The Human Body and Weightlessness

Space adaptation syndrome

Space adaptation syndrome (SAS) or space sickness is a condition experienced by as many as half of all space travelers during their adaptation to weightlessness once in…

Weightlessness

Weightlessness is the complete or near-complete absence of the sensation of weight. It is also termed zero gravity, zero G-force, or zero-G.

Micro-g environment

The term micro-g environment (also μg, often referred to by the term microgravity) is more or less synonymous with the terms weightlessness and zero-g, but with an…

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