If the world is going to hell, where would you go? Elon Musk has staked much of his fortune on SpaceX and its relentlessly pursued goal of colonizing Mars. But Mars is not the only place humans could go.
There are other worlds in the Solar System where humans could walk without space suits, find ample energy, or even swim in subsurface oceans. None of these places are remotely as habitable as Earth. Here's a guide to the five-best options for DIY colonists.