Astronauts are trained to live and work on spacecraft outside Earth's atmosphere. However, not everyone who pursues this career path will make it to space. Astronauts must be in peak physical condition. They must be very smart and act fast if something goes wrong. Those who do make it to space have been through very difficult training. Readers will be drawn to this volume by the exciting subject matter and the amazing photographs of astronauts and their support staff at work. Let's blast off!.