Walter Marty Schirra, Jr. (March 12, 1923 – May 3, 2007) was one of the original Mercury 7 astronauts chosen for the Project Mercury, America’s first effort to put men in space. He was the only man to fly in all of America’s first three space programs (Mercury, Gemini and Apollo).
He logged a total of 295 hours and 15 minutes in space.
