NASA astronaut Mike Fincke shows off research samples for the BioNutrients-3 investigation

iss073e0657978 (Sept. 10, 2025) --- NASA astronaut and Expedition 73 Flight Engineer Mike Fincke shows off production packs containing research samples for the BioNutrients-3 investigation. The biotechnology study explores ways to produce vitamins and nutrients on spacecraft helping supply adequate nutrition for long-term space missions. Fincke treated yeast, yogurt, and fermented milk samples then stowed them in a research incubator for later analysis.