STS097-717-89 Click the photo number to access all resolutions available and the database record.
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| STS097-717-89 |
STS097-717-89 Click the photo number to access all resolutions available and the database record. |
| Sossus Vlei, Namibia: The long, parallel, deep red dunes at Sossus Vlei ("vlei" is Dutch for marsh), central Namibia, are constructed by the prevailing winds moving northward up the coast. Along the course of the ephemeral stream (white strands at center), the ground-water table is at or near the land surface, and the damp sand disrupts or prevents dune formation. Where winds are deflected around bedrock outliers, smaller and less continuous dunes result. Similar aeolian features can be seen in images of the floor of Hebes Chasma, Herschel impact basin, and the north polar region of Mars, taken with the Mars Orbital Camera. |
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This service is provided by the International Space Station program and the JSC Astromaterials Research & Exploration Science Directorate. Recommended Citation: Image Science and Analysis Laboratory, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." . |
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