On October 4, 1957, the day Leave It to Beaver premiered on American television, the Soviet Union launched the space age. Sputnik, all of 184 pounds with only a radio transmitter inside its highly polished shell, became the first artificial satellite in space; while it immediately shocked the world, its long-term impact was even greater, for it profoundly changed the shape of the twentieth century. Paul Dickson chronicles the dramatic events and developments leading up to and resulting from Sputnik's launch. Supported by groundbreaking, original research and many declassified documents, Sputnik offers a fascinating profile of the early American and Soviet space programs and a strikingly revised picture of the politics and personalities behind the facade of America's fledgling efforts to get into space. By shedding new light on a pivotal era, Dickson expands our knowledge of the world we now inhabit and reminds us that the story of Sputnik goes far beyond technology and the beginning of the space age, and that its implications are still being felt today.