If Space is a vacuum with nothing in it, then what would the edge of the universe even mean

Question

…it would be a ‘border’ between nothing and nothing?

In: Planetary Science

Answer 1

We don’t know what is at the “edge”, but space as we think of it, isn’t exactly nothing. Laws of physics like gravity and time have an effect on it. Lawrence Krauss talks about the topic and defines nothing as, no space, no time, no physics. Here are 3 videos of 3 lengths, if it holds your interest.