Expedition 74 crew begins science operations and adjusts to life in space.

The four-person Expedition 74 team carried out vein scans, pharmaceutical sample work, and routine maintenance aboard the International Space Station while continuing familiarization with station systems.

Expedition 74 crew members are conducting science and adjusting to life aboard the International Space Station. They combined medical monitoring, laboratory work, and routine maintenance during their recent shifts. Activities included vein imaging, equipment servicing for pharmaceutical research, environmental checks, and emergency procedure practice. The tasks support ongoing research and help the new arrivals become familiar with station systems. Daily activities: - NASA Flight Engineers Jack Hathaway and Jessica Meir performed vein scans using Ultrasound 3 and Ultrasound 2 while doctors on Earth monitored cardiac and vascular measurements. - ESA astronaut Sophie Adenot serviced sample processing hardware used for pharmaceutical development and manufacturing research in microgravity. - Roscosmos cosmonaut Andrey Fedyaev wore acoustic sensors to record exhalation patterns for respiratory system studies in microgravity. - NASA Flight Engineer Chris Williams measured airflow in U.S. segment modules, inspected vents, trained on medical hardware including an automated external defibrillator, and participated in an emergency respirator drill with Roscosmos crewmates. - Sergey Kud-Sverchkov completed overnight near-ultraviolet imaging of the nighttime atmosphere, and Sergei Mikaev configured scientific data-processing hardware and carried out maintenance tasks. - Crew members also unpacked cargo delivered by Dragon and performed computer and ventilation maintenance in the Nauka and Zvezda modules. Summary: Expedition 74 is progressing through initial research, systems familiarization, and routine maintenance as the newer crewmembers adapt to weightlessness. The day’s work combined medical monitoring, laboratory hardware servicing, environmental measurements, and emergency preparedness training. The crew will continue research and station operations as they settle into their assigned duties.