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  News & Analysis
  

  Oct 11, 2017

  NASA's Mars Reconnaissance Orbiter finds origin of sand on the red planet

  The fact that we see active sand dunes on Mars today requires that sand particles must be resupplied to replace the grains that are lost over time.
  #Nasa #Mars #MRO #Mars Reconnaissance Orbiter #Sand Dunes #sand grains #Northern lowlands

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