Jeff Bezos, the founder of Amazon, is latest in a line of billionaires who thinks we should all be able to space travel. This week, one of his side projects, Blue Origin, announced the launch of their rocket. he says, "We're working, patiently and step-by-step, to lower the cost of spaceflight so that many people can afford to go and so that we humans can better continue exploring the solar system. Accomplishing this mission......