Aspiring astronauts will be ready for liftoff with this thrilling guide to preparing for and doing a real spacewalk with the first American woman to walk in space as their partner. What is it like to walk in space--to use cutting-edge equipment and conduct experiments in a 280-pound space suit? How do you get there in the first place? Would-be spacewalkers will find enthusiasm, vibrant encouragement, and a host of amazing facts, photos,...