Mixed emotions as space shuttle program draws to close

Wednesday, July 20, 2011 | 11:52 a.m. CDT; updated 4:38 p.m. CDT, Wednesday, July 20, 2011

CAPE CANAVERAL, Fla. — On the eve of NASA's historic, wheel-stopping end to the shuttle program, the four astronauts making the final journey and the flight controllers who will guide them home said Wednesday they're starting to feel a rush of emotions.

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