Spaceflight is hard on humans, but scientists see no showstoppers
Spaceflight can be brutal on the human body — bones lose density, muscles atrophy, the immune system goes haywire — and countermeasures will be necessary if large numbers of people…
Spaceflight can be brutal on the human body — bones lose density, muscles atrophy, the immune system goes haywire — and countermeasures will be necessary if large numbers of people…