Apollo astronaut Gerald Carr joins Vance Brand left and six other Apollo astronauts.

At the Apollo/Saturn V Center at NASA's Kennedy Space Center in Florida, Apollo astronaut Gerald Carr (right) joins Vance Brand (left) and six other Apollo astronauts for NASA's 40th Anniversary of Apollo Celebration of the July 1969 launch and landing on the moon. Carr served as CAPCOM for the Apollo 8 and 12 flights, and was involved in the development and testing of the lunar roving vehicle which was used on the lunar surface by Apollo flight crews. He also was commander of Skylab 4 launched in 1973 on the third and final manned visit to the Skylab Orbital Workshop. It was the longest manned flight (84 days, 1 hour, 15minutes) in history at that date. Photo credit: NASA/Kim Shiflett