47 In the field of science, technology and economics we have the discovery of nuclear energy, and its application first to the purposes of war and later, increasingly, to peaceful ends; the practically limitless possibilities of chemistry in the production of synthetic materials; the growth of automation in industry and public services; the modernization of agriculture; the easing of communications, especially by radio and television; Faster transportation and the initial conquest of interplanetary space.
Source: Mater et Magistra (Vatican.va)