Here’s a good explanation (w/ animation) of why there is no center of the universe’s expansion. That everywhere can be considered the center —this link is for real :)
http://www.youtube.com/watch?v=i1UC6HpxY28
I went to the you tube link... then watched about 4 of the suggested videos on same topic. I’m just saying... this is nothing more than time I’ll never get back. That’s the only true information about black holes, or factualy information about time space continuium.