| STS-102 Earth Sciences and Image Analysis Debriefing with Crewmembers April 24, 2001 |
| SYRIA, MOROCCO, MAURITANIA AND AUSTRALIA |
| Click here to view the complete online collection of astronaut photography of Earth >> |
| STS102-714-17 |
![]() STS102-714-17 Click the photo number to access all resolutions available and the database record. |
| Mauritania: More is known about what the Richat Structure is not rather than what it is. It is not an impact crater, it has no raised central peak and no presence of shock-altered minerals. The approximately 50 km diameter circular feature did not form from a volcanic eruption because there is no presence of igneous rocks. The Richat Structure is thought to have been caused by uplift and its appearance is due to erosion from wind and water. |
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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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