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> Utah and Mars Similarities > Example 1
Photo by: Marjorie A. Chan, University of UtahVivid sandstone coloration and numerous iron-oxide concretion "marbles" (foreground) averaging 2-4 cm in diameter, Jurassic Navajo Sandstone of southwestern Utah.DOWNLOAD COMPLETE IMAGE
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Image courtesy of NASA/JPL/CornellNASA Mars exploration rover Opportunity's image of hematite "blueberries" (<0.5 cm diameter) from Meridiani Planum, Mars.DOWNLOAD COMPLETE IMAGE
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