File:Gravel-covered martian surface.jpg
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![File:Gravel-covered martian surface.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Gravel-covered_martian_surface.jpg/800px-Gravel-covered_martian_surface.jpg?20120809185041)
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[编辑]描述Gravel-covered martian surface.jpg |
English: This full-resolution color image from NASA's Curiosity Rover shows the gravel-covered surface of Mars. It was taken by the Mars Descent Imager (MARDI) several minutes after Curiosity touched down on Mars.
The camera is about 30 inches (70 centimeters) from the surface as the rover sits on the ground. The image pixel scale is about 0.02 inches (0.5 millimeters), but the camera is slightly out of focus at this distance, so the actual ground scale is about 0.06 inches (1.5 millimeters). A sliver of sunlight passing through the structure of the rover illuminates the surface. The largest rock fragment in the image is about 2 inches (5 centimeters) long. Most are much smaller. A rover wheel is visible at the top left. This is the 1,008th image that MARDI took. The original image from MARDI has been geometrically corrected to look flat. Curiosity landed inside of a crater known as Gale Crater. |
日期 | |
来源 | http://photojournal.jpl.nasa.gov/catalog/PIA16018 |
作者 | NASA/JPL-Caltech/MSSS |
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[编辑]Public domainPublic domainfalsefalse |
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本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ![]() |
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当前 | 2012年8月9日 (四) 18:50 | ![]() | 2,108 × 1,533(194 KB) | Rehman(留言 | 贡献) |
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