A simple fact challenges the current theory of light propagation through a medium, leading us to conclude that an atom consists of not only electrons and a nucleus but something else as well, which plays important roles in the atomic structure, including giving an atom its volume. This emphasizes the need for more studies designed to probe the structure of the atom. The book also provides evidence that "space" itself is not empty but filled with a form of matter, highlighting the failure of the Michelson-Morley experiment. The new explanation for the release of nuclear energy leads to a more accurate explanation for the "ripples in space" that the LIGO and Virgo scientific collaboration recently announced as "gravitational waves."