Afterward, Hoshide swabbed and collected microbe samples from station surfaces for incubation and analysis back on Earth. Pesquet also collected microbe samples from the station’s atmosphere for observation on petri dishes.
NASA Flight Engineers Mark Vande Hei and Megan McArthur both relaxed on Monday morning having assisted spacewalkers Hoshide and Pesquet throughout the day on Sunday. Vande Hei then moved on and swapped and cleaned components for the ACE-T-11 physics study that is exploring space manufacturing techniques. McArthur replaced fuel bottles inside the Combustion Integrated Rack and later cleaned up debris in the orbiting lab’s Plant Habitat housing Hatch Green chiles growing for the Plant Habitat-04 space crop experiment.
International Astronauts Complete Power System Mods Spacewalk
Astronauts Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) and Thomas Pesquet of ESA (European Space Agency) have concluded the first spacewalk conducted by two international partner astronauts out of the International Space Station’s Quest airlock at 3:09 p.m. EDT, after 6 hours and 54 minutes.
Hoshide and Pesquet successfully assembled and attached a support bracket in preparation for future installation of the orbiting laboratory’s third new solar array. NASA is augmenting six of the eight existing power channels of the space station with new solar arrays to ensure a sufficient power supply is maintained for NASA’s exploration technology demonstrations for Artemis and beyond as well as utilization and commercialization.
The crew also replaced a device that measures the electrical charging potential of the arrays and associated surfaces in its vicinity, called a floating point measurement unit, on a separate truss section. The new device was powered on successfully.
This was the fourth spacewalk for Hoshide, the sixth for Pesquet, and the 12th spacewalk this year. Hoshide has now spent a total of 28 hours and 17 minutes spacewalking, and Pesquet’s total spacewalking time is 39 hours and 54 minutes. Space station crew members have now spent a total of 64 days, 5 hours, and 54 minutes working outside the station conducting 244 spacewalks in support of assembly and maintenance of the orbiting laboratory.
In November 2020, the International Space Station surpassed its 20-year milestone of continuous human presence, providing opportunities for unique research and technological demonstrations that help prepare for long-duration missions to the Moon and Mars and also improve life on Earth. In that time, 244 people from 19 countries have visited the orbiting laboratory that has hosted nearly 3,000 research investigations from researchers in 108 countries and areas.
Hoshide is extravehicular crew member 1 (EV 1), wearing a spacesuit bearing red stripes and using helmet camera #22. Pesquet is extravehicular crew member 2 (EV 2), wearing the unmarked spacesuit and helmet camera #20.
The spacewalkers will begin by working together to build the upper bracket of the modification kit then installing first the left strut followed by the right strut to the mast canister, the base, of one of the solar arrays on the port side of the station’s backbone truss structure. The support bracket will enable future installation of a third of six new International Space Station Roll-Out Solar Arrays (iROSAs) to upgrade one of the station’s eight power channels. Known as 4A, the channel provides partial power to the U.S. Laboratory, the Harmony module, and the Columbus module.
This is the fourth spacewalk for Hoshide, the sixth spacewalk for Pesquet, and the station’s 244thspacewalk in support of assembly, maintenance, and upgrades.
NASA TV Coverage Begins for Power System Mods Spacewalk
NASA Television coverage of today’s spacewalk with astronauts Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) and Thomas Pesquet of ESA (European Space Agency) is now underway and is also available on the NASA app and the agency’s website.
The crew members of Expedition 65 are preparing to go outside the International Space Station for a spacewalk scheduled to begin at approximately 8:30 a.m. EDT and last about six and a half hours. They are ahead of schedule.
The crew is in their spacesuits in the airlock in preparation to exit the space station and begin today’s activities that will focus on attaching a support bracket in preparation for future installation of the orbiting laboratory’s third new solar array. NASA astronauts Megan McArthur and Mark Vande Hei are assisting Hoshide and Pesquet in preparations before they exit the station.
Hoshide and Pesquet will work on the port side of the station’s backbone truss structure closest to the station’s pressurized living space, a position known as P4. They will work together to build a bracket structure and attach the bracket and support struts to the mast canister, the base, of one of the P4 solar arrays. The modification kit will prepare the site for future installation and deployment of the third of six new International Space Station Roll-Out Solar Arrays (iROSAs).
The crew also will replace a device that measures the electrical charging potential of the arrays and associated surfaces in its vicinity, called a floating point measurement unit, on a separate truss section.
Leading the mission control team today is Flight Director Adi Boulos with support from Sandy Moore as the lead spacewalk officer and NASA astronaut Jessica Watkins acting as the capsule communicator, or CAPCOM, to the crew.
Station Busy with Sunday Spacewalk Preps and Biology, Botany Research
Two Expedition 65 astronauts are getting ready for a Sunday spacewalk to modify the International Space Station’s power system. Meanwhile, the orbiting lab is hosting a variety of biology and botany research today as two cosmonauts clean up following Thursday’s spacewalk.
International astronauts Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) and Thomas Pesquet of ESA (European Space Agency) are preparing for a six-and-a-half hour spacewalk on Sunday. They will set their U.S. spacesuits to battery power at 8:30 a.m. EDT, exit the station’s U.S. Quest airlock, then translate to the Port-4 (P4) truss structure to install a modification kit. This will ready the P4 for a new Roll-Out Solar Array set to be delivered on a SpaceX Cargo Dragon mission next year. NASA TV will begin its live spacewalk coverage at 7 a.m. on the NASA app and the agency’s website.
NASA Flight Engineers Shane Kimbrough and Megan McArthur worked on two different space botany experiments today helping mission planners and doctors learn to sustain crews on longer space missions farther away from Earth. Kimbrough harvested plants growing on petri plates for the APEX-08 genetic expression study. McArthur cleaned up debris in the Kibo lab’s Plant Habitat that is growing Hatch Green chiles for the Plant Habitat-04 space crop experiment.
NASA Flight Engineer Mark Vande Hei replaced components inside the Combustion Integrated Rack then relocated a detection device that studies the radiation spectrum onboard the station. Vande Hei also partnered with Hoshide and Pesquet assisting the duo with their spacewalk preparations.