Those in sleep stations are able to close the compartment doors to reduce outside light and have some extra privacy. Each Space Shuttle has a toilet that can be used by both men and women. Designed to be as much as possible like those on Earth, the units use flowing air instead of water to move waste through the system. Solid wastes are compressed and stored on-board, and then removed after landing. The air is filtered to remove odor and bacteria and then returned to the cabin.
Astronauts brush their teeth just like they do on Earth.
There is no shower on the shuttle, so astronauts must make do with sponge baths until they return home. Wastewater is vented to space, although future systems may recycle it. There are seven Canadian Astronauts. Chris Hadfield and Dr. Marc Garneau. Dr. Roberta Bondar and Dr. Ken Money left the CSA in the summer of 1992 and Capt.