Roughly 68% of the universe is dark energy and around 27% is dark matter, both of which scientists are literally in the dark about. The other 5% is more familiar and includes all the atoms that comprise the things we see around us. Atoms are extremely spacious. The central part, called the nucleus, is only about one hundred thousandth of the size of an atom. As such, more than 99.99% of your body and everything around you is actually empty space. The exception would be the fundamental forces, whose fields are able to mediate that “empty” space.