L'avenir de l'homme
A philosophical and scientific essay on the foundations and stakes of space conquest. Cuny builds a three-level argument: the probability of life elsewhere in the cosmos (cosmobiology, the Miller experiment), the astronomical targets of space exploration (Moon, Mars, Venus, nearby stars), and humanity's vital need to expand beyond Earth in the face of growing overpopulation. Strongly influenced by Teilhard de Chardin's cosmic philosophy, the book frames the conquest of the stars as the ultimate "insurance of immortality" for the human species.