read People all over the world knew about Apollo 13 now. They about it in newspapers and watched pictures of Mission Control on television. They all wanted the astronauts to come home Ken Mattingly wanted them home, too. get the The doctors were wrong about Ken didn't in measles. When he walked into the simulator building Houston, the controllers were happy. Ken knew more about Apollo 13 than they did. "We want you in the "Ken! This is great!" said John Arthur simulator." have?" Ken asked. "Do we How much power does Apollo know?" "No, not really, John answered. power. The "OK." said Ken. Let's find the astronauts more cold command module is cold now, so make the simulator Everything in the simulator has to be the same. Give me a light A controller gave Ken a light. Ken gave it back. said only They have a different kind of light up there he want the same. simulator. Ken took a book and went into the Above him in space, the astronauts started to turn off their machines and their engines. Gravity threw them to Earth. Ken didn't have much time.