Shuttle mission specialist Sandra Magnus, left, and commander Christopher Ferguson train in a shuttle flight simulator at Johnson Space Center Friday, June 17, 2011, in Houston as they prepare for the... more 
Shuttle mission specialist Sandra Magnus, left, and commander Christopher Ferguson train in a shuttle flight simulator at Johnson Space Center Friday, June 17, 2011, in Houston as they prepare for the final shuttle flight early next month. (AP Photo/Pat Sullivan) less 
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Associated Press | Photo By Pat Sullivan
Fri, Jun 17, 2011 4:59 PM EDT