Recovery of Astronaut Alan Shepard, 1961

1960s 1961 20th century aerospace alan bartlett shepard alan shepard america astronaut capsule event famous freedom 7 mercury freedom 7 helicopter history male man manned spaceflight marine may 5 may 5th mercury program mercury redstone 3 mr 3 nasa pacific ocean person personality recovery science shepard space exploration space program spacecraft spaceflight technology untied states usa usmc