Two large chairs were bolted to the metal floor. Each had a control panel on the arm of the chair within easy reach of the occupant. The wall was dominated by a large video screen that changed images frequently as it showed the outside of the ship and several internal rooms, including a supply area and a main corridor. Several men and women stood in front of a large control panel and adjusted levers, typed into keyboards, and turned knobs. From the largest chair, which was positioned on a platform overlooking the room, the captain spoke. She said, “If all systems are working, we shall begin the launch countdown.” List five descriptive details from the passage: