Answer and explanation:
Nuclear energy is formed through a process called nuclear fission, where the nucleus of an atom splits into two smaller nuclei, releasing a significant amount of energy. This process is commonly used in nuclear power plants to generate electricity.
Nuclear energy can also be found in celestial bodies, not just on Earth. The primary source of nuclear energy in the universe is the fusion of hydrogen nuclei into helium nuclei in the cores of stars, including our sun. This process, known as nuclear fusion, releases an immense amount of energy, providing the light and heat that sustains life on Earth.
Additionally, other celestial bodies, such as neutron stars and supernovae, are sites where nuclear reactions produce enormous amounts of energy. Supernovae, in particular, are powerful explosions marking the death throes of massive stars, and they release an immense amount of energy, including the synthesis of heavy elements through nuclear reactions.