The closest thing on Earth to a mission to Mars
- Scientists are using Antarctica to research effects of long space missions
- “You’re so far removed it feels like you’re standing on another planet,” says Alex Kumar, who has worked there
- Living there brings challenges of isolation, lack of daylight and stress
Vital Signs is a monthly program bringing viewers health stories from around the world.
(CNN)The buildings lie at the southern-most tip of the Earth, on a plateau 3,200 meters above sea level. Other than their occupants, the nearest human beings are 600 kilometers away, making it more remote than the International Space Station.