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The Night Shining Clouds

By: Pekka Parviainen

 

Region: Europe

Country: Finland

Date: August 2007

The Noctilucent or night-shining clouds (NLCs) in a clear summer night sky of Finland. NLCs lie near the edge of space, reflecting sunlight from about 80 kilometers above Earth's surface. They are usually spotted above the Polar Regions in summer. Pekka Perviainen/Polarimage.fi.

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