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          This is a  featured picture, which means that  members of the community have  identified it as one of the finest images on the English Wikipedia, adding significantly to its accompanying article. If you have a different image of similar quality, be sure to  upload it using the proper  free license tag,  add it to a relevant article, and  nominate it. | 
         
        
        
        
        
        
       
        Summary 
        
         
          
           | Description | 
           The star cluster  Pismis 24 lies in the core of the large  emission nebula  NGC 6357 that extends one degree on the sky in the direction of the  Scorpius constellation. Part of the nebula is  ionised by the youngest (bluest) heavy stars in Pismis 24. The intense  ultraviolet radiation from the blazing stars heats the gas surrounding the cluster and creates a bubble in NGC 6357. The presence of these surrounding gas clouds makes probing into the region even harder. | 
          
          
           | Date | 
           19 December 2006 | 
          
          
           | Source | 
            http://www.spacetelescope.org/images/html/heic0619a.html ( TIFF image 36 MB) | 
          
          
           | Author | 
           NASA, ESA and Jesœs Maz Apellÿniz (Instituto de astrofsica de Andaluca, Spain). Acknowledgement: Davide De Martin (ESA/Hubble) | 
          
          
           Permission ( Reusing this file) | 
           
            
             
              | Public domainPublic domainfalsefalse | 
              
             
            
             
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              This file is in the  public domain because it was created by  NASA and  ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.  The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre.  Copyright statement at hubblesite.org or  2008 copyright statement at spacetelescope.org. For material created by the  European Space Agency on the spacetelescope.org site since 2009, use the {{ ESA-Hubble}} tag. | 
              
               
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                 This is a featured picture on Wikimedia Commons ( Featured pictures) and is  considered one of the finest images. 
                  
   This is a featured picture on the English language Wikipedia ( Featured pictures) and is  considered one of the finest images. 
                   
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