![Spirit's 'Wishstone'](https://www.nasa.gov/wp-content/uploads/2023/03/105372main_image_feature_248_ajhfull.jpg)
Spirit’s ‘Wishstone’
The Spirit rover had to dig a little deeper to find out more about this martian rock, dubbed "Wishstone." Spirit used its rock abrasion tool, or "RAT," first to scour a patch of the rock's surface with a wire brush, then to grind away the surface to reveal interior material.
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https://www.nasa.gov/image-detail/spirits-wishstone/
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