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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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        Summary 
        
         
          
           | Description | 
           
             English: A photo with scale demonstrates the size of the avalanche which took place on Mars Feb 19, 2008 
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           | Date | 
           27 May 2008 | 
          
          
           | Source | 
            http://www.discoverychannel.ca/flipbook/flip.aspx?fid=7421 | 
          
          
           | Author | 
           NASA | 
          
         
         
         Licensing 
        
         
          
           | Public domainPublic domainfalsefalse | 
          
         
         
          
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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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           Warnings:
             - Use of  NASA logos, insignia and emblems are restricted per US law  14 CFR 1221.
 
             - The NASA website hosts a large number of images from the  Soviet/ Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
 
             - Materials based on  Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the  STScI.  See also {{ PD-Hubble}} and {{ Cc-Hubble}}.
 
             - The  SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.  
 
             - Images featured on the  Astronomy Picture of the Day (APOD) web site may be copyrighted.  
 
             
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        Original upload history 
        This file was originally uploaded at en.wikipedia as  Mars Avalanche with Scale.jpg, before it was transfered to Commons.
        
         
          | Upload date | 
          User | 
          Bytes | 
          Dimensions | 
          Comment | 
         
         
          | 2008-05-27 16:39:14 | 
           Sepeople | 
          211085 | 
          635×358 | 
          {{Information |Description= A photo with scale demonstrates the size of the avalanche which took place on Mars Feb 19, 2008 |Source= http://www.discoverychannel.ca/flipbook/flip.aspx?fid=7421 |Date=May 27, 2008 |Author= NASA }} | 
         
        
        
        
        
       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
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