“at the edges of the universe space is expanding faster...” Expanding into what? I’m not disagreeing with you, I’ve just always wondered what the universe is expanding into. If you could go to the very edge of the universe what’s on the other side to expand into?
The edge of the universe is the limit at which we can detect anything. That doesn’t mean there isn’t anything past that edge, but it probably does mean we can’t know.
I've often wondered that too. If you could travel to the very edge of the universe and look out your ship's window, would there be nothing but pitch black but then look behind you and see all the stars left behind? That would be pretty disconcerting.
I've always equated the planets and stars of the universe as nothing but atoms within a big box.
We most likely have no way to comprehend it.