Nuclear Energy During the twentieth century scientists have discovered how to unleash the most powerful energy of all; Nuclear energy. The study of nuclear energy began for the same reasons that most scientific studies are begun; to understand more about the universe and the laws by which the universe works. The more knowledge we have about the universe, the more we can control the world in which we live. Nuclear energy is contained in the center, or nucleus of an atom. This energy is also known as atomic energy because its obtained from atoms, unfortunately this is not a good choice of words (because many other energies are obtained from atoms). An atomic bomb explosion s