I was wondering...

Dark matter is uncounted for mass in the universe. We are pretty sure it's there because of gravitational lensing. That is, look at a distant galaxy and the light from stuff behind said galaxy gets bent around it by the gravitational mass of the galaxy and the amount estimated mass in the galaxy is insufficient to account for the stuff that we see. There should be more mass. We call this dark matter, not to be confused with dark energy, which I am not fond of as shown in my space theories. Now, I've read that even in the deep vacuum of space there is on average 1 atom per cubic centimeter. Add up all the space between stars in said galaxy and you've got a good bit of mass. Knowing scientist as I seem do and their propensity to overlook the obvious I wonder if all these little atoms in the vacuum of space could be the mysterious dark matter.
What? I've a drawing I want here. How I do that?