Gabby Giffords is a former Congresswoman and her husband, Mark Kelly is a Navy captain and NASA astronaut. Mark and his identical twin brother Scott will have just completed NASA’s study of the effects of a year in space, with Scott on the international space shuttle while Mark remained on Earth. Mark and Gabby’s individual stories are captivating: Mark facing danger as a Navy pilot and in space, Gabby on presumably safer ground, in Congress. As individuals, they show how optimism, an adventurous spirit, and a call to service can help change the world; as a couple, they are a national example of the healing power of shared love and courage.