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January 2, 2012 05:29 pm PST

Iberian Peninsula aglow

Above is the Iberian Peninsula as photographed from the International Space Station. Light pollution looks pretty from space. From National Geographic: This photograph from space also shows airglow, a faint green arc seen along the horizon that's caused by chemical reactions among the gas molecules of Earth's upper atmosphere. "Iberian Night"


Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/0pGoG-sbk50/iberian-peninsula-aglow.html

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