Bok
12-08-2016, 11:13 PM
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.
More... (http://www.nasa.gov/image-feature/linear-dunes-namib-sand-sea)
More... (http://www.nasa.gov/image-feature/linear-dunes-namib-sand-sea)