(02/24/2002) -- After opening ceremonies for the 40th anniversary celebration of American spaceflight, space pioneer John Glenn Jr., who made that historic flight orbiting the Earth, signs a commemorative painting. The site is the Rocket Garden in the KSC Visitor Complex. Other Mercury astronauts who attended the celebration were Scott Carpenter, Gordon Cooper and Wally Schirra. The event was capped with a dinner held at the KSC Apollo/Saturn V Center