Space shuttle Atlantis mission specialist Sandra Magnus answers a question during a news conference Thursday, June 30, 2011, at Johnson Space Center, in Houston. The launch of Atlantis, the final ... more 
Space shuttle Atlantis mission specialist Sandra Magnus answers a question during a news conference Thursday, June 30, 2011, at Johnson Space Center, in Houston. The launch of Atlantis, the final space shuttle mission, is scheduled for July 8. (AP Photo/David J. Phillip) less 
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Associated Press | Photo By David J. Phillip
Thu, Jun 30, 2011 3:52 PM EDT