You’ve heard of the space race, but do you know the whole story? The most ambitious race humankind has ever undertaken was masterminded in the shadows by two engineers on opposite sides of the Cold War—Wernher von Braun, a former Nazi officer living in the US, and Sergei Korolev, a Russian rocket designer once jailed for crimes against his country—and your textbooks probably never told you. Von Braun became an American hero, recognized the world over, while Korolev toiled in obscurity. These two brilliant rocketeers never met, but together they shaped the science of spaceflight and redefined modern warfare. From Stalin’s brutal Gulag prisons and Hitler’s concentration camps to Cape Canaveral and beyond, their simultaneous quests pushed science—and human ingenuity—to the breaking point. From Amy Cherrix comes the extraordinary hidden story of the space race and the bitter rivalry that launched humankind to the moon.