[AndrewC]

Space is a violent place.

But it is mostly empty. I think that is why it is called "space".

1 × 10−27 kg/m3

Very approximate density of the universe

But then again an atom is more dense, so I guess it all evens out in the end.

1.1418822249239304929572734539251e+4 kg/m³ (at least that is what my Casio says)

[decimon]

Space is a violent place.

But it is mostly empty.

Except for the snakes. I've seen the snakes.

[frithguild]

But it is mostly empty.

Yes, but it is "lumpy," which leave one to wonder what may be in the path of the sun as it orbits the galactic center and how that may cyclically effect our solar system "weather." Very little thought goes to this, it seems to me.