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This blink comparison aids evaluation of a drive by NASA's Mars Exploration Rover Spirit during the rover's 2,092nd Martian day, or sol (Nov. 21, 2009).
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Free Spirit: Third Extrication Drive Ends With Wheel Stall
11.23.09 --Spirit experienced a wheel stall with the right-rear wheel during the second step of a two-step drive on Sol 2092 (Saturday, Nov. 21).
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Movement from Spirit's Third Extrication Drive
Movement from Spirit's Second Extrication Drive
This blink comparison documents very slight forward movement of NASA's Mars Exploration Rover Spirit during a drive on the rover's 2,090th Martian day, or sol (Nov. 19, 2009).
Adjusted Local Topography Map of Spirit's Surroundings
A depression called "Scamander Crater," about 8 meters (26 feet) wide and 25 centimeters (10 inches) deep, dominates the terrain near NASA's Mars Exploration Rover Spirit in this map that emphasizes ...
Mission News
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Third Extrication Drive Ends With Wheel Stall
Spirit experienced a wheel stall with the right-rear wheel during the second step of a two-step drive on Sol 2092 (Saturday, Nov. 21).
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Free Spirit: Second Extrication Drive Yields Slight Progress
After spinning the wheels for the equivalent of 2.5 meters (8.2 feet) in the forward direction, the center of the rover moved approximately 12 millimeters (0.5 inch) forward, 7 millimeters (0.3 inch) to the left and about 4 millimeters (0.2 inch) down.
Mission Features
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Mars Rovers Earn Congressional Kudos
03.11.09 - Congress passed a resolution Wednesday recognizing scientific contributions of NASA's Mars Exploration Rovers, and commending the JPL and Cornell University teams.
Video Gallery
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Free Spirit: Plotting an Escape
NASA's long-running Mars rover Spirit will begin critical drives for escaping a sand trap.
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Free Spirit - A Second Rover Rolls in Test Area
JPL engineers are using a second, lighter rover to test maneuvers to free Spirit.
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Free Spirit: Measuring Progress
Engineers continue crab-driving a test rover at JPL in an effort to plan how to dislodge Spirit from loose sand on Mars.
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Free Spirit: Exploring Options
JPL engineers are trying out maneuvers with a test rover on Earth, to plan an escape on Mars for Spirit.
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Free Spirit - Into the Sandbox
Rover Project Manager John Callas explains how getting a test rover stuck in a sandbox on Earth may help get Spirit out of a predicament on Mars.
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 "Plan for Getting Mars Rover Moving")
 "testing rover")
 "Spirit: Measuring Progress")
 "Free Spirit: Exploring Options")
 "Rover testing at NASA's Jet Propulsion Laboratory")
Multimedia Gallery
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Still Roving on Mars
After five years, the Mars Exploration Rovers are still studying Mars. Take a closer look at how they work.