The Expedition 65 crew spent Tuesday on a variety of biology experiments exploring how living in microgravity affects the human muscle system. The residents aboard the International Space Station are also intensifying their preparations for three spacewalks over the coming weeks.
Astronauts Megan McArthur of NASA and Thomas Pesquet of ESA (European Space Agency) split the day working on the Cardinal Muscle study in Japan’s Kibo laboratory module. McArthur started the morning setting up engineered muscle cell samples in the Life Sciences Glovebox for observation. Pesquet took over in the afternoon continuing the sample work to learn how to treat space-caused muscle loss and Earth-bound muscle conditions.
Pesquet and Commandeer Akihiko Hoshide from the Japan Aerospace Exploration Agency (JAXA) started their morning research duties on another pair of muscle investigations. For the Anti-Atrophy investigation, Pesquet installed cell samples into Kibo’s Cell Biology Experiment Facility to test biomaterials that may prevent muscle loss in space as well as on Earth. Hoshide, also working inside Kibo, inserted cell samples into a specialized microscope to observe how they adapt to weightlessness for the Cell Gravisensing muscle atrophy study.
Hoshide then spent the rest of Tuesday with NASA Flight Engineer Mark Vande Hei getting ready for their first spacewalk together set for next week. They started configuring the U.S. Quest airlock and checking components on their U.S. spacesuits. McArthur joined them afterward and helped the duo suit up for a fit verification. Hoshide and Vande Hei will exit Quest on Aug. 24 to prepare the Port-4 truss structure for future Roll-Out Solar Array installation work.
Flight Engineers Oleg Novitskiy and Pyotr Dubrov are getting ready for two of their own spacewalks targeted for early September. They began collecting their spacewalk tools located in the station’s Russian segment and photographed them for inspection today. The cosmonaut duo from Roscosmos will exit the Poisk module for both excursions and outfit the Nauka Multipurpose Laboratory Module for science operations.