Expedition 75 crew members aboard the International Space Station bioprinted blood vessels and carried out a spacesuit fit check in the Quest airlock, NASA reported on October 22, 2026. Flight engineer Luke Delaney removed vascular cells from a science freezer, thawed and mixed them with a biological printing material, then loaded the mixture into the BioFabrication Facility in the Columbus laboratory module. Anil Menon later preserved and nourished the printed tissues inside the bioprinter for cultivation.

Earlier, Menon and Jessica Watkins assisted Canadian Space Agency flight engineer Joshua Kutryk as he tried on a spacesuit, checking fit, comfort and systems; such checks also account for body changes in microgravity. Menon and Kutryk are scheduled to exit Quest together on October 29 for a spacewalk to install a roll-out solar array on the station's port-side truss. Delaney trained to command the Canadarm2 arm during that work, which is planned to last six hours and 45 minutes.

Sergey Teteryatnikov practiced operating the European robotic arm on the Nauka module and set up Earth observation gear to capture Asian and South American landmarks in visible and near-infrared wavelengths during the crew's sleep shift. Anna Kikina photographed lakes in eastern Africa through a Zvezda window, and station commander Pyotr Dubrov handled orbital plumbing in Zvezda before photographing his crew at work.