What is this? Something in outer space? A galaxy perhaps? Nope. This is an atom. The atom can be referred to in two parts: the nucleus or the electron cloud. The nucleus of a hydrogen atom, when compared to the atom itself, is like a pin compared to a football stadium. The electron cloud, is home to the electrons. Atoms are primarily, 'empty space'.
This schlieren image of a T-38C aircraft was captured using the patent-pending BOSCO technique and then processed with NASA-developed code to reveal shock wave structures. Researchers at Armstrong and NASA’s Ames Research Center at Moffett Field, California, have developed new schlieren techniques based on modern image processing methods.