This is the hardware that will contain the AVATAR chips during the Artemis II flight. The AVATAR (A Virtual Astronaut Tissue Analog Response) investigation will use organ-on-a-chip devices, or organ chips, to study a effects of increased radiation and microgravity on human health. Artemis II AVATAR is a small experiment flying aboard Artemis II that could lead to big impacts in healthcare, both for astronauts in space and citizens on Earth. For more information on AVATAR: go.nasa.gov/4m5dGH9