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Red Planet Rovers: Follow the Progress of the Spirit and Opportunity As They Explore the Red Planet!
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December 30, 2004

A close-up view of the brushed surface of a rock dubbed "Wishstone." The circular area of interest, measuring approximately 5 centimeters (2 inches) in diameter, revealed darker pieces of material randomly distributed within a lighter-colored matrix. Spirit used its Microscopic Imager on sol 333 (Dec. 9, 2004) to take the four individual frames for this mosaic view.

Credit: NASA/JPL/Cornell/USGS | Last Image Update: December 30, 2004

Spirit Mission Journal

Rover: Spirit Date: December 17, 2004

While climbing "Husband Hill," Spirit stopped to examine a rock nicknamed "Wishstone" for several sols. A section of the rock was examined after a brushing by the rock abrasion tool and then again after a grinding. This image of Wishstone was taken by the Pancam camera on sol 337 (Dec. 14, 2004). The RAT depression measures about 4.5 centimeters (1.7 inches) across.

Rover: Spirit Date: December 13, 2004

This spectrum, taken by Spirit’s Mössbauer spectrometer, shows the presence of an iron-bearing mineral called goethite in a rock called "Clovis" in the "Columbia Hills" of Mars. Goethite contains water in the form of hydroxyl as a part of its structure. By identifying this mineral, the examination of Clovis produced strong evidence for past water activity in the area that Spirit is exploring.

Rover: Spirit Date: December 7, 2004

The yellow line in this Pancam image traces the path Spirit has taken since arriving at the "Columbia Hills." Labels show the informal names of rocks the rover has studied along the way. Spirit is currently headed east, traversing the flanks of the hills en route to an overlook above a steep valley that is out of view from this perspective.

Rover: Spirit Date: November 29, 2004

Soil on Mars can be a bit clumpy, as shown in this image of soil after it was compacted by one of Spirit’s wheels. Scientists think the light-colored material may be a global layer of airfall dust. Spirit’s microscopic imager took this picture, showing an area approximately 3 centimeters (1.2 inches) square, during the rover’s 314th sol (Nov. 19, 2004).

Rover: Spirit Date: November 4, 2004

Researchers used Spirit’s RAT to help them study a rock dubbed "Uchben" in the "Columbia Hills" of Mars. The tool ground into the rock, creating a shallow hole 4.5 centimeters (1.8 inches) in diameter in the central upper portion of this image. It also used wire bristles to brush a portion of the surface below and to the right of the hole. The rover’s Pancam panoramic camera captured this approximately true-color image.

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