File:Pioneer plaque hydrogen.svg

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Summary

Description
English: Hyperfine transition of neutral hydrogen extracted from the Pioneer plaque (File:Pioneer plaque.svg).
Date
Source Extracted from the Pioneer plaque (File:Pioneer plaque.svg).
Author NASA; vectors by Mysid

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Public domain
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/TimeThumbnailDimensionsUserComment
current14:12, 21 May 2009Thumbnail for version as of 14:12, 21 May 2009702 × 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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