RT @csa_asc: @Cmdr_Hadfield demonstrated today how astronauts wash their hands in zero-g: youtube.com/watch?v=JUUvln… Hygiene in space: http:// …
RT @csa_asc: @Cmdr_Hadfield demonstrated today how astronauts wash their hands in zero-g: youtube.com/watch?v=JUUvln… Hygiene in space: http:// …