File:Pioneer plaque hydrogen.svg

Original file ‎(SVG file, nominally 702 × 330 pixels, file size: 5 KB)

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Summary

DescriptionPioneer plaque hydrogen.svg	English: Hyperfine transition of neutral hydrogen.
Date	25 February 1972
Source	Extracted from the Pioneer plaque.svg.
Author	Original: NASA Vector: Mysid
SVG genesis InfoField	The SVG code is valid. This symbol was created with Inkscape.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	19:42, 21 May 2009		702 × 330 (5 KB)	wikimediacommons>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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