Overview
Follow astronaut Scott Kelly's 12-month mission on the International Space Station, from launch to landing, as NASA charts the effects of long-duration spaceflight by comparing him to his identical twin on Earth, astronaut Mark Kelly.
Cast
- Scott Kelly as Self
- Mark Kelly as Self
- Mikhail Kornienko as Self
- Gennady Padalka as Self
- Amiko Kauderer as Self