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  • Schematic of laser-induced breakdown spectroscopy

    › Schematic of Laser-Induced Breakdown Spectroscopy

  • Artist's impression Mars' Gale Crater

    › Cross Section of Gale Crater, Mars

  • Gale Crater

    › Oblique View of Gale Crater, Mars, with Vertical Exaggeration

  • Sample Analysis at Mars (SAM) instrument

    › SAM Instrument at NASA Goddard Space Flight Center

  • A section of the Mars Science Laboratory's Gale Crater landing site is shown, with a representative path from the landing location toward the layered mound to the south.

    › Studying a Wider Swath

  • Color coding in this image of Gale Crater on Mars represents differences in elevation, with blue relatively low and tan relatively high.

    › Topography of Gale Crater

  • This view of channels on Mars came from NASA's Mariner 9 orbiter.

    › Mariner 9 View of Nirgal Vallis

  • Opportunity location maps, Sol 2781

    › Opportunity's Traverse Map, Sol 2781

  • Sulfates are found overlying clay minerals in sediments within Columbus Crater, a depression that likely hosted a lake in the past.

    › Sulfates and Clays in Columbus Crater, Mars

  • Thick stacks of clay minerals indicate chemical alteration of thick stacks of rock by interaction with liquid water on ancient Mars.

    › Chemical Alteration by Water, Mawrth Vallis

  • On ancient Mars, water carved channels and transported sediments to form fans and deltas within lake basins.

    › Chemical Alteration by Water, Jezero Crater Delta

  • Recent small craters discovered by the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter expose buried ice in the middle latitudes of Mars.

    › Fresh Crater Revealing Buried Ice

  • This schematic shows that ice builds up near the equator at high obliquities (top right) and the poles grow larger at very low obliquities (bottom)

    › Changes in Tilt of Mars' Axis

  • Color coding in this image of Mars represents differences in elevation, measured by the Mars Orbiter Laser Altimeter on NASA's Mars Global Surveyor.

    › Topography of Mars

  • NASA's Mars Exploration Rover Opportunity studied layers in the Burns Cliff slope of Endurance Crater in 2004.

    › Layers in Burns Cliff Examined by Opportunity

  • Rhtymic patterns of sedimentary layering in Danielson Crater on Mars result from periodic changes in climate related to changes in tilt of the planet.

    › Rhythmic Layering in Danielson Crater on Mars

  • Color coding in this image of Gale Crater on Mars represents differences in elevation.

    › Topography of Gale Crater

  • A rippled dune front in Herschel Crater on Mars

    › Rippling Dune Front in Herschel Crater on Mars

  • A rippled dune front in Herschel Crater on Mars

    › Rippling Dune Front in Herschel Crater on Mars

  • A rippled patch of sand in Becquerel Crater on Mars

    › Blowing in the Martian Wind

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