Wikimore

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 Category:Vectorizations
SVG development InfoField	The SVG code is valid. This symbol was created with Inkscape. Category:Valid SVG created with Inkscape:Symbols#Pioneer%20plaque%20hydrogen.svg

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