Provides answers to kids' questions about space travel and life without gravity, and explores how everything from food to living in close quarters with other people to going to the bathroom has been engineered by NASA for astronauts living in space. Features interviews with astronauts and NASA engineers. Includes black-and-white photographs.

"Adapted from Packing for Mars: The Curious Science of Life in the Void." Includes index.

Gravity rules -- What's it like to fly? -- Barfing on the ceiling -- Toilet training for grown-ups -- Strange dinners -- Life without a bath -- Roommates for very small rooms.