NASA Astronaut Jonny Kim works inside the Harmony module

iss073e0817658 (Oct. 1, 2025) --- NASA astronaut and Expedition 73 Flight Engineer Jonny Kim works at the maintenance work area inside the International Space Station's Harmony module hydrating, agitating, and preparing production bags containing bioengineered yeasts and probiotic cultures for incubation. These activities are designed to demonstrate how astronauts could grow and safely consume fresh vitamins and nutrients on demand helping researchers plan future missions farther from Earth.