You don't have to be a rocket scientist to understand rocket science. This book shows how easy it is to understand space flight and orbital mechanics. In this book you'll learn how gravitational and centripetal forces cancel to enable orbits. You'll learn how orbits are classified and how to do orbital transfers. You'll even learn to do space mission design for interplanetary missions. Finally, you'll lean how to simulate orbits on your computer. You'll be surprised how easy it really is. With this book you also get the author's Mathcad code for simulating orbits.