Our three big emergencies are fire, loss of pressurization or contaminated atmosphere. Any of those things in a spaceship are very deadly and time critical. Everybody's trained, but I'm the commander of the ship, and it's up to me to decide.

On 19 December 2012 Hadfield launched in the Soyuz TMA-07M flight for a long duration stay on board the ISS as part of Expedition 35. S.

Chris Hadfield OOnt MSC CD (born 29 August 1959) is a Canadian astronaut who was the first Canadian to walk in space. On 19 December 2012 Hadfield launched in the Soyuz TMA-07M flight for a long duration stay on board the ISS as part of Expedition 35. He arrived at the station on 21 December as scheduled and became the first Canadian to command the ISS when the crew of Expedition 34 departed.