Ok so I might sound a bit ignorant, but please bare with me. I have 2 questions 1st I've always wondered how they know that dark matter isn't just a bunch of black holes. I mean couldn't there be a bunch of little black holes created right after the big bang. You have all these particle flying around with a high amount of energy, couldn't they form little black holes. thanks. 2nd Space really isn't empty, It constantly has photons and other particles traveling through it, could dark energy and dark matter just be all these particles. I know I'm wrong, but I'm looking for an explanation. They way I'm thinking about it is, if you view the universe from an infinite different points of view, you would still see all the stars and what not,and this is due to the photons giving off from these stars. P.s. I know you can't view the universe from an infinite point of views, because technically you could only view it in different planck distances which is finite.