JPL-Caltech/Cornell/Arizona State Univ/NASA
  • Postcards From Mars

    As of July 2012, NASA's Opportunity rover had survived 3,000 Martian days in the cold on Mars since landing there in 2004. NASA marked the occasion by assembling this false-color panorama from 817 images sent by the rover's panoramic camera.
    JPL-Caltech/Cornell/Arizona State Univ/NASA
  • Postcards From Mars

    This scene combines 817 images taken by the panoramic camera on NASA's Mars Exploration Rover Opportunity. In false color, it shows the terrain that surrounded the rover while it was parked to save power during the Martian winter from December 2011 to May 2012.
    JPL-Caltech/Cornell/Arizona State Univ./NAZA
  • Postcards From Mars: Rovers' Exploits

    Opportunity explored the walls of a crater called Victoria, where a long-ago impact had exposed layers of Martian bedrock. On one edge of Victoria was this cliff, nicknamed Cape Verde. For scale, NASA superimposed an image of the Opportunity rover, which is about the size of a golf cart.
    NASA/JPL-Caltech/Cornell University
  • Postcards From Mars: Rovers' Exploits

    Scientists say they have ideas about why Mars did not bloom with life, even though it used to be warm and moist like the Earth. They analyzed the soil and concluded any standing water would have been thick with dissolved minerals. This false-color image from the Opportunity rover shows bedrock in Victoria Crater.
    NASA/JPL-Caltech/Cornell University
  • Postcards From Mars: Rovers' Exploits

    The Mars Rover Spirit explored Gusev Crater, where it landed in 2004. It got stuck in some crusty soil in 2009, and sent its last radio signal in 2010. NASA, perhaps trying to keep expectations low, had initially said it expected the rover to last only 90 days.
    NASA/JPL-Caltech/Cornell University
  • Postcards From Mars: Rovers' Exploits

    Sunset on Mars, as seen by the Spirit rover. The Martian sky, salmon-hued at midday, turned blue as the sun went down.
    NASA/JPL-Caltech/Cornell University
  • Mars Rover

    The deck of the Spirit rover became so dusty that it almost blends into the Martian soil below, in this image assembled from frames taken by the rover's top-mounted panoramic camera. Thin Martian winds sometimes blew dust off the rovers' solar panels.
    NASA/JPL-Caltech/Cornell
  • Mars

    A microscopic imager on the Opportunity rover reveals mysterious shiny, spherical objects embedded in the Martian soil. The area shown is just over an inch across.
    NASA
  • Mars

    The Opportunity rover dragged one of its wheels back and forth across the sandy soil to dig a small trench -- one way to study the Martian dirt for clues to mineral composition and history.
    NASA
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