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Hungry for Rocks
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Hungry for Rocks

December 19, 2004
This image taken by the panoramic camera onboard the Mars Exploration Rover Spirit shows "Sashimi" and "Sushi" - two rocks that scientists considered investigating first. Ultimately, these rocks were not chosen because their rough and dusty surfaces are ill-suited for grinding. Dusty surfaces also can obscure observations of a rock's top coating. Data from the panoramic camera's red, blue and green filters were combined to create this approximate true color picture.