Crew Turns Attention to Research Following Trio of Spacewalks

Crew Turns Attention to Research Following Trio of Spacewalks

Astronaut Thomas Pesquet of ESA (European Space Agency) works on the Ring-Sheared Drop experiment inside the U.S. Destiny laboratory module's Microgravity Science Glovebox.
Astronaut Thomas Pesquet of ESA (European Space Agency) works on the Ring-Sheared Drop experiment inside the U.S. Destiny laboratory module’s Microgravity Science Glovebox.

The Expedition 65 crew is back on microgravity research aboard the International Space Station today after kicking off September with three spacewalks in less than two weeks.

International astronauts Akihiko Hoshide and Thomas Pesquet relaxed Monday morning following their six-hour and 54-minute spacewalk on Sunday to install a modification kit on the station’s Port-4 (P4) truss structure. The Commander from the Japan Aerospace Exploration Agency (JAXA) then joined the ESA (European Space Agency) Flight Engineer for standard health checks that take place after the strenuous spacewalks.

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.

Working throughout Monday inside the Kibo laboratory module, NASA Flight Engineer Shane Kimbrough began setting up hardware and trained for the newest rodent research experiment. Mice, delivered on the recent SpaceX Cargo Dragon mission, will soon be observed inside Kibo’s Life Science Glovebox to understand how microgravity affects the healing process.

Cosmonauts Oleg Novitskiy and Pyotr Dubrov continue cleaning up in the station’s Russian segment following their spacewalks on Sept. 3 and Sept. 9 to configure the Nauka multipurpose laboratory module for science operations. The duo from Roscosmos also had time for life support maintenance and cargo transfers from the Progress 78 resupply ship today.

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Norah Moran

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International Astronauts Complete Power System Mods Spacewalk

International Astronauts Complete Power System Mods Spacewalk

Spacewalker Akihiko Hoshide works on the station's Port-4 truss structure installing a modification kit and preparing it for a future Roll-Out Solar Array. Credit: NASA TV
Spacewalker Akihiko Hoshide works on the station’s Port-4 truss structure installing a modification kit and preparing it for a future Roll-Out Solar Array. Credit: NASA TV

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.

Learn more about station activities by following @space_station and @ISS_Research on Twitter as well as the ISS Facebook and ISS Instagram accounts.

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Mark Garcia

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International Astronauts Begin Spacewalk to Modify Station’s Power System

International Astronauts Begin Spacewalk to Modify Station’s Power System

Astronauts (from left) Akihiko Hoshide and Thomas Pesquet are pictured outside of the space station with their U.S. spacesuit helmet visors up during earlier spacewalks.
Astronauts (from left) Akihiko Hoshide and Thomas Pesquet are pictured outside of the space station with their U.S. spacesuit helmet visors up during earlier spacewalks.

Astronauts Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) and Thomas Pesquet of ESA (European Space Agency) have begun the first International Space Station spacewalk conducted by two international partner astronauts out of the station’s Quest airlock.

The spacewalkers switched their spacesuits to battery power at 8:15 a.m. EDT to begin the spacewalk, which is expected to last about six and a half hours.

Watch the spacewalk on NASA TV, the NASA app, and the agency’s website.

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 244th spacewalk in support of assembly, maintenance, and upgrades.

Learn more about station activities by following @space_station and @ISS_Research on Twitter as well as the ISS Facebook and ISS Instagram accounts.

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Mark Garcia

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NASA TV Coverage Begins for Power System Mods Spacewalk

NASA TV Coverage Begins for Power System Mods Spacewalk

Astronauts (from left) Akihiko Hoshide and Thomas Pesquet are pictured in their U.S. spacesuits preparing for earlier spacewalks.
Astronauts (from left) Akihiko Hoshide and Thomas Pesquet are pictured in their U.S. spacesuits preparing for earlier spacewalks.

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.

Learn more about station activities by following @space_station and @ISS_Research on Twitter as well as the ISS Facebook and ISS Instagram accounts.

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Mark Garcia

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Station Busy with Sunday Spacewalk Preps and Biology, Botany Research

Station Busy with Sunday Spacewalk Preps and Biology, Botany Research

ESA (European Space Agency) astronaut Thomas Pesquet is pictured during a spacewalk in January 2017 when he was an Expedition 50 flight engineer.
ESA (European Space Agency) astronaut Thomas Pesquet is pictured during a spacewalk in January 2017 when he was an Expedition 50 flight engineer.

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.

Hoshide and Pesquet still had plenty of time for microgravity research today as they gear up for Sunday’s excursion. The JAXA astronaut, who is on his third space mission, serviced mouse embryo samples in the Kibo laboratory module to learn how the space environment affects key phases of reproduction. ESA Flight Engineer Pesquet set up the Columbus laboratory module and explored how the human central nervous system adapts to weightlessness.

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.

Cosmonauts Oleg Novitskiy and Pyotr Dubrov slept in Friday morning following their seven-hour and 25-minute spacewalk on Thursday to connect data and communication cables to Russia’s Nauka multipurpose laboratory module. The duo from Roscosmos then began disconnecting components on their Orlan spacesuits and stowing spacewalk gear in the orbiting lab’s Russian segment.

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Mark Garcia

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