Northwest Territories - Canada

Date: September 2010

Dancing lights of aurora appear in the partly cloudy sky of Yellowknife, northern Canada. Aurora is produced by the collision of charged particles from Earth's magnetosphere, mostly electrons but also protons and heavier particles, with atoms and molecules of Earth's atmosphere (at altitudes above 80 km). The particles originate from the Sun and reach the Earth in the stream of solar wind. Yuichi Takasaka/Blue-moon.ca

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