51 points
15 points
8 points
In that regard Space can no longer be considered to be a vacuum. Not even remotely.
4 points
The distance between stuff is so inconceivably huge that it’s still a vacuum. Kind of incredible to think about.
4 points
1 point
5 points
This is absurdly untrue. Space is VERY empty. The above comment is just plain wrong. CERN has the best vacuum in the world at around 1000 atoms/cc. Deep space is less than 1. Even nebulae have a density far below 1000 atoms/cc, and those are the most dense regions of space.
It may be true that we use vacuum pumps for chip manufacturing that get vacuums less dense than the exosphere, which we like to call space sometimes, but it’s definitely influenced by Earth and not a good definition of a space vacuum.
1 point