STS087-704-53 Click the photo number to access all resolutions available and the database record.
| STS-087 Earth Sciences and Image Analysis Photographic Highlights |
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| STS087-704-53 |
STS087-704-53 Click the photo number to access all resolutions available and the database record. |
| Aorounga Impact Crater, Chad: Aorounga, a multi-ringed impact crater, has a diameter of 12.6 km and is less than 345 million years old. The partially eroded crater is located to the southeast of Emi Koussi on the Tibesti Massif in Chad. The impact nature of the crater was confimed in 1992 when a team of French investigators identified shocked minerals at the site. It has been proposed, although not confirmed, that Aorounga (south) is one of a chain of craters. Two craters to the northeast (Aorounga central and Aorounga north) were detected in radar images of the area taken by the Spaceborne Imaging Radar C/X-band Synthetic Aperature Radar (SIR-C/X- SAR) on the Space Shuttle Endeavour in April and October of 1994. The dark streaks overlaying the crater are valleys carved out by thousands of years of wind erosion. |
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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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