3 mannequins will assess radiation

Te spacecraft will host three simulated humans:

• The Matroshka AstroRad Radiation Experiment (MARE) science team, which also includes investigators from DLR (the German space agency), loaded two mannequin torsos (or phantoms) into the spacecraft. Nicknamed Helga and Zohar, each will fly with 5,600 sensors to measure radiation, and Zohar will wear an AstroRad radiation protection vest to see how much of a difference that makes.
• The third one is named after Apollo 13 engineer Arturo Campos and includes sensors for acceleration, vibration, and radiation to assess the stresses of space on a human being during launch, spaceflight, and landing.