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Mars Exploration rover | Photo Contest
This black-and-white image shows two dark tracks meandering diagonally from lower left to upper right and then bending back to the left again before they disappear.  The tracks are atop a shallow slope that dips downward from left to right. In the distance, near the top of the image, are more slopes, a broad, sandy plain, and a horizon that is flat on the right and bounded by low-lying hills on the left.
Spirit
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Wheel Tracks

Hundreds of millions of miles from Earth, a pair of wheel tracks chronicles the rover's journey across a rocky, sandy, rippled slope above a broad Martian plain.
PIA07113
Click on the 16 images below to see larger view
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