On April 12, 1961, in space vehicle Vostok I, Russian cosmonaut Yuri Gagarin became the first human being to orbit the earth. Thus began the manned space race between the United States and the Soviet Union. Perhaps its most dramatic moment came on July 20, 1969, when American astronaut Neil Armstrong became the first man to set foot on the moon. This handsome book captures the first exciting years of space exploration.