Does the universe have an edge? No. It doesn’t have edges, or a center, or any other certain points that are distinguishable from any others, at least not inherently. I mean, yes, of course, it has planets and stars and one place may be different than another, but there’s nothing about it like the Earth’s poles that are constant and unchanging. The universe is infinite and expanding faster than anything could ever travel.
That being said, there’s an old Star Trek episode where they come across the edge of the galaxy. Of course, there’s nothing special about the edge of our actual galaxy. But in the Star Trek universe, there’s negative energy or something that either kills people or gives them telekinetic powers. It was only in the Original Series, but TNG later touched on it; I guess it had something to do with Q. Whatever. Anyway, that’s what I was thinking of when I made this. Here’s a small portion of the image at full resolution:
It’s sort of like your starship is right off to the side, looking at this massive barrier that’s so huge it’s literally impossible to fathom. You can buy this piece in metal and canvas prints, in varying sizes, plus phone cases, tapestries, and more. The shine of the metal prints is especially a sight to see – in the right light, it practically leaps right out at you. Would you try to pass through? We take no responsibility for what happens if you stick your hand through. Here it is in full: