in 2013, commander sunita williams takes viewers on a tour of the international space station. she talks about how they sleep, how they exercise, and even how they go to the bathroom! how do astronauts sleep in zero gravity? where are the sleep stations located? how have the spacesuits changed since first designed in 1997? what continent was the space station viewing? how did sunny know this? how do spacecraft attach to the space station? do you think sunny should have put her hair in a ponytail? why or why not?