On 4 October 1957 a shiny steel sphere the size of a beach ball hurtled through the sky, emitting signals picked up by radio operators around the world. Taking the United States completely by surprise, the Soviet Union had successfully launched the world’s first earth satellite, opening a new chapter in the space race that was met with both awe and fear. A month later Nikita Khrushchev promised that, by freeing the economy from the dead hand of Stalinism, he would create such abundance that even the United States would be left in the dust. The claims now seem extravagant, but at the time the spectre of a rising Soviet Union seemed real enough. In the mid-1970s American visitors walking through the major cities of Siberia were taken aback by downtowns that were made to appear every bit as modern as their counterparts back home.