Chris Hadfield Brushes his Teeth in Space.Canadian astronaut and Commander of Expedition 35 answers a question about how astronauts brush their teeth in space. You might be surprised by what he reveals!

https://youtu.be/CtP-kKhdU4I

Submitted October 04, 2016 at 01:41PM by chingchong- http://ift.tt/2d0K2U0