The movie Apollo 13 is about three astronauts going to walk on the moon. Then something goes wrong – really wrong. The astronauts have to figure out how to get back. In the book Cosmic, the exact same thing happens. Liam and the children don’t do what they were supposed to and the spaceship went out of orbit. In both stories, they use free-return trajectory to get back to Earth. In Cosmic, however, they do get to land on the moon, whereas in Apollo 13 they do not get to land on the moon. While one is fictional and the other true, these stories – one a movie and another a book – are both extremely suspenseful. We recommend them.