tom swift among the diamond makers

 there are so many layers of the hemisphere like four and one is going out like over 1 thousand miles. into pace, it's almost completely made out of helium. and the third to last hemisphere is the hemisphere that normal planes fly at and the top hemisphere. is where the satellites are launched save as they have the right equipment the massive amounts of helium. in that place to knock down the heat op their also another thing it goes like the first hemisphere is cold the second is warmer. the third is cold and the last one is just about pretty hot the one after that is the one with the helium. so there are kind of actually five places but that last one  doesn't really count just because ya its huge.