File:93786main 4.jpg
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| Description |
English: Noctilucent clouds : Because of their high altitude, near the edge of space, noctilucent clouds shine at night when the Sun's rays hit them from below while the lower atmosphere is bathed in darkness. They typically form in the cold, summer polar mesosphere and are made of water ice crystals. |
| Date | |
| Source | http://www.nasa.gov/centers/goddard/news/topstory/2003/0522shuttleshine.html |
| Author | Naval Research Laboratory, Washington, D.C. and NASA from STUDY FINDS SPACE SHUTTLE EXHAUST CREATES NIGHT-SHINING CLOUDS, Uploaded by Piotr Flatau |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:25, 31 March 2006 | | 718 × 541 (54 KB) | Pflatau (talk | contribs) | STUDY FINDS SPACE SHUTTLE EXHAUST CREATES NIGHT-SHINING CLOUDS http://www.nasa.gov/centers/goddard/news/topstory/2003/0522shuttleshine.html Because of their high altitude, near the edge of space, noctilucent clouds shine at night when the Sun's rays hit |
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