Nick
Frozen Fighter
I don't know what space is, but I know it doesn't exist, because it doesn't have a mass.
Then you come into the realm of dark-this/that, shit that we cannot physically/scientifically observe at all, but we know its present and accounts for most of the universe, and its pushing everything faster and faster away (more entropic state).
It's still a mish-mosh of shit we don't know yet, figure out a way to observe something invisible, yet everywhere and is weakly attracted together in bunches and you'll get a bunch of awards.
Next, there a drugs that chemically explain to you what space is, you can grow them on dung.
Third you should throw freewill into the whole question of what's what and maybe we'll fall into a quantum conversation.