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The images above comprise a stereo pair taken from the Sojourner rovers' front cameras on the morning of Sol 42. Visible in the foreground is the rock nicknamed "Flat Top." Based on previous images from the Pathfinder lander camera, Flat Top appeared to have a layered texture (in the opinion of some scientists). These close-up images show that this is probably not the case. The texture visible on the side of the rock is made up of elongated pits, which may be either vesicles from volcanic outgassing or etches caused by weathering. The boundary between the edge and top of the rock exhibits topography, some of which correlates to the flute-like texture on the top surface. These depressions may have been carved by the wind, but more study of Flat Top is needed before this can be confirmed.

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Left and right images of the Sojourner rover perched atop Wedge rock during Sol 47. Sojourner has safely traversed off of Wedge and is now the vicinity of Shark rock where it will perform additional APXS measurements. In these images the vantage point of the IMP camera provides a view looking into the throat of the APXS. The APXS is the round object in the center of the front surface of the rover.

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Left and right images of Sojourner traversing near Half Dome.

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The Sojourner rover's Alpha Proton X-ray Spectrometer (APXS) is shown deployed against the rock "Moe" on the afternoon of Sol 64 (September 7). The rocks to the left of Moe are "Shark" (left of Sojourner) and "Half Dome" (behind Sojourner). They were previously measured by the APXS.

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This stereo image pair shows the Sojourner rover in the middle of the afternoon on Sol 66 (September 9). The rover has backed away from the rock "Moe" (to the right of the rover) after measuring its composition with the Alpha Proton X-Ray spectrometer. The next target for Sojourner, the rock "Stimpy," is in front of Moe.

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This stereo image pair shows the Sojourner rover's Alpha Proton X-ray Spectrometer (APXS) deployed against the rock "Stimpy" on the afternoon of Sol 68 (September 11). The two rocks behind the rover were previously analyzed by the APXS.

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This stereo image pair taken on the afternoon of Sol 71 (September 14) shows Sojourner leaving the "Rock Garden," an assemblage of large rocks behind and to the right of the rover. Sojourner's last target was the rock "Stimpy," seen at the far right.

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This stereo image pair of the rock "Half Dome" was taken by the Sojourner rover's front cameras on Sol 71 (September 14). Pits, linear textures, and pronounced topography on the rock are clearly visible.

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This stereo image close-up of the rock "Moe" was taken from the Sojourner rover's front cameras on 70 (September 13). Flute-like textures on the rock, possibly caused by wind abrasion, are clearly visible.

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The rock "Stimpy" is seen in this stereo close-up image pair taken by the Sojourner rover's front cameras on Sol 70 (September 13). Detailed texture on the rock, such as pits and flutes, are clearly visible.

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This stereo pair image mosaic shows the Sojourner rover near the large rock "Chimp" on the afternoon of Sol 72 (September 15). Prior to the acquisition of these images, Sojourner successfully traversed the terrain between Chimp and the "Rock Garden," an assemblage of large rocks to the right of this mosaic.

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This stereo image pair of the rock "Chimp" was taken by the Sojourner rover's front cameras on Sol 72 (September 15). Fine-scale texture on Chimp and other rocks is clearly visible. Wind tails, oriented from lower right to upper left, are seen next to small pebbles in the foreground. These were most likely produced by wind action.

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This 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."

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