I lit the last cigarette I would ever smoke and took my airsuit out of the compartment under the control-board. The two-man cubicle was coffin-cold even under the blast of sunlight pouring through the forward port, and the air smelled of stale tobacco and machine oil. Beside me Charlie Kosta's voice droned into the communicator, winging back two-hundred thirty thousand miles to the listening millions of Earth. "Our air is nearly gone," Charlie said. "We have about twelve minutes left for deceler