So far They do not know what to do when it comes to Claiming space but i was thinking what if they did it the Same way they do on the ground but in like a Ball State like this.
https://3dwarehouse.sketchup.com/warehouse/getpubliccontent?contentId=7bdf1f6b-50fb-48b3-8d25-0e837e8c5c39
This would make it Possible like 10-100 Km in Radius.
Plus it would like you build Big Ships/ Space stations and if they do not have a Way to claim space yet how about just making the Claim unit Bigger and make Float in Space instead of have Stands to hold it up or just make a Space station First then place the Claim unit inside of it.
Just a Idea i just had I hope you guys/Gals Like it.