How scientists are keeping the Orion spacecraft safe from radiation

When NASA’s Artemis I mission launched on its journey around the moon in 2022, there weren’t any astronauts aboard — but there were two torso-shaped dummies, named Helga and Zohar, who were designed to test how much radiation astronauts can expect to be exposed to when they do eventually fly on the Artemis II and III missions.

Source: How scientists are keeping the Orion spacecraft safe from radiation