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May 30, 2011
Prime and backup crew members for STS-1 take part in a briefing with engineers located in another building at NASA's Johnson Space Center (JSC) and with Rockwell International representatives in California via telephone. Astronauts John W. Young, left, and Robert L. Crippen, second from left, are STS-1 prime crewmen. Backup crewmen are astronauts Joe H. Engle, second from right, and Richard H. Truly.

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