>>12784080>But as we observed before, gravity does not hold down gas in a vacuum.gravity is only noticeable in planetary scales
a regular vacuum and a solid human size sphere doesn't cut it
the same reason why planets and stars end up being spheres and not cubes, gravity gives them the most space-efficient form
you can imagine the atmosphere the same way, its still attracted to the earth due to gravity yet the further away you get the weaker gravity is and thus the lesser the preassure,
its a gradient until you reach the almost vacuum of space
