A Year in Space - 1 ª Season

Despite the technological "comforts" of the ISS, a year in space - the longest space mission in American history - has been described as the epitome of extreme, with extraordinarily high physical stakes. Following Scott in space and his identical twin Mark Kelly at home on Earth, the specials will tell the story of what it takes, mentally and physically, to spend a year in space and then, using what NASA has learned from the Kelly brothers, what it means for humanity as we journey to Mars and beyond.

Before leaving Earth, astronaut Scott Kelly heads to a once secret space center outside Moscow that is now the scene of an unprecedented collaboration between former enemies.

Scott Kelly begins his long separation from the rest of humanity well before he leaves Earth, as he and his crewmates enter the curious world of pre-flight quarantine.

The final hours on Earth are a series of rituals - both technological and personal - as the clock ticks down and the engines ignite.

NASA astronaut Scott Kelly boards the International Space Station and adjusts to life in space.