This left image of a stereo image pair, taken on Sol 72 (September 15) from NASA's Sojourner rover's front cameras, shows areas of the Pathfinder landing site never before seen. The large rock on the right is 'Chimp.' Sol 1 began on July 4, 1997.

This left image of a stereo image pair, taken on Sol 72 (September 15) from the Sojourner rover's front cameras, shows areas of the Pathfinder landing site never before seen. The large rock on the right is "Chimp."

This image and PIA01577 (right eye) make up a stereo pair.

Mars Pathfinder is the second in NASA's Discovery program of low-cost spacecraft with highly focused science goals. The Jet Propulsion Laboratory, Pasadena, CA, developed and manages the Mars Pathfinder mission for NASA's Office of Space Science, Washington, D.C. JPL is an operating division of the California Institute of Technology (Caltech).

Photojournal note: Sojourner spent 83 days of a planned seven-day mission exploring the Martian terrain, acquiring images, and taking chemical, atmospheric and other measurements. The final data transmission received from Pathfinder was at 10:23 UTC on September 27, 1997. Although mission managers tried to restore full communications during the following five months, the successful mission was terminated on March 10, 1998.

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