this post was submitted on 11 Oct 2023
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As a little nitpick, "extreme pressure" is partially true. We do need "extreme" pressure; not extremely high pressure, but extremely low pressure. We have these series of pumps that are able to remove more and more particles at each step. We have your standard pumps that get rid of most gases, then we have turbomolecular pumps that blow away a lot of the matter that remains, and then we have things like ion pumps, which electrocutes molecules in a vacuum and sucks them out using electric fields. This way, we're able to create better vacuums here on Earth better than Space itself.
And honestly, that's pretty much wizardry to me.
Space is a terrible vacuum. It's full of literally everything.
In that regard Space can no longer be considered to be a vacuum. Not even remotely.
The distance between stuff is so inconceivably huge that it's still a vacuum. Kind of incredible to think about.
What are you even talking about? I can see loads of stuff right here.