The landing of a man on the Moon is considered within the framework of the four-phase scheme for developing technical innovations. The article focuses on making a political decision by the US President Kennedy. The influence of NASA, political advisers, academic community and successes of the Soviet Union on making the decision is discussed. The price of national prestige, scientific benefit, the risk to the crew and budget expenditures were thoroughly weighted. The scientific community warned that scientific results should be more substantial, but this criticism was neglected. It is demonstrated how the first factor – national prestige – won. The role of scientific advisers in the mechanism of presidential decision-making is shown.