For more than a century before 1957, scientists and adventurers dreamed about the exploration of space and designed rockets and vehicles to make it possible, but the real space age began on October 4, 1957, when the Soviet Union launched the Sputnik satellite. Until then, America's space exploration had been entrusted to the military, but immediately following Sputnik, the United States began to plan for the first civilian space agency. NASA (National...