This week we celebrate the 50th anniversary of the first test flight of the Apollo spacecraft in October of 1968 -- Apollo 7 -- with the last surviving crew member, Walt Cunningham. After the tragic fire that took the lives of Apollo 1 astronauts Gus Grissom, Ed White and Roger Chaffee in January 1967, NASA had to completely redesign the Apollo spacecraft. Just over a year and a half later, the crew of Cunningham, Commander Wally Schirra and Donn Eisele took the spacecraft into earth orbit for