Emergency procedure training for the International Space Station

Astronauts train for all sorts of different situations that they could encounter during their mission. Emergency training simulates dangers like fire, depressurization, or air contamination. 

Members of Crew-13, Sergey Teteryatnikov of Roscosmos and Luke Delaney of NASA, put on breathing masks inside a mock-up of the International Space Station.  (Credit: NASA/Helen Arase Vargas)