(Paperback, No Edition)

If you've seen astronauts returning to Earth you'll have noticed that they have difficulty standing up because their muscles and bones have weakened. They also have problems with their vision, their sense of smell, and the bottoms of their feet. What happens in space that causes the human body to react and change

(Hardback)

Former NASA astronaut Williams takes readers on a tour of the incredible equipment that allows humans to travel, live, and work in space. Lots of photos and humorous illustrations make this an entertaining way to get kids interested in the nuts and bolts of space travel today and into the future.

(Paperback)

"Machines of every kind are the backbone of space travel. In this, the third book in the Dr. Dave Astronaut series, the former NASA astronaut takes readers on a tour of the ... equipment that allows humans to travel, live, and work in space, with a focus on technology and engineering"--