Opportunity Examines Cracks and Coatings on Mars Rocks

            This false-color panoramic image, taken on martian day, or sol, 561 (Aug. 22, 2005) by NASA's Opportunity rover, shows the nature of the outcrop rocks that the rover is encountering on its southward journey across the martian plains to "Erebus Crater." The rocks, similar in make-up to those encountered earlier in the mission, display a clear pattern of cracks as well as rind-like features (identifiable as a light shade of blue to olive in the image) coating the outcrop surface. Prominent in the image are two holes (one on the rock, one on the rind) drilled with the rover's rock abrasion tool to facilitate chemical analysis of the underlying material. The reddish color around the holes is from iron-rich dust produced during the grinding operation. The rind, nicknamed "Lemon Rind," and the underlying rock, nicknamed "Strawberry," have turned out to be similar in overall chemistry and texture. This false-color composite was generated from a combination of 750-, 530-, and 430-nanometer filter images taken by the Opportunity panoramic camera, an instrument that has acquired more than 36,000 color filter images to date of martian terrain at Meridiani Planum.
   

Taken on: August 1, 2005

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Rocks

2005

Mars « less

Sets appears in: • ASU 2005-10

Stats: 503 views

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