NASA Photo ID: STS41C-02-054       File Name: 10061461.jpg
  Film Type: 35mm                    Date Taken: 04/15/84
  Title: Astronauts van Hoften and Nelson conduct pre-breathing exercise
  Description:
  Astronauts James D. van Hoften and George D. Nelson, wearing Shuttle launch 
  and entry helmets, conduct a pre-breathing exercise on the forward flight 
  deck of the shuttle Challenger during the STS 41-C mission.                   
  
  Subject terms:
  ASTRONAUTS                              
  CHALLENGER (ORBITER)                    
  CREWS                                   
  FLIGHT DECK                             
  HELMETS                                 
  ONBOARD ACTIVITIES                      
  SPACE SHUTTLE MISSION 41-C              
  

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