My advice is you're on the fence about kids, don't adopt.
We adopted because we thought "we're actually pretty good at this, and hey, there are kids out there who desperately need a family".
Let me tell you, it is so much harder, for so many reasons. I can't even fully express it, it's so much harder.
Well, technically there really isn't much up there now.
I mean in low earth orbit it's what, 99.999999999999999999999 % empty space? With the tiny fraction left being satellites.