JAXA astronaut Kimiya Yui shows off production bags containing bioengineered yeasts

iss073e0818445 (Oct. 2, 2025) --- JAXA (Japan Aerospace Exploration Agency) astronaut and Expedition 73 Flight Engineer Kimiya Yui shows off production bags containing bioengineered yeasts and probiotic cultures for the BioNutrients-3 investigation. Yui conducted passaging and straw tests to demonstrate how astronauts could grow and safely consume fresh vitamins and nutrients on demand helping researchers plan future missions farther from Earth.