Matter/Anti-matter et al

You may be slightly confused.

Why not start here: Milky Way - Wikipedia, the free encyclopedia and get the basics.

You wrote, "I HAVE BEEN THINKING ABOUT THIS SINCE 1962..."

Given the success (or lack thereof) you have had over the last 50 years I strongly urge you to change your tactics.

If you are really interested, start with books on the universe and start with something elementary so that you do not miss anything important and build from there. You should be able to accomplish more in 1 year of diligent reading than you have in the last 50 thinking.

Starting with simple books will lay down a solid foundation from which you can build on.

The other recourse is your local community college. See if there are some entry level astronomy courses you can enroll in depending on your current level of math and physics. You should have a solid understanding of algebra and basic physics first.

Lastly, at 67 years young you should be able to do whatever you want to do (including going back to school)! ;-)

The Milky Way galaxy, like other galaxies, is thought to orbit a massive Black Hole at it's center, it is not expanding as far as I know, but the Universe is...The event horizon is localized to the black hole itself some 25,000 light years from Earth....Nobody knows what happens inside a black hole...

You wrote, "it is not expanding as far as I know"

Yes, it is. As space expands, so does everything within it. So, the distances between stars expand within the Milky Way, the Milky Way must also grow larger.

I don't see how that could be possible...If we( the solar system) are rotating around a massive black hole then we are in it's accretion disk, as we all know there is no escape from a black hole, certainly not when you take into account all the mass in this galaxy, and the absence of any opposing mass within shouting distance...

Simple. We are not part of the accretion disk.

In fact, our Milky Way's black hole at the center (Sagittarius A* and its companion star S2) does not appear to have an accretion disk.

There needs to be enough material in the neighboring region to form one. If not, the material just gets sucked in faster than it can form a disk.

The radius of the accretion disk can be anywhere from about 5 Schwarzschild radii or larger by an order of magnitude or more. It depends on the size of the black hole and the amount of material neighboring the black hole.

Also, the event horizon and an accretion disk are not the same thing. The accretion disk will form outside the event horizon.

AH, it certainly is possible that my info is outdated, would you be so kind as to post your reference source that sites the material facts you posted...I would appreciate that...

Here is some basic information on Sgr A*:

Wikipedia

Here is a more detailed look at Sgr A*'s accretion disk. Paper 1 and Paper 2

Sgr A* may have what is known as an advection disk where the matter does not radiate much (if any) energy. Sgr A* rotational axis is oriented along the Milky Way's north pole, so we do not see a jet from Sgr A*.

Here is another paper for accretion disk size.

Obviously, the size of the disk depends on a lot of factors, including the mass of the black hole and the availability of material around the black hole and its radiation pressure.

i wish you had asked me in 1962. It is a Black Hole of course...

http://www.youtube.com/watch?v=P5_Msrdg3Hk

Ring this chap:

http://en.wikipedia.org/wiki/Brian_Cox_(physicist)

Good questions. ALL particle physicist and astronomy researchers would give an eyeteeth for some answers and gain a Nobel Prize right next year for the answer. So be good cheer, you are in good company.

On an odd chance, let me add the inflation of the Universe, dark matter, dark energy. Any partial explanation = instant Nobel Prize.

Or, simply invoke black magic, and be done with!