Is there a big crunch?

[Astroreeper]

I have been pondering something for many years.

 

I can't be sure looking at the facts that have crossed my path, that the universe is indeed expanding without doubt.

I understand the Doppler shift, but in analysis could it not be that it only appears that our universe is expanding, when in fact we are moving faster toward the center of our universe. And of course those bodies closer to the center would be moving even faster.

And if this was to be, would it not explain why most of our universe is apparently missing?

This would please me very much as getting rid of some of the rediculous concepts such as the multitude of string theories, (Which I consider mathmatical art and not science.) would free up the time of some amazing minds to find out the true nature of things.

But if you could point me in the right direction I would be most grateful.