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Date: 2012-10-22 17:52:36Mars Exploration Rover Sundials Horology Gnomon Shadows Astronomy on Mars Spirit rover Opportunity rover Mars in the fiction of Leigh Brackett Spaceflight Spacecraft Space technology | VOLUME 2, ISSUE 2 | JUNE SOLSTICE[removed]MARS’ TWO MOONS Phobos & DeimosAdd to Reading ListSource URL: www.planetary.orgDownload Document from Source WebsiteFile Size: 1,52 MBShare Document on Facebook |