The Orion spacecraft on the Artemis I mission is carrying, as part of the MARE experiment, two human "phantoms" equipped with numerous cosmic rays detectors. The information gathered by the detectors will for the first time verify the knowledge, crucial for the presence of humans in deep space, of the effects of cosmic rays on the health of the astronauts who are to live and work in an environment devoid of the protective effects of our planet's magnetosphere.
