There's only one it's-the-future-why-don't-we-have-x trope that rivals the flying car, and that's the space elevator. (First proposed in 1895, it might even predate it.) The idea of a giant tower that can carry us from Earth to outer space is legend, and it probably will be for a long time.
Because we don't spend a large chunk of time up there, we haven't done too much research on the long-term health effects of living on the moon. But a paper titled "Toxicity of Lunar Dust," covering several aspects of the effects of moon dust on the human body, offers some insight: the moon is basically trying to kill you.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.