Engineers work on the Orion spacecraft at the Lockheed Martin facility in Denver on Friday, Aug. 12, 2011. Vibration testing on the spacecraft is expected to get underway on Saturday. (AP Photo/Ed ... more 
Engineers work on the Orion spacecraft at the Lockheed Martin facility in Denver on Friday, Aug. 12, 2011. Vibration testing on the spacecraft is expected to get underway on Saturday. (AP Photo/Ed Andrieski) less 
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Associated Press | Photo By Ed Andrieski
Fri, Aug 12, 2011 8:13 PM EDT