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[S 7067] Mars rover. Mars Pathfinder mosaic image of the robotic Sojourner rover vehicle on the surface of Mars by the large rock called 'Yogi'. Sojourner used its Alpha-Proton X-Ray Spectrometer (APXS) to study the composition of 'Yogi'. Pathfinder's ramp is at lower centre. Sojourner's circular tracks are from its soil mechanics experiments. The rover weighs 9 kilogrammes and is powered by a solar panel. An operator on Earth decides Sojourner's destination, but the rover itself chooses the best way to get there. This image is part of a 360 degree panorama taken by the Imager for Mars Pathfinder (IMP) on the 8th, 9th and10th Martian days spent on Mars since it landed on 4 July 1997. (KEYSTONE/SCIENCE PHOTO LIBRARY/NASA) === === [Stockbild-Archiv]