Scott Kelly is a NASA astronaut and Expedition 43 flight engineer based at the International Space Station.
Can Genetic Engineering Help Humans Live In Space?
Astronaut Scott Kelly talks about the bodily effects of a year in space, and author Christopher Mason explores how to help humans survive.
One Year Aboard The Space Station
Astronaut Scott Kelly—aboard the International Space Station—and his Earth-bound twin brother, Mark, talk about the effects of living in space for one year.