Where on earth could you go to practice living on Mars? This month, you could go to Devon Island, a few hundred miles from the North Pole. Devon happens to be one of eight sites chosen to practice Martian living skills. A volunteer group of four men and three women will enter a habitat module in Devon where they will live through Aug. 1. They will have limited contact with the outside world and all activities will be conducted as if they were living on another world… namely, Mars.