The type of energy released during nuclear fission is known as nuclear energy. This process involves the splitting of heavy atomic nuclei, such as uranium-235 or plutonium-239, into smaller nuclei, resulting in the release of a significant amount of energy, primarily in the form of kinetic energy of the fission fragments and radiation. Nuclear fission is harnessed in nuclear power plants to generate electricity and in nuclear weapons. The enormous energy produced demonstrates the potential and challenges associated with nuclear energy utilization.