 MARE offers a unique opportunity to measure tissue dose deposition and test the effectiveness of the AstroRad vest when exposed to the harsh radiation beyond low Earth orbit.The crew compartment of the unmanned Artemis 1 Orion spacecraft will include two female anthropomorphic phantoms that will be exposed to the intense radiation environment during the spacecraft's lunar orbit.One phantom will be shielded by the AstroRad vest and the other will be left unprotected as a control.