things work differently in space than earth, you can't make the same comparisons.
there is no gravity there, no oxygen in space, black holes, light must travel differently there.
that is if you even believe there is space above earth? if not then there is no way to help you understand without taking you on a manned mission above earth in outer space.
you'll have to wait until the billionaires find a way to profit from a travel industry there, since NASA and the government isn't funded for it by the taxpayer.