Crepuscular rays

Crepuscular rays, in atmospheric optics are rays of sunlight that appear to radiate from a single point in the sky. These rays, which stream through gaps in clouds or between other objects, are columns of sunlit air separated by darker cloud-shadowed regions. The name comes from their frequent occurrences during crepuscular hours (those being dawn and dusk), when the contrasts between light and dark are the most obvious.

 

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~ http://bigstorvandre.blogspot.com/

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Taken on November 22, 2008