The strong force is one of the fundamental forces in the universe, responsible for holding together the nucleus of an atom. Synonyms for this powerful force include the strong nuclear force, nuclear strong force, and strong interaction. In physics, it is also referred to as the color force, due to its interactions with quarks that have different color charges. The strong force is immensely important in the field of nuclear physics, playing a vital role in nuclear fusion in stars and nuclear fission in power plants. It is a force that cannot be seen or felt, but its effects are ubiquitous in the world around us, making it one of the most important phenomena in the universe.