

In space, it is critical that each astronaut be able to apply knowledge and skills for a specific mission as well as those that may be needed in the event of unforeseen circumstances. An astronaut must therefore have a wide variety of technical qualifications and interpersonal skills, which are developed through a customized training program that continues throughout his or her career—even during missions.
Astronauts must devote a large portion of their time to training. Once selected by the CSA, astronaut candidates undergo basic training, to earn the title of "astronaut". After completing further training, they are eligible for flight selection. Each crew is carefully chosen based on the specific needs of the flight and the availability of qualified astronauts.
A typical training program for Canadian astronauts would include the following:


Astronauts are expected to maintain their skills at all times. For example, Canadian astronauts on assignment at the Canadian Space Agency in Saint-Hubert, Quebec, are expected to maintain a high level of physical fitness, keep their Russian language skills up-to-date, and participate in Mobile Servicing System (MSS) activities. Astronauts may also maintain and further develop their skills by working in simulated space missions such as NEEMO - NASA Extreme Environment Mission Operations.
