The edge of the universe is not necessarily observable for us. But the edge of the universe that is observable to us is not only far away, it is far away in time, more primordial than anything.

According to our current observation and understanding, the universe is expanding and accelerating. That is to say that is expanding ever faster, to the point that at the edge of our observable universe it expands faster than the speed of light. That creates a kind of spacial horizon we cannot observe beyond, because light coming from the other side will never reach us. And this horizon is drawing ever nearer to us. Eventually, many of billions of years in the future an observer from our galaxy, may not be able to see past our galaxy.