Editor's note: Shenzhou-12 taikonauts have successfully returned to Earth on Friday after a three-month journey in China's space station. Upon completion by the end of 2022, China's space station will be ready to welcome international astronauts. What do you think that would look like? Check out this episode of "Thought Bubble" to find more.

Episode Ⅳ: The life of taikonauts in space

Editor: Yuan Xin

Senior producer: Wei Wei 

Managing director: Mei Yan

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