Jansen began to sweat as soon as he left the spaceship. The bloated, swollen sun hovering near the horizon here in twilight zone was dazzling even through his protective goggles. Jansen knew he would have to get used to it: Mercury's twilight zone, like it or not, would be his home for the indefinite future. Stowing his gear in the barracks while sweat streamed from his body, Jansen realized for the first time that his luggage had been examined aboard the spaceship. That was bad; it could mean a