I know there are no actual boundaries, other than the point where our atmosphere ends and space begins. My question is based on the idea that, on the planet, we have "national boundaries" where an ocean meets a landmass, and the country there claims the ocean within that boundary as national waters, and outside of that boundary as international waters. Is there such a boundary when it comes to space? Is there a point where all the space between the planet and that line is the territorial space of earth (and divided up according to what country that space is over), and beyond that line is international, or interplanetary, space? I ask because I know that when it comes to mineral rights, a landowner that has such rights, so far as I know, has the rights straight down all the way through the crust, perpetually all the way to the center of the core of the planet. (Yes, I know that no one tries to claim rights that far down.) I am trying to determine where one might be able to "stake a claim" to a part of space that no earth agency can override due to their own claims. I know this is a science forum, not a political one, but there is no information I can find online anywhere, and I felt that if scientists have any idea of where our control of space ends, this would be the place to ask.