Kelly discusses this and more in his new book, Endurance: A Year in Space, A Lifetime of Discovery, which recounts his year aboard the ISS as well as his rough-and-tumble New Jersey childhood and what sparked his astounding career, changing his trajectory from an unfocused, below-average student to a record-setting astronaut. Kelly describes navigating the extreme challenges of long-term spaceflight: the devastating physical effects; the pressures of constant close cohabitation; the catastrophic risks of depressurization or colliding with orbital debris; what it’s like to know you won’t be home for a year (and the feeling of being unable to help when tragedy strikes at home). He writes with candor about his journey, in space and on Earth, and tells fascinating (and often funny) stories about the Russian cosmonauts who accompanied him aboard the ISS. As Kelly says—a lesson he’s learned firsthand—“if we can dream it, we can do it.”