[Zero Signal]

The center of the Universe does not exist in three dimensional space.

For years I have always thought of the universe as a hypersphere; a four dimensional sphere (there are more dimensions but let us keep this simple). The center of the universe would not in any way be accessible to us in the three dimensions that we are confined in.

A visual point to make is representing the universe as a balloon with dots drawn on it. As it expands, every dot appears to be moving away from each other, from their own frame of reference. Thus, any point in the universe in our three dimensions would appear to be the center of everything, because in our frame of reference everything is moving away from us.

This brings up another issue. As on the surface of the Earth, if you travel in a straight line long enough you will eventually come back to where you started. Interestingly, this becomes apparently equally applicable to the universe. It would take much, much longer, however, given the expansion of the universe since it is adding to the distance you would need to travel all of the time.

In short, if you want to find the center of the universe, and indeed the origin of the Big Bang, then look around you; it is everywhere.