ocr: - ENI ROUTE FOR MARS Mariner 9 (cont.) The photos obtained by Mariner 9 were spectacular. They: showed remarkable surface features such as large crevasses and several extinct volcanoes, including Olympus Mons whose base measures 550 kilometers across. Photos were also taken of the Red Planet's two small satellites, Phobos and Deimos. The misshapen Phobos looks a little like a potato, always Mariner 9 with the same face turned to. Mars. Deimos is more spherical in shape. The probe operated for 349 days in Mars orbit. Its cameras were activated 14,004 times, collecting a total of 7329 photos-in ...
