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The GCR does not affect us here on Earth, because we are protected by the magnetosphere of our planet. We have not evolved to be able to take huge quantities without this additional protection – and no, the current protection technology can not block it. Kamal Datta, the principal investigator of the study, explained: "Heavy ions such as iron and silicon are harmful because of their higher mass than massless photons such as X-rays and the gamma rays scattered on Earth, as well as the low-mass Cosmos protons. "
The researchers conducted their experiment by exposing mice to a low dose of ferrous radiation. They discovered that mice exposed to this type of radiation were no longer able to properly absorb the nutrients contained in the food and had even developed cancerous polyps. The control group and mice exposed only to gamma rays did not exhibit the same symptoms. Datta added that it was also proven that iron radiation could induce DNA damage in gastrointestinal cells, prompting them to "generate oxidative stress and inflammatory molecules inducing further damage" . So, how can we protect astronauts' guts from radiation damage? Corporations and space agencies will need to develop protective technology that can protect it and create drugs that astronauts can use to protect their guts.
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