If the universe is always expanding, that means that there are places that the universe hasn’t reached yet. What is there before the universe gets there.

Question

I just can’t fathom what’s on the other side of the universe, and would love if you guys could help!

In: Physics

Answer 1

When we say the universe is expanding what we mean is that space itself is expanding. And space itself is not expanding into more space but rather there is just more and more space in among all the other space. So the new places that the univers expands into is evenly distributed thorughout the universe and is brand new. The places that the universe expands into did not exist before. If you were to measure the distance between two far away galaxies very accuratly an then repeat the measurement some time later you will find that there are now more space between the galaxies even if they have not moved in relation to each other. There are just more space, more places that have popped into existance between the galaxies.