For the fiftieth anniversary of Sputnik, the behind-the-scenes story of the fierce battles on earth that launched the superpowers into space The spy planes were driving Nikita Khrushchev mad. Whenever America wanted to peer inside the Soviet Union, it launched a U-2, which flew too high to be shot down. But Sergei Korolev, Russia's chief rocket designer, had a riposte: an artificial satellite that would orbit the earth and cross American skies at...