<ul><li>Expedition 73 crew at the International Space Station (ISS) studied life science, eye structure, and cellular immunity on Wednesday.</li><li>Ongoing space biology investigations on the ISS provide valuable data for understanding astronauts' adaptation to weightlessness and ensuring crew health on longer space missions.</li><li>NASA Flight Engineers conducted tests on eye responses to light stimuli, collected urine samples for analysis, and performed maintenance tasks on exercise gear and hardware components.</li><li>Other activities included studying cellular immunity, servicing equipment like the COLBERT treadmill, Earth observations, and training on the European robotic arm (ERA) attached to the Nauka science module.</li></ul>

Vision, Immune System Studies and Hardware Inspections Keep Crew Busy

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