The U.S. spacewalk outside the International Space Station originally planned for Tuesday, Aug. 24 with NASA astronaut Mark Vande Hei and JAXA (Japan Aerospace Exploration Agency) astronaut Akihiko Hoshide has been postponed due to a minor medical issue involving Vande Hei. This issue is not a medical emergency. The spacewalk is not time-sensitive and crew members are continuing to move forward with other station work and activities. Teams are assessing the next available opportunity to conduct the spacewalk following the SpaceX CRS-23 cargo resupply launch planned for Aug. 28 and upcoming Russian spacewalks. The preview briefing Aug. 23 is also being rescheduled and will be announced at a later date.
Weekend Starts with Spacewalk Preps and Space Science
Astronauts Mark Vande Hei and Akihiko Hoshide check their U.S. spacesuits to get ready for a spacewalk prepare the station for its third Roll-Out Solar Array.
The Expedition 65 crew is going into the weekend preparing for a spacewalk on Tuesday while juggling a variety of microgravity research.
Astronauts Mark Vande Hei of NASA and Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) are less than a week away from exiting the U.S. Quest airlock to prepare the International Space Station for its third Roll-Out Solar Array. The two spacewalkers have been gearing up all week checking their spacesuits, configuring their tools, and reviewing their procedures for the planned six-hour and 50-minute excursion.
They will set their U.S. spacesuits to battery power on Tuesday at 8:30 a.m. EDT signifying the start of their spacewalk with NASA TV, NASA app, and agency website coverage beginning at 7 a.m. NASA TV will also broadcast a briefing on Monday at 2 p.m. discussing Tuesday’s spacewalk activities.
The spacewalkers will be assisted by Flight Engineers Megan McArthur of NASA and Thomas Pesquet of ESA (European Space Agency). The pair joined Vande Hei and Hoshide today for more spacewalk reviews and a conference with experts on the ground.
Vande Hei, despite preparations for his fifth career spacewalk, also had time today for biology research taking microscopic photographs of engineered tissue samples for the Cardinal Muscle investigation. Observations may help doctors learn how to treat space-caused muscle loss and Earth-bound muscle conditions.
NASA Flight Engineer Shane Kimbrough spent his day on human research, physics and botany duties aboard the orbiting lab. First, he collected his urine samples and stowed them in a science freezer for later analysis as part of the Repository human research study. Following that, Kimbrough opened up the Combustion Integrated Rack and swapped fuel bottles to support research into flames and fuels in microgravity. Finally, the three-time space visitor cleaned up debris around the Plant Habitat Facility that is growing Hatch chiles for the Plant Habitat-04 experiment.
Robotics, Muscle Research During Ongoing Spacewalk Preps
Astronaut Megan McArthur works on a muscle study in the Kibo laboratory module as station Commander Akihiko Hoshide poses behind her.
The Astrobee robotic free-flyers were powered up aboard the International Space Station and cell samples were set up for human muscle research today. The Expedition 65 crew is also headlong into U.S. and Russian spacewalk preparations while working on a variety of other science experiments.
NASA Flight Engineer Megan McArthur started Thursday morning turning on the cube-shaped Astrobee robotic helpers located inside the Kibo laboratory module. The toaster-sized free-flyers were demonstrating autonomous and coordinated operations during the afternoon. The ReSWARM robotics study may inform future space assembly and satellite repair techniques.
Commander Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) was also working in Kibo servicing cell samples for the Anti-Atrophy muscle investigation. The samples are being incubated and observed in the Cell Biology Experiment Facility to learn how to prevent and treat space-caused muscle atrophy and Earth-bound muscle conditions.
Hoshide then joined NASA Flight Engineer Mark Vande Hei and checked their U.S. spacesuit components and emergency jet packs during the afternoon. They will exit the U.S. Quest airlock on Aug. 24 to install a modification kit on the Port-4 (P4) truss structure to get ready for upcoming Roll-Out Solar Array installation work.
Two Russian spacewalks are also on the docket for cosmonauts Oleg Novitskiy and Pyotr Dubrov in early September. The duo will exit the Poisk module‘s airlock for both excursions to get the Nauka Multipurpose Laboratory Module ready for science operations. Today, they studied the paths toward their external worksites on a computer then checked their Orlan spacesuits and spacewalk tools in Poisk.
Several other space investigations were also underway today to support space biology research. ESA (European Space Agency) Flight Engineer Thomas Pesquet worked in the Columbus laboratory module measuring sound levels and setting up hardware for the Eklosion botany study. NASA Flight Engineer Shane Kimbrough took a robotics test for the Behavioral Core Measurements human research experiment then checked samples for the Ring Sheared Drop fluid physics study.
Busy Day as U.S., Russian Crews Get Ready for Spacewalks
Spacewalker Thomas Pesquet is attached to the tip of the Canadarm2 robotic arm to install the station’s second new solar array on June 25, 2021.
All seven Expedition 65 crew members are gearing up three spacewalks the first of which is set to start next week. Two astronauts will go on the first spacewalk then two cosmonauts will conduct the second and third spacewalks. The other three crewmates will provide support to the spacewalkers.
The first spacewalk on Aug. 24 will see Commander Akihiko Hoshide and Flight Engineer Mark Vande Hei spend about six hours and 50 minutes setting up the Port-4 (P4) truss structure for future Roll-Out Solar Array installation work. They will install a modification kit on P4 that prepares the site for the third of six new solar arrays planned for the station.
Flight Engineers Megan McArthur and Thomas Pesquet reviewed their spacewalk support roles today including controlling the Canadarm2 robotic arm and helping the duo in and out of their U.S. spacesuits. Flight Engineer Shane Kimbrough also spent several hours Wednesday morning assembling the solar array modification kit that Hoshide and Vande Hei will install next week.
On the other side of the station in the Russian segment, cosmonauts Oleg Novitskiy and Pyotr Dubrov are preparing for two of their own spacewalks planned for early September. They are continuing to organize their spacewalk tools and equipment in the Poisk module‘s airlock. The duo will exit Poisk for both excursions and ready the Nauka Multipurpose Laboratory Module for science operations.
Astronaut Thomas Pesquet waves to the camera during a spacewalk to install Roll-Out Solar Arrays on June 25, 2021.
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.
