Introduction: One of my goals in life is simply this: Understand; life, universe, religion, science, love, hate all things that encompass our existence. All these things we let rule our lives and things we can't or refuse to acknowledge exist affect us whether we want to believe it or not. Problem is a lot if not almost everything that we are supposed to be involved in, what I believe we should already know and be able to manipulate we barely or don't understand at all.
I don't know if this great man quoted someone else, but neil degrasse tyson is a bad ass astrophysicist who helped compile a very interesting book called death by black hole. A bunch of essays that place the universe and it's THEORETICAL mechanisms in an easier to understand light. For the non-astrophysicist interested in knowing what may or may not be going on. The beginning of this book (death by black hole) has an introduction that many people I've talked too who have read this book have a difficult time getting past. The reason being that the introduction to the book tries to make the reader understand that he/she is not capable or does not truly understand what is going on. Though at some points in may get a little belligerent it does hold ground as people, including many who would say otherwise, do not understand what's going on in the universe, in their lives, in their mind.
I'm not going to sit here and tell you that. As I already have abridged what someone else said and hopefully got the point across that there is a need to understand things. Things could be much easier, people might be able to get along, windows might open up to us that have only been dreamed of previously. This isn't anything that will work out the understandings of everything but somethings that have come up recently; dark matter, the big bang, the big rip, the dark center......And something that might seem not related to this whole universe subject matter, but you may very well be surprised. Or not care.
My deal with dark matter and the ever expanding universe; Dark matter first and foremost is not matter by definition. It has no defined weight, it doesn't reflect or absorb light. In fact for the most part dark matter doesn't even really exist. Something is expected to just be there, though. Something dark and something heavy. Some people say there has to be something dark there because space is so dark. People like that see too often with just their eyes in my opinion.
The possibility is there, I mean for space to be "full" of dark matter. That could be the reason space is black. You know there is also the possibility that everything is just so big and so far apart that protons (light) cannot fill up such a titanic area.
My idea on the existence of dark matter has to do with another theory already still attempting to be proved; The Big Bang.
The Big Bang is the supposed beginning of the Universe. Don't get the Universe confused with a galaxy or our solar system. The universe is every observable thing to exist in space and time as we know it now. A galaxy is a dense gigantic grouping of stars, solar systems, interplanetary dust and gas....If you're beyond the third grade I will not bother explaining the solar system.
The Big Bang refers to a time when all known matter in the universe was apparently compressed into a space smaller than an atom...that suddenly exploded psychotically into being. This, the big bang is basically an explosion right? On epic proportions but it's still an explosion. If you've been in on or around an explosion then you know of the pressure released. No matter how big or small the blast there is a release of pressure that coincides with the time frame of the explosion. Happening milliseconds after the start of the explosion it is fully released once the explosion ends.
Here's what I have to say about these two things: Dark matter, which affects all matter in the universe is not matter and not dark and exerts no true gravity on any matter. Take into account that compared to the rest of the universe we are specs of fragile nothing. Cosmic bodies (I use this term to refer to most things in space such as stars, nebulae, planets, galaxies and the universe itself) have lifespans that stretch from AT LEAST a few million years to several billion years. Not out of novelty, but because everything is so big it takes what would be several of our lifetimes to accomplish things such as creation and even death itself. Except in the most violent of cases, such as supernovae, quasars, gamma bursts from stars or galaxies (events such as that can produce energy that in some cases can be viewed across the universe, but the release is so violent that it only takes a few hours to a few days to achieve. What's up with that, I really don't know?).
A star and a galaxy are nowhere near the size of the universe, but size is what I am getting at. Size and time.
Consider a star explodes itself either into or out of existence within a few days...Perhaps the universe would be working on an obviously bigger and possibly longer timescale. The big bang might not have ever finished, because the universe and all known matter is a rather big field I would imagine we are still within the throes of the explosion itself.
According to scientists the stuff known as dark matter pulls and pushes on everything with it's own (the dark matter) gravity field. This in turn causing everything to move, spin, throws itself around faster than we expect it go or should go.
The accumulating pressure releasing itself from still within this billions year old explosion is what I think this dark matter may be. All that energy being forced outward, in magnitudes I could not explain because I have no idea how to understand it, forcing planetary orbits to wobble, galaxies to spin quicker, rogue stars to fly past us with light-year long tales of million degree gas. The great expansion and rip soon to come (well not in relative terms, several million or billion years to go) are the everlasting effects of this big bang. The expansion of all matter away from the galactic center it originated from is happening every second, putting light-years of distance between everything, eventually forcing it outward and away then ultimately into oblivion.
The big rip is the theoretical end, I say not to the universe but to the big bang itself if it does indeed happen. Many astrophysicists believe it will not be limited to solid matter but will have an effect on everything down to the tiniest nuclei. Very literally tearing every single atom apart from each other till nothing exists and reality is very seriously undone. Well maybe not reality but it makes you think doesn't it?
In summary, I think dark matter is the result of the big bang still continuing. Not really matter or dark but the noticeable effects of all the escaping pressure from the explosion itself forcing everything outward and apart.