Why isn't a void the same as space only without matter?

Question

Or is that the only difference between void and space?

Answer 1

A vacuum is without matter or outside influence, space can contain matter.

Answer 2

Void is relatively small compared to space . When we launch a satellite we don't put our traveling wave tubes in a glass envelope . The space is a better vacuum than we can create here. The gravity of the planets slowly pull every thing out of space.

Answer 3

No, there in a big difference. Space contains matter, this matter moves and creates events which create time, and the movement of matter creates electomagnetic fields that permeate space. The void is just what it's name suggests.

Answer 4

In modern physics, the vacuum (space without particles) is actually quite complicated, because it contains all the particle fields in their lowest energy state. That is, it has the potential for particles to exist. The Dark Energy that seems to dominate our universe is an energy associated with the vacuum.

A void would be a vacuum without all the zero-energy particle fields (and presumably without the laws of physics) in it.