NASA astronaut Zena Cardman processes bone stem cell samples

iss073e0605876 (Sept. 4, 2025) --- NASA astronaut and Expedition 73 Flight Engineer Zena Cardman processes bone stem cell samples inside the Kibo laboratory module’s Life Science Glovebox aboard the International Space Station. Cardman was helping researchers explore how microgravity affects bone tissue to safeguard a crew member’s skeletal system and possibly treat aging conditions and bone diseases on Earth.