<ul><li>Astronauts aboard the International Space Station (ISS) are conducting various scientific investigations to understand the effects of long-duration spaceflight on their health.</li><li>Two NASA astronauts, Nichole Ayers and Anne McClain, are participating in the CIPHER investigation to study how microgravity affects eye structure and vision. They conducted medical imaging tests and collected data on retinal response to light.</li><li>NASA Flight Engineer Don Pettit collected and processed blood, saliva, and urine samples to be stored for future analysis. He also underwent a vision test to monitor his visual acuity as part of routine health check-ups.</li><li>Other activities on the ISS included biomedical studies by Flight Engineer Takuya Onishi, circulatory system studies by Station Commander Alexey Ovchinin and Flight Engineer Ivan Vagner, and replacement of life support gear by Flight Engineer Kirill Peskov.</li></ul>

Science-Packed Day Advancing Crew Health Before Cargo Mission Ends

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