Conceptual error
You are imagining that there exists some infinite space into which the Universe is expanding (or that the Universe is infinite and it and all of space is expanding). Your question about "seeing beyond the EDGE of the Universe" suggests the former.
But BOTH are wrong. The Universe appears to be finite, closed, and expanding, but it also contains ALL of time and space as we understand them. In order to "stand outside" the universe and observe it, one would need other dimensions than space and time.
If we look far enough back in time, we see the Big Bang. Before/beyond that is nothing that we can observe and little that we can understand.