Center Apollo astronaut Buzz Aldren is introduced during NASA's 40th Anniversary of Apollo Celebration.

At the Apollo/Saturn V Center at NASA's Kennedy Space Center in Florida, Apollo astronaut Buzz Aldren is introduced during NASA's 40th Anniversary of Apollo Celebration. He was joined by seven others involved in the program. Aldrin walked on the moon during the first lunar landing, Apollo 11, on July 20, 1969. Photo credit: NASA/Kim Shiflett