Depends on what you mean by edge. If you mean edge in the sense of the physical limit: it is unknown; if you'd see anything at all. More than likely, our universe has a vastly complicated curve to it that from our position in it, cannot be seen. Not allowing for there to be an actual edge.
Like 1 dimensional ants on a piece of paper.
http://astronomy.nmsu.edu/geas/lectures/lecture28/slide03.html
If you mean edge as in the end of the visible universe, you would simply see more universe. With earth being at the edge of that visible universe (assuming that space's expansion is the same throughout, and that we got to said point instantaneously). And that visible edge, just like ours is steadily receding.
Human beings always see the past. Light travels to our eye from the source or a reflected surface. The stars we see are from the past. The Universe is full of light. It only looks black because the light from vast distances requires time on target to collect and resolve.
Science has measure expansion of the Universe, it is not receding. Relative to our detection abilities at any given time, all points in the Universe appear to continue on into infinity. We determine mass as the composition of the Universe. Energy exists beyond our detection limits. Just because we can't see it doesn't mean it doesn't exist.
The whole concept of this exercise is moot because we have determined that light has traveled 14.6 billion light years from a source. We can't travel 14.6 billion light years to look at what lies beyond. We can never prove one way or the other. You might as well say at the edge of the Universe is a giant fuzzy bunny.
Edit to add:
Consider that the light from 14.6 billion light years exists. That light has also traveled 14.6 billion light years in the opposite direction. Since light exists as a particle and a waveform,
Quantum mechanics tells us that light can behave simultaneously as a particle or a wave.
it is safe to think that the Universe is at least 29.2 billion light years. But the Hubble deep field is understood as a constant that saturates view in any direction. Bringing the Universe to at least 58.4 Billion light years in diameter. That is only considering that we measure using light as a determination. For simplicity I refer to light as the electromagnetic spectrum from (Y) Gamma to (ELF) Extremely Low Frequency.
http://en.wikipedia.org/wiki/Electromagnetic_spectrum
Not only do we not know if there is wider range to that spectrum we don't know if something else, not discovered yet, measures distance at greater ranges.
Edited by
Tom4Uhere
on Mon 06/05/17 07:59 AM