But I tried not to show it The three astronauts went up to the top of the rocket. Then, they got into the command module Odyssey. After the months in the simulator, they knew the command module well. Jim's chair was on the left. Jack's chair was in the middle and Fred's was on the right. In front of them were the controls more than five hundred of them outside the command module, a man closed the door. The astronauts watched the controls and waited. At the big Mission Control room in Houston, Texas. the controllers were busy. They could see Apollo 13 on their televisions