The search for water on Mars: Figure 50 Sodium, chlorine and boron analysis as seen by ChemCam. There are ten investigation points in this image, and for each of them the bar height indicates the amount of the three elements found. Image credit: NASA/JPL-Caltech/MSSS/LANL/CNES/IRAP/LPGNantes/CNRS/IAS.

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The search for water on Mars

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Figure 50 is divided into two parts. On the left hand side is a photograph of the surface of a martian rock outcrop. The rock is mainly brown, but there is a white area in the centre. This has a red oval drawn around it. On the right hand side of the image is a close-up photograph of the area within the red oval, approximately 7cm in length (left to right). This is a light brown rock, with a white area in the centre. Overlain on this are ten bar charts showing the relative amounts of sodium, chlorine and boron. The bar charts are overlain where the rock was analysed to show the distribution of elements across the white area. The details of the bar charts is not relevant.

Figure 50 Sodium, chlorine and boron analysis as seen by ChemCam. There are ten investigation points in this image, and for each of them the bar height indicates the amount of the three elements found. Image credit: NASA/JPL-Caltech/MSSS/LANL/CNES/IRAP/LPGNantes/CNRS/IAS.

4.9 Rolling on the ground again: MSL

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