Interplanetary travel? No one ever thought it would be this hard, especially the folks that are not literally 'rocket scientists' Why is it that 50 years after the official start of the Space Age we do not have colonies on the moon and Mars already? Why are we still plodding along in Earth orbit? There are a million of these kinds of questions you can ask, but when you dig into their answers you uncover something very odd indeed. In my previous book...