As a novice to Quantum physics and as a working physicist in the oil industry this may be a stupid question but I find the whole subject of quantum physics fascinating. I have been pondering the missing mass in the universe and particle vs wave argument and came across a nice description using the analogy of a pond. If I throw a stone into a pond I get both a wave that propogates out from the point of impact as well as particle motion due to the motion of the molecules of water. So my question is. Is the missing mass in the Universe an entity that allows light and electromagnetic radiation to travel through space much like water behaves in a pond when a stone is thrown in thus light and electromagnetic radiation behave like a wave and a particle?