An engineering model for NASA's Mars Science Laboratory makes its way up a hill in the Mars Yard testing area at NASA's Jet Propulsion Laboratory. The model, called "Scarecrow" because it does not include a computer brain, is used for tests of mobility and landing.
The Mars Science Laboratory rover is in development for launch in 2009. JPL, a division of the California Institute of Technology, Pasadena, manages the mission for the NASA Science Mission Directorate, Washington.
Image Credit: NASA/JPL-Caltech
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