Crew Works Exercise Research and Lab Maintenance on Light Duty Day

On Friday, the Expedition 75 crew aboard the International Space Station engaged in light duty activities such as microgravity exercise studies, cargo transfers, Earth observations, hardware inventory, and life support maintenance. Blood samples were collected by NASA flight engineers Jack Hathaway and Sophie Adenot in the Columbus laboratory module for analysis of electrical muscle stimulation techniques to prevent space-induced muscle loss. They processed and preserved the samples in a science freezer for later Earth-based examination.

NASA's Jessica Meir and Anil Menon, the station commander and flight engineer respectively, alternated tasks transferring cargo in and out of the Northrop Grumman Cygnus XL cargo spacecraft. They then evaluated the usability of the new European Enhanced Exploration Exercise Device (E4D) which was utilized by Adenot in a subsequent exercise session. Meir also documented her workout in the advanced resistive device for the Standard Measures investigation that monitors astronaut health and performance during spaceflights.

Meanwhile, Roscosmos flight engineers Pyotr Dubrov and Anna Kikina installed and activated Earth observation equipment to capture automatic photographs of islands and volcanoes in the Indian and Pacific Oceans. They also inspected and cleaned cargo stowage areas in the Zarya module. Dubrov tested Bluetooth hardware and USB connections while Kikina maintained the Zvezda service module's laptop computers and power systems.

Flight engineer Andrey Fedyaev concluded his day by taking inventory of laptop computers and their power systems in the Nauka science module, and concluded his duties by servicing orbital plumbing components.