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                           Astronomy Picture of the Day   
      
       Discover the cosmos! Each day a different image or photograph of our   
         fascinating universe is featured, along with a brief explanation   
                       written by a professional astronomer.   
      
                                   2025 March 22   
      
                             SuperCam Target on Ma'az   
                   Image Credit: NASA/JPL-Caltech/LANL/CNES/CNRS   
      
      Explanation: What's the sound of one laser zapping? There's no need to   
      consult a Zen master to find out, just listen to the first acoustic   
      recording of laser shots on Mars. On Mars Rover Perseverance mission   
      sol 12 (March 2, 2021) the SuperCam instrument atop the rover's mast   
      zapped a rock dubbed Ma'az 30 times from a range of about 3.1 meters.   
      Its microphone recorded the soft staccato popping sounds of the rapid   
      series of SuperCam laser zaps. Shockwaves created in the thin Martian   
      atmosphere as bits of rock are vaporized by the laser shots make the   
      popping sounds, sounds that offer clues to the physical structure of   
      the target. This SuperCam close-up of the Ma'az target region is 6   
      centimeters (2.3 inches) across. Ma'az means Mars in the Navajo   
      language.   
      
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                       Tomorrow's picture: once upon a beach   
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