In a critical Cold War moment, Dwight D. Eisenhower's presidency suddenly changed when the Soviet Union launched Sputnik, the world's first satellite. What Ike called "a small ball" became a source of Russian pride and propaganda, and it wounded him politically, as critics charged that he responded sluggishly to the challenge of space exploration. Yet Eisenhower refused to panic after Sputnik--and he did more than just stay calm. He helped to guide...