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Mariner 9 View of Nirgal Vallis
Posted on Friday, November 25, 2011
Uploaded by
Waspie_Dwarf
Image credit: NASA/JPL-Caltech
Uploader comment: This view of channels on Mars came from NASA's Mariner 9 orbiter. In 1971, Mariner 9 became the first spacecraft to enter orbit around Mars.
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