President John F. Kennedy astonished the world on the 25th of May 1961, when he announced to Congress that the United States would land a man on the Moon by 1970. No group was more surprised than the engineers at NASA. On the day of the historic speech, America had a total of fifteen minutes of spaceflight experience – with just five of those minutes outside the atmosphere. In fact, Soviet canines had more spaceflight experience than US astronauts. To fulfill President Kennedy’s mandate, NASA engineers had to invent space travel. In ‘One Giant Leap’, Charles Fishman reveals the untold true story of the men and women charged with taking the United States to the Moon.