Ca_and_Mg_tail_of_Mercury_(PIA12366).jpg

Summary

Description	English: Mercury's calcium and magnesium tail during the MESSENGER's third flyby on September 29, 2009
Date	29 September 2009
Source	http://photojournal.jpl.nasa.gov/catalog/PIA12366
Author	NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

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