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            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
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        Description: The prominent  Tycho  en:crater on the  en:Moon.
        Source:  en:Image:Mooncrater.jpg
Primary source:  http://cmex-www.arc.nasa.gov/CMEX/data/SiteCat/sitecat2/crater.htm
        
         
          
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           This file is in the  public domain because it was solely created by  NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See  Template:PD-USGov,  NASA copyright policy page or  JPL Image Use Policy.) | 
           
            
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       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
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