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Last updated on April 23, 2014 at 20:10 EDT
Great Wall
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Great Wall

April 19, 2011
The Great Wall of China and Inner Mongolia are featured in this image photographed by Expedition 10 Commander Leroy Chiao on the International Space Station.

Despite myths to the contrary, the wall isn't visible from the moon, and is difficult or impossible to see from Earth orbit without the high-powered lenses used for this photo.