Astronaut Chris Hadfield Trains for ISS Medical Emergencies

Canadian Space Agency astronaut Chris Hadfield and NASA colleague Tom Marshburn train for medical emergencies in an International Space Station (ISS) simulator at NASA's Johnson Space Center in Houston, Texas.

Hadfield and Marshburn will take part in Expedition 34/35, a long-duration mission on board the ISS that launches in December 2012. (Credit: CSA)