I have long theorized that the universe is NOT expanding. It is contracting.
Contracting into a giant black hole.
Think about it. Galaxies further "down" the black hole from us appear to be moving faster than us; Galaxies not as far from us "down" the hole appear to be moving faster because we are further "down" the hole, thus traveling faster away from them.
The "event horizon" for this huge black hole is what we call the "big bang." Only problem is: I don't have enough understanding of Einstein's mathematical equations of Gravitation to prove or disprove my conjecture.
If the Universe is spherical, or even ‘football-shaped’ as some conjecture, then we should be able to ‘see’ both sides of an object like a galaxy, in opposite directions!............