A Boeing Delta 4 Heavy rocket, which may someday be used to send humans into space, rises from the launch pad during its first unmanned launch at Vandenberg Air Force Base, Calif., Thursday Jan. 20, ... more 
A Boeing Delta 4 Heavy rocket, which may someday be used to send humans into space, rises from the launch pad during its first unmanned launch at Vandenberg Air Force Base, Calif., Thursday Jan. 20, 2011. less 
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Associated Press | Photo By Phil Klein
Thu, Jan 20, 2011 8:20 PM EST