File:Pioneer_plaque_hydrogen.svg
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![File:Pioneer plaque hydrogen.svg](http://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Pioneer_plaque_hydrogen.svg/702px-Pioneer_plaque_hydrogen.svg.png)
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Summary
DescriptionPioneer plaque hydrogen.svg |
English: Hyperfine transition of neutral hydrogen. |
Date | |
Source | Extracted from the Pioneer plaque.svg. |
Author |
Vector: |
SVG development InfoField |
Licensing
Public domainPublic domainfalsefalse |
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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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25 February 1972
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:12, 21 May 2009 | ![]() | 702 × 330 (5 KB) | Mysid | == Summary == {{Information |Description={{en|1=Hyperfine transition of neutral hydrogen extracted from the Pioneer plaque (File:Pioneer plaque.svg).}} |Source=Extracted from the Pioneer plaque (File:Pioneer plaque.svg). |Author=NASA; vectors by |
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