Post-Normal Science (PNS) emerged as a critical response to the limitations of traditional scientific approaches under conditions of complexity and conflict. Drawing on the intellectual history of risk assessment, statistical governance, and ecological economics, this article reconstructs the conceptual evolution of PNS as a framework for navigating high-stakes decisions under uncertainty. We argue that PNS offers not only a critique of technocratic rationality but also a model for pluralistic and participatory science. By emphasizing the role of extended peer communities, value diversity, and inclusive approaches to quality, PNS reimagines the role of science in fostering more accountable and socially responsive forms of knowledge and governance.