The seven-member Expedition 65 crew kicked off the workweek working on Japanese science gear, a U.S. immune system study, and spacewalk preparations.
Flight Engineers Mark Vande Hei and Thomas Pesquet joined station Commander Akihiko Hoshide for science maintenance in the Kibo laboratory module on Monday morning. The trio teamed up and installed an experiment platform in Kibo’s airlock, where it will soon be placed outside in the harsh environment of space.
Vande Hei then moved on and serviced donor cell samples for the Celestial Immunity study taking place inside the Kibo lab’s Life Sciences Glovebox (LSG). The experiment looks at cells launched to space and compares them to cell samples harvested on Earth to document the differences in weightlessness. Results could impact the development of new vaccines and drugs to treat diseases on Earth and advance the commercialization of space.
Pesquet later took photographs of U.S. spacesuit gloves for inspection ahead of two spacewalks planned for June. During those spacewalks, new solar arrays will be installed on the station’s Port 6 truss structure to augment the station’s power system. The first two of six new solar arrays will be delivered on the next SpaceX cargo mission planned for launch on June 3 from NASA’s Kennedy Space Center.
Hoshide checked power cables on the Confocal Space Microscope that provides fluorescence imagery of biological samples. Then he took turns with NASA Flight Engineer Shane Kimbrough, participating in a computerized cognitive assessment. Next, Kimbrough worked the rest of Monday in the Tranquility module’s Water Processing Assembly to repair a possible leak.
NASA Flight Engineer Megan McArthur opened up BEAM, or the Bigelow Expandable Activity Module, and organized cargo during the morning. She then powered down and stowed the LSG after Vande Hei concluded Monday’s immunity research.