Regions:  

 

All green

By: Dennis Mammana

 

Region: Polar Regions

Site: Alaska - USA

Date: 2005

Taking a photograph of the northern lights is easy. Taking a good photo is difficult. Each winter, Dennis Mammana travels to the frozen north of Alaska to capture the lights with his camera. 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. Dennis Mammana/Dennismammana.com.

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