It is odd, though, that the edge of the universe seems to be the same distance in every direction from here. That might imply the center is not there at that spot, but where we are.
An explosion in a vacuum would radiate out in a circle from the equatorial center of the mass. Particles would be scattered outward and gasses would tend to remain in the center.
This object is so far away that no telescope can pinpoint what is beyond the other side of the center. This will be one of the things that only theory can explain as we will never really be able to provide real evidence.
i.e. It is effectively just a lot of hot air and little tangible substance.