Expedition 73 Flight Engineer Jonny Kim and Axiom Mission 4 Commander Peggy Whitson

iss073e0252485 (June 28, 2025) --- Expedition 73 Flight Engineer Jonny Kim from NASA and Axiom Mission 4 Commander Peggy Whitson work together inside the International Space Station's Destiny laboratory module setting up research hardware to culture patient-derived cancer cells, model their growth in microgravity, and test a state-of-the-art fluorescence microscope. Results may lead to earlier cancer detection methods, development of advanced cancer treatments, and promote future stem cell research in space.