Increased Chromosome Aberrations in Cells Exposed Simultaneously to Simulated Microgravity and Radiation.

Space radiation and microgravity (μ) are two major environmental stressors for humans in space travel. One of the fundamental questions in space biology research is whether the combined effects of μ and exposure to cosmic radiation are interactive. While studies addressing this question have been carried out for half a century in space or using simulated μ on the ground, the reported results are ambiguous.