Nuclear engineering is a discipline concerned with the research, development, and application of nuclear energy and processes. It is a multidisciplinary field that applies principles from physics and chemistry to the design, development, and operation of systems and facilities utilizing nuclear reactions. This encompasses areas such as nuclear power generation, nuclear medicine, radiation protection, the management of nuclear materials and waste, and the development of advanced reactor designs, focusing on the safe and controlled use of nuclear technology for diverse applications including energy, defense, and space exploration.