- Original Caption Released with Image:
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Mars Exploration Rover team members at NASA's Jet Propulsion Laboratory,
Pasadena, Calif., prepare an experiment on July 13, 2009, for assessing
how a test rover moves when embedded in loose soil and commanded to drive
backward with wheels turned. Brenda Franklin (top) observes as Julie
Townsend (kneeling) places position markers for facilitating measurements
after the test run.
This work was part of a series of tests at JPL designed to determine the
best way to get NASA's Spirit rover out of a Martian patch of soft soil
called "Troy," where Spirit's wheels have dug in.
To see updates on the efforts to free the Spirit rover, visit the JPL
Free Spirit website.
- Image Credit:
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NASA/JPL-Caltech
Image Addition Date:
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2009-07-13
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