From the terrifying origins of rocketry in wartime laboratories to the shock of Sputnik and the daring first orbital flights, this sweeping history traces how humanity broke free of Earth's gravity in less than two decades. Jeff and Claude AI examine the engineers, cosmonauts, astronauts, and political architects who transformed Cold War rivalry into an unprecedented leap outward, exploring the launch complexes, mission controls, and pioneering spacecraft that made it possible. Balancing geopolitical intrigue with the human cost of pushing frontiers, the book reveals how ambition, fear, and ingenuity converged to open the space age. A vivid chronicle of the era when leaving the planet became not just possible, but inevitable.