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Apollo 15 Command Module Pilot Alfred M. Worden practices alone in a mission simulator at the Kennedy Space Center in preparation for his upcoming launch to the Moon with Mission Commander David R. Scott and Lunar Module Pilot James B. Irwin. Worden will maintain the command module in lunar orbit while the other two crewmen remain on the surface for as long as 67 hours. Launch to the moon is scheduled for no earlier than July 26, 1971.
