Personally I'm far more interested in exactly what is contained inside of dark matter. Dark Matter is a substance that occupies 90% of our universe, but we can't even see the form of it with our inferior human eyes and crappy technology!
I'm going to sound like a fruit loop here but I'll just say it anyway. My secret theory is that our universe is actually the inside of an atom, just one tiny part of god knows what else. Doesn't it sound like it would make sense? An atom is almost entirely vacant space, with only tiny pieces of matter such as the nucleus floating around inside of it.
Have any of you guys seen "What the BLEEP"? Super powered microscopes are now capable of taking photographs of the nucleus of an atom- and proving that it is in multiple places at the same time.
I can't really even get my mind around that. Apparently matter is only a "possibility".