215. Before there was @HiRISE, there was the Mars Orbiter Camera on Mars Global Surveyor—which spotted Opportunity & its tracks from orbit. http://pic.twitter.com/SvzfeLoVLh
— Tanya Harrison (@tanyaofmars) July 17, 2017
via Twitter https://twitter.com/tanyaofmars
July 18, 2017 at 04:56AM
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