What is the zero-gravity position? The zero-gravity position originates from a series of posture standards developed by NASA for astronauts. In weightless environments such as spaceflight, the ...

The zero-gravity sleep position, which can be achieved with the help of a specialized bed, entails sleeping with your head and legs elevated, and your knees resting at an angle, says Dr. Mara ...

NASA releases new information about how men and women react differently to living in space.