Are Humans Fit for Space? A ‘Herculean’ Study Says Maybe Not

Are Humans Fit for Space? A ‘Herculean’ Study Says Maybe Not

A human mission to Mars could last as long as three years, and in the laconic tones of the twins study, “genetic, immune system, and metabolic functions are of particular concern given exposure to space radiations, restricted diets … disrupted circadian rhythms, and weightlessness.”.