Two years in the making, “Packing for Mars” necessitated visits to aeronautic institutions in various countries, as well as the sipping of her own recycled urine. For research. Asked if it was difficult to get NASA’s American astronauts to confess about vomiting or mid-orbit existential crises, she simply says: “Why do you think I went all the way to Russia?” During her Russian trip, it should be noted, she describes touring a museum dedicated to Soviet rocketry, discusses head lice and takes shots of whiskey with retired cosmonauts. All by 11 a.m., Moscow time.