U.S. astronauts laugh while standing around models of the Atlas and nose capsule designed to carry them into space in San Diego, California September 25, 1959. From left are Walter Schirra, J.R. Dempsey, executive of convair, maker of Atlas, John H. Glenn, Jr., Virgil I. Grissom, Alan Shepard, Leroy G. Cooper Jr. and Malcolm S. Carpenter. (AP Photo)