May 9, 2011 A Parade of Astronauts and Corvettes Edit Delete Tags Autopost A group of current and former NASA astronauts gathered in Cocoa Beach, Fla., on Saturday to commemorate the 50th anniversary of Alan Shepard’s suborbital flight. The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that included examples of the sports car’s six design iterations.