How can scientists possibly know where the end/edge of the universe is? I don’t think they have that large of a telescope. If it would take 30 billion years to reach the edge of the universe, how would we know we’ve reached it; is there a wall? I was taught there wasn’t an end to the universe which I admit my little mind had a tough time grasping; kind of like if God can do anything, can he create a wall he can’t jump over? This also messes with my mind.