Expedition 75 crew members aboard the International Space Station carried out health research on Wednesday, September 23, 2026, including ultrasound scans guided by augmented reality and artificial intelligence, NASA reported. In the EchoFinder-2 study, NASA's Jessica Meir and ESA's Sophie Adenot took turns scanning each other with an Echo probe in the Columbus module while an ultrasound technician guided them remotely. NASA said results may let future crews use medical monitoring tools without ground-based doctors on missions farther from Earth.

NASA flight engineer Anil Menon processed his own blood samples for the Immunity Assay experiment in the Harmony module, spinning them in a centrifuge and storing them in a science freezer for later analysis of how space affects infection resistance. Jack Hathaway assisted and also collected samples from the Destiny module's water dispenser for microbial analysis back on Earth.

In that September account, NASA said Meir, Hathaway, Adenot and Roscosmos flight engineer Andrey Fedyaev, the Crew-12 quartet, had begun packing personal items for their Dragon return after Crew-13’s arrival, then expected no earlier than October 1, 2026. Fedyaev tested a lower-body negative pressure suit, and Anna Kikina collected saliva samples for immune-system research. Pyotr Dubrov continued unpacking supplies from the Progress 96 cargo spacecraft.