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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 | 
           James van Allen | 
          
          
           | Date | 
           January 1977 | 
          
          
           | Source | 
            http://www.nasa.gov/vision/universe/features/james_van_allen.html Click on "View Photo Gallery" and then go to the tenth image | 
          
          
           | Author | 
           NASA | 
          
          
           Permission ( Reusing this file) | 
           
            
             
              
               | 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:
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                 - The  SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.  
 
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          This image, which was originally uploaded with an assertion of  Public Domain status, was reviewed on 17 July 2009 by the  administrator or  trusted user  Rambo's  Revenge  (en.wiki), who confirmed the Public Domain status on that date. | 
         
        
        
        
        
       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
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