The candidates must respond to Russian commands correctly, in order to demonstrate their capability to operate after the physical and mental overload of a simulated launch. Their dedication and rigorous studying to become a potential astronaut is put to the ultimate test.

Best of Earth Science: http://bit.ly/EarthLabOriginals
Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos

Astronauts: Toughest Job In The Universe (2017)
Space is the ultimate destination. But life there requires extraordinary ability. Millions dream of becoming astronauts. Few make it a reality. So, what happens when you take 12 people at the pinnacle of their professions, and put them through the gruelling process of astronaut selection? As the candidates push themselves to the limit, they’re assessed by a doctor, a psychologist, and an experienced astronaut. If they don’t make the grade, they’re asked to leave. Who will have what it takes to attempt the toughest job in the universe?
This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-feedback-...