rom inside the dome, the night sky is a beautiful thing, even though Deimos and Phobos are nothing to brag about. If you walk outside, maybe as far as the rocket field, you notice a difference. Past the narrow developed strip around the dome, the desert land lies as chilled and brittle as it did for eons before Earthmen reached Mars. The sky is suddenly raw and cruel. You pull your furs around your nose and check your oxygen mask, and wish you were inside something, even a thin wall of clear pla