Space X’s highly anticipated Polaris Dawn mission is set to launch later this summer – with an all-civilian crew. And a big part of their mission is researching how space changes the human body.

The idea that the human body completely regenerates itself every seven years is a widely shared “fact.” But how much truth is there to this claim? While the body is constantly renewing itself, the ...

How does the human body cope with the world’s highest peak? At Everest’s “death zone,” oxygen levels drop so low that cells start to die and thinking becomes foggy. Climbers risk brain swelling, fluid ...

Lower gravity. Higher radiation. No ER access. These are just a few of the challenges that humans face in outer space. Emily and Regina talk to a NASA astronaut (and astronaut scientist) about the ...