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Linear Dunes, Namib Sand Sea
An astronaut aboard the International Space Station (ISS) used a long lens to document what crews have termed one of the most spectacular features of the planet: the dunes of the Namib Sand Sea.
from NASA Image of the Day http://ift.tt/2godViQ
via IFTTT
from NASA Image of the Day http://ift.tt/2godViQ
via IFTTT
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