Like photographers assembling a portfolio of best shots, astronomers have assembled a new, improved portrait of mankind's deepest-ever view of the universe. Called the eXtreme Deep Field, or XDF, the photo was assembled by combining 10 years of NASA Hubble Space Telescope photographs taken of a patch of sky at the center of the original Hubble Ultra Deep Field. The XDF is a small fraction of the angular diameter of the full Moon.
The XDF contains about 5,500 galaxies even within its smaller field of view. The faintest galaxies are one ten-billionth the brightness of what the human eye can see.
No one knows the answers for sure, of course, but I think we can take a pretty good guess.
If God created the universe in order for us to inhabit it, and if he chose to bring it into being the way cosmologists believe it came into being - in a huge explosion ex nihilo(the Big Bang) - then it has to be as old as it is and as big as it is for us to be here. Here's why:
Following the initial explosion the universe would have been nothing but energy. As it cooled the energy formed hydrogen which gradually coalesced into stars which produced heavier elements in their cores in the process of nuclear fusion. Eventually these stars exploded and spewed these heavy elements into space. These elements were later captured around stars like the sun and coagulated into spheres (planets).
This whole process by which the universe got to the point where the elements necessary for life could form and where life could be supported took billions of years all during which the universe was rapidly expanding. Thus, given that God may have chosen to create the universe in this way, the universe has to be as old as it is and therefore as big as it is.
It could well be the case that all of it, in its incomprehensible immensity, exists simply so that we can. If so, then the universe really would be anthropocentric. We really would be the point, or center, of the whole thing.