Can matter and dark matter occupy the same space?

Prevailing models of dark matter assume that it consists of non-interacting/very weakly interacting elementary particles. For such dark matter, the answer is absolutely yes. If a creature made of this kind of dark matter walked by you, he'd be les... read more

In the event dark matter is actually something along the lines of prana, cosmic energy, etc., or perhaps composite dark matter at a different quantum phase, it could occupy the same space. It largely depends on the model and simulations you are looking at. read more

But even without dark matter you can find situations where known particles do "occupy the same space": for example electrons in an atom are all wave packets located in the same area around the nucleus, electron orbitals share the same physical location. read more

Antimatter and matter can occupy the same space, as they do in a meson. Antimatter is not the same thing as dark matter. There is extremely little antimatter in the universe. What amounts there are are generated in high-energy environments such as supernovas or cosmic rays and are quickly annihilated away. There is no permanent antimatter in existence. read more