>>5437850They're not, it's because satellites don't pass directly over the north pole, so they can't map anything there.
It's an orbital mechanics thing, so of course brainlets on /pol/ don't get it.
take my pic, notice how the satellite orbit doesn't pass over the north/south pole? Now take this map and transform it into a sphere, what do you get? You get a hole at the north/south pole where there's no satellite coverage.
There's only a few satellites that pass over the poles because it's an expensive orbit to go into - expensive in this case means it costs a lot of delta-v to get there; due to the spin of the earth, satellites naturally want to following along the orbital plane, so you have to cancel that momentum out.
t. not a fucking retard.
