File:Concepts from 1975 NASA Summer Study at Stanford.png
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| Description |
English: Eight public domain concepts for the future design of centrifugal space stations, created at the 1975 NASA Summer Study at Stanford University. |
| Date | |
| Source | http://settlement.arc.nasa.gov/75SummerStudy/figure4.21.gif |
| Author | NASA / Stanford Summer Study |
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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 | |
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| current | 08:09, 25 October 2012 | | 1,728 × 1,296 (319 KB) | Wally moot (talk | contribs) | {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|Eight public domain concepts for the future design of centrifugal space stations, created at the 1975 NASA Summer Study at Stanford University.}} |Source = Derivative work of t... |
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