We often wonder in awe at the strange paradigms of space and time. The sheer size and distances alone are difficult to comprehend. But every object on earth is made of atoms. Within those atoms is another, even stranger set of rules and believe it or not, vast amounts of nothing!
Think of the atom's structure like that of our solar system. A massive central nucleus (the sun), orbited by much smaller electrons (planets). The nucleus has a positive electrical charge, the electrons a negative charge and the electrical attraction between the two holds the whole system together.
In scale though it becomes bizarre. Imagine the atomic nucleus (virtually the entire the mass of the atom) as a soccer ball-sized 2 kilogram weight. Electrons would be like bees flying around - several kilometres away! Everything in between is void. Atoms, which form all solid matter, are themselves almost entirely empty space.