MSGID: 1:317/3 634700ac   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
   October 12, 2022 - Tassili n'Ajjer   
      
      Tassili n   
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      In south-eastern Algeria, sitting at the borders of Libya, Niger, and   
      Mali, a vast and ancient plateau rises from the Sahara Desert. On   
      October 9, 2022, the Moderate Resolution Imaging Spectroradiometer   
      (MODIS) on board NASA’s Terra satellite acquired a true-color image of   
      this rugged region of rock and orange sand dunes, which is known as   
      Tassili n’Ajjer.   
      
      The name Tassili n’Ajjer translates to “plateau of chasms,” which   
      clearly describes the deep fissures and canyons long ago cut into the   
      rock by flowing water. The dune field, seen in this image as orange   
      roughly parallel lines, took shape after an ancient lake dried up. The   
      dark area is predominately formed of sandstone.   
      
      Tassili n’Ajjer is a UNESCO World Heritage Site with more than 15,000   
      prehistoric etchings and illustrations on the cave walls; these record   
      a human presence as far back as 6000 BCE.   
      
      Image Facts   
      Satellite:  Terra   
      Date Acquired: 10/9/2022   
      Resolutions:  1km (199.5 KB),  500m (597 KB),  250m (1.7 MB)   
      Bands Used:   
      Image Credit: MODIS Land Rapid Response Team, NASA GSFC   
      
      
      
   https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2022-10-12   
       
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