CAPE CANAVERAL, Fla. — In his new autobiography, retired astronaut Scott Kelly gives an unflinchingly blunt take on his U.S. record-breaking year in space and the challenging life events that got him there. This isn’t your usual astronaut’s memoir. Kelly recounts dumpster diving on the International Space Station for discarded meals after a supply capsule was destroyed and ending up with “some dude’s used underwear” in his hands.