Astronaut Scott Kelly holds the American record for most days spent in space. A veteran of four flights, Kelly commanded the International Space Station on three missions. He joins us to talk about navigating the challenges of long-term spaceflight, which he writes about in “Endurance: A Year in Space, A Lifetime of Discovery” (Knopf).
» Also: Read the Dallas Morning News story Scott Kelly was a kid with ADHD and bleak prospects. Then he read a book. Now he’s a record-setting astronaut.