Final-Answer:
Nuclear fission and nuclear fusion are both nuclear reactions that release energy. However, they are very different processes.
Nuclear fission is the process of splitting a large atomic nucleus into two smaller nuclei. This process releases a large amount of energy. Nuclear fission is the process that powers nuclear reactors.
Nuclear fusion is the process of combining two small atomic nuclei into a larger nucleus. This process also releases a large amount of energy. However, nuclear fusion is much more difficult to achieve than nuclear fission. This is because the nuclei of atoms are positively charged, and like charges repel each other. In order to fuse two nuclei, they must be brought very close together, which requires a lot of energy.
Nuclear fusion is the process that powers the sun and other stars. It is also the process that is being pursued for use in fusion reactors. Fusion reactors have the potential to be much more efficient than nuclear fission reactors, and they do not produce any long-lived radioactive waste. However, fusion reactors are still in the development stage, and it is not clear when they will be commercially available.
Nuclear fission and nuclear fusion are both important processes in the universe. They are both sources of energy, and they both play a role in the evolution of stars.
