As you get further away from the Earths surface the particle size gets smaller and less dense. The edge of the Atmosphere is a layer of Hydrogen which causes the heating up on re-entry into the atmosphere. The there is a thick layer of Leptons, This is where most satellites orbit in this Lepton Field. Then there is a thick layer of of Quarks which is where the Van Allan Belt exists. Once you leave the Van Allan Belt and Quarks field you are now in the 4th dimension of just Bosons. This information came from a book called 'Occult Science'