These avatars will fly around the moon with NASAs Artemis 2 astronauts

When the Artemis II spaceship carries four astronauts around the moon, it will also bring four miniature proxies of the crew made from their own cells. 

Alongside crew commander Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen will fly lab-grown tissue samples designed to mimic parts of the crew's bodies, particularly bone marrow, a key component of the immune system. The NASA experiment, called AVATAR — short for A Virtual Astronaut Tissue Analog Response — aims to show how...