Preview: Episode 1 | 30s
Follow astronaut Scott Kelly’s record-breaking 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.
The full episode is no longer available for online streaming. Why?
Please continue to enjoy extra(s) from this episode.
Problems Playing Video? | Closed Captioning