Research-Filled Day and Spacesuit Work Keeps Crew Busy

Astronauts Nicole Mann and Koichi Wakata are pictured at the robotics workstation that controls the Canadarm2 robotic arm from inside the space station's Destiny laboratory module.
Astronauts Nicole Mann and Koichi Wakata are pictured at the robotics workstation that controls the Canadarm2 robotic arm from inside the space station’s Destiny laboratory module.

Life science and space physics filled the research schedule on Tuesday for the four Expedition 68 astronauts aboard the International Space Station. The orbiting lab’s three cosmonauts spent the day servicing Orlan spacesuits while maintaining electronics and life support systems.

Following a day off on Monday, the space station’s four astronauts turned their attention to a multitude of space science activities. The dominant research themes on Tuesday were biology and fluid physics with scientists on the ground using the observations to improve life for humans living on and off the Earth.

NASA Flight Engineer Frank Rubio had his hands full on Tuesday with numerous science investigations requiring his attention. Rubio opened up the Fluids Integrated Rack in the morning to support the Flow Boiling and Condensation Experiment that may provide insights into improving thermal systems in microgravity. Afterward, Rubio analyzed water samples collected from the station’s Water Processing Assembly. Next, he stowed research samples into a science freezer before attaching a protective cover on a specialized microscope that observes the fundamental nature of cellular and tissue structures. Finally, Rubio activated an experiment that is studying how weightlessness affects genetic expression in microbes to understand bacterial adaptation and protect astronauts.

Astronauts Josh Cassada of NASA and Koichi Wakata of the Japan Aerospace Exploration Agency took turns nourishing biology samples for a study observing how bones heal in space. Cassada earlier filled water bags that will support the Plant Habitat on an upcoming botany experiment. Wakata began operations to conclude a series of student-designed experiments using NanoRacks commercial research hardware.

NASA Flight Engineer Nicole Mann spent Tuesday scrubbing cooling loops inside the Extravehicular Mobility Units (EMUs), or spacesuits, the Cassada and Rubio wore during a spacewalk on Dec. 3 to install a roll-out solar array. The next spacewalk planned for Cassada and Rubio is scheduled for Dec. 19 to install a second roll-out solar array on the station’s port-side truss structure.

Two cosmonauts continued replacing components inside a pair of Orlan spacesuits they will wear on a spacewalk planned before the end of the year. The next spacewalk for Commander Sergey Prokopyev and Flight Engineer Dmitri Petelin will see the duo relocate a radiator from the Rassvet module to the Nauka multipurpose laboratory module. Flight Engineer Anna Kikina was back on lab maintenance on Tuesday installing a variety of electronics hardware, connecting cables and working on an oxygen generator.


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

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Astronauts Take Day Off Following Spacewalk

The waxing gibbous Moon is pictured above Earth's horizon as the space station orbited 271 miles over southern Argentina.
The waxing gibbous Moon is pictured above Earth’s horizon as the space station orbited 271 miles over southern Argentina.

Four Expedition 68 crew members took Monday off following a busy weekend of spacewalk activities. The rest of the International Space Station crew focused on electronics, life support, and Orlan spacesuit maintenance.

NASA astronauts Josh Cassada and Frank Rubio are relaxing today following a spacewalk on Saturday that saw the successful installation of a roll-out solar array on the station’s Starboard-4 truss segment. The duo then spent Sunday cleaning up after the spacewalk in the Quest airlock and discussing the results of the excursion with specialists on the ground. Flight Engineers Nicole Mann of NASA and Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) also took Monday off having assisted the spacewalkers over the weekend.

The next spacewalk is planned later this month to relocate a radiator from the Rassvet module to the Nauka multipurpose laboratory module. Commander Sergey Prokopyev and Flight Engineer Dmitri Petelin are replacing pumps inside their Orlan spacesuits today as they prepare for that spacewalk.

Flight Engineer Anna Kikina spent the day servicing a variety of electronics and life support hardware aboard the orbiting lab. She replaced gear and reconfigured cables then worked on the Nauka module’s ventilation system.


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

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Spacewalkers Complete New Solar Array Installation on Station

NASA spacewalker Josh Cassada rides the Canadarm2 robotic arm carrying the roll-out solar array to its installation site on the Starboard-4 truss segment. Credit: NASA TV
NASA spacewalker Josh Cassada rides the Canadarm2 robotic arm carrying the roll-out solar array to its installation site on the Starboard-4 truss segment. Credit: NASA TV

Expedition 68 Flight Engineers Josh Cassada and Frank Rubio of NASA concluded their spacewalk at 2:21 p.m. EST after 7 hours and 5 minutes.

Cassada and Rubio completed their major objectives for today to install an International Space Station Roll-Out Solar Array (iROSA) and disconnect a cable to ensure the 1B channel can be reactivated. They also completed an additional task to release several bolts for the upcoming iROSA installation on the 4A power channel on the port truss.

It was the 256th spacewalk in support of space station assembly, upgrades and maintenance, and was the second spacewalk for both astronauts. Cassada and Rubio are in the midst of a planned six-month science mission living and working aboard the microgravity laboratory to advance scientific knowledge and demonstrate new technologies for future human and robotic exploration missions, including lunar missions through NASA’s Artemis program.

The next U.S. spacewalk is scheduled for Monday, Dec. 19, to install an iROSA on the 4A power channel on the port truss. This will be the fourth iROSAs out of a total six planned for installation. The iROSAs will increase power generation capability by up to 30%, increasing the station’s total available power from 160 kilowatts to up to 215 kilowatts.


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

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Spacewalkers Exit Station to Install Roll-Out Solar Array

Astronaut Josh Cassada is pictured during a spacewalk on Nov. 15, 2022, to ready the space station for future rollout solar array installation work.
Astronaut Josh Cassada is pictured during a spacewalk on Nov. 15, 2022, to ready the space station for future rollout solar array installation work.

Expedition 68 Flight Engineers Josh Cassada and Frank Rubio of NASA began a spacewalk at 7:16 a.m. EST to install an International Space Station Roll-Out Solar Array (iROSA) to augment power generation for the 3A power channel on the station’s starboard truss structure.

In addition to installing an iROSA, the spacewalkers will disconnect a cable to allow the 1B power channel to be reactivated after it was shut down due to a power trip in its electrical system. The disconnection of the cable will isolate the affected portion of the array and restore the channel to 75% of its normal operating capacity.

Cassada, designated extravehicular crew member 1 (EV1), is wearing a suit with red stripes. Rubio, designated extravehicular crewmember 2 (EV 2), is in an unmarked suit. Coverage of the spacewalk continues on NASA Television, the NASA app, and the agency’s website.


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

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Spacewalkers Exiting Station Soon Live on NASA TV

Astronauts (from left) Josh Cassada and Frank Rubio are pictured suited up in their spacesuits preparing for a spacewalk on Nov. 15, 2022.
Astronauts (from left) Josh Cassada and Frank Rubio are pictured suited up in their spacesuits preparing for a spacewalk on Nov. 15, 2022.

NASA Television coverage of today’s spacewalk with NASA astronauts Josh Cassada and Frank Rubio is now underway and is also available on the NASA app, the space station blog and the agency’s website.

The crew members of Expedition 68 are preparing to exit the International Space Station‘s Quest airlock for a spacewalk expected to begin about 7:25 a.m. EST and last approximately seven hours.

NASA astronauts Josh Cassada and Frank Rubio will exit the station’s Quest airlock to install an International Space Station Roll-Out Solar Array (iROSA) to augment power generation for the 3A power channel on the station’s starboard truss structure.

In addition to installing an iROSA, the spacewalkers will disconnect a cable to allow the 1B power channel to be reactivated after it was shut down due to a power trip in its electrical system. The disconnection of the cable will isolate the affected portion of the array and restore the channel to 75% of its normal operating capacity.

Cassada will serve as extravehicular crew member 1 (EV 1) and will wear a suit with red stripes. Rubio will serve as extravehicular crew member 2 (EV 2) and will wear the unmarked suit. The spacewalk will be the second for both Cassada and Rubio.


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

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Astronauts Conduct Health Checks, Research Day Before Spacewalk

The space station's fine-tuned robotic hand, also known as Dextre, is pictured attached to the U.S. Destiny laboratory module as the orbiting lab flew 270 miles above the southern Pacific Ocean.
The space station’s fine-tuned robotic hand, also known as Dextre, is pictured attached to the U.S. Destiny laboratory module as the orbiting lab flew 270 miles above the southern Pacific Ocean.

Two astronauts are preparing to exit the International Space Station on Saturday to install a new roll-out solar array. Their Expedition 68 crewmates assisted the duo on Friday while continuing an array of advanced space science and orbital lab maintenance.

NASA Flight Engineers Josh Cassada and Frank Rubio spent Friday checking their batteries, tools, and cameras they will use on a spacewalk scheduled to begin at 7:25 a.m. EST on Saturday. The duo will exit the Quest airlock in their Extravehicular Mobility Units (EMUs), or spacesuits, and translate over to the Starboard- 4 truss segment worksite for the seven-hour spacewalk. Once there, the spacewalkers will install the new roll-out-solar array, also known as an International Space Station Roll-Out Solar Array, or iROSA, augmenting the station’s power generation system.

Astronauts Nicole Mann of NASA and Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) reviewed today the steps they will need to assist Cassada and Rubio during Saturday’s spacewalk. The pair will assist the astronauts in and out of their EMUs, maneuver the Canadarm2 robotic arm, as well as monitor the spacewalkers during the excursion.

Mann kicked off Friday morning as crew medical officer and conducted a health examination on Cassada and Rubio which is standard the day before a spacewalk. Mann measured the astronauts’ vital signs including temperature, blood pressure, pulse, and respiratory rate.

Aside from assisting with spacewalk preparations, Wakata also had time for a variety of science activities at the end of the week. He started the morning inside the cupola photographing four different small satellites as they were deployed into Earth orbit from outside the Kibo laboratory module. The veteran space station resident then replaced components inside the TangoLab space research and development facility. Finally, Wakata took samples out of the BioLab incubator and photographed them for the Sutures in Space investigation that observes wound healing in microgravity.

Station Commander Sergey Prokopyev of Roscosmos tested 3-D printing in space before photographing station crew activities such as research, maintenance, and exercise. Flight Engineer Dmitri Petelin also participated in the crew photography session before servicing the Zvezda service module’s ventilation system. Flight Engineer Anna Kikina worked on Zvezda’s power supply system and photographed the interior condition of the Rassvet and Poisk modules.


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

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Astronauts Prepare to Grow Tomatoes, Get Ready for Spacewalk

Astronauts (from top) Frank Rubio and Josh Cassada work on a pair of Extravehicular Mobility Units (EMUs), or spacesuits, inside the space station's Quest airlock.
Astronauts (from top) Frank Rubio and Josh Cassada work on a pair of Extravehicular Mobility Units (EMUs), or spacesuits, inside the space station’s Quest airlock.

The Expedition 68 crew began installing a new space botany experiment today while gearing up for a spacewalk planned for this weekend. The orbital residents are also continuing their research into the nervous system, unpacking a U.S. cargo craft, and keeping up International Space Station systems.

NASA and its international partners have been learning how to grow fresh food on the orbiting lab for several years. Today, NASA Flight Engineer Nicole Mann began installing the new Veg-05 space agriculture study that will soon grow dwarf tomatoes with the astronauts testing fertilizer techniques, microbial food safety, nutritional value, and taste. Growing fresh food during future missions farther away from Earth may promote crew morale and reduce crew dependency on space cargo missions.

Veteran station astronaut Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) serviced microbe samples being observed for the Neural Integration System biotechnology experiment. Wakata fed the microbes inside the Cell Biology Experiment Facility, a specialized incubator with an artificial gravity generator, for the study that may provide insights into neuromuscular conditions such as Parkinson’s disease.

Mann and Wakata later joined NASA astronauts Josh Cassada and Frank Rubio and continued preparing for a spacewalk planned to start at 7:25 a.m. EST on Saturday. The quartet reviewed the steps Cassada and Rubio will use to install a roll-out solar array on the station’s Starboard- 4 truss segment during the seven-hour excursion. Mann and Wakata will be inside the station supporting the duo before, during, and after the spacewalk.

The roll-out-solar array, also known as an International Space Station Roll-Out Solar Array, or iROSA, was extracted from inside the SpaceX Dragon resupply ship’s unpressurized trunk by ground controllers remotely commanding the Canadarm2 robotic arm. The iROSA was then placed on a starboard truss structure attachment point. From there, the spacewalkers will retrieve the roll-out solar array on Saturday and install it on the starboard truss segment. The new iROSA is augmenting the space station’s power generation system.

The space station’s three cosmonauts spent Thursday servicing a variety of life support hardware and space station gear. Roscosmos Commander Sergey Prokopyev began the day checking cameras and their components before cleaning the Zvezda service module’s ventilation system. Flight Engineer Dmitri Petelin completed his 24-hour heart monitoring activity on Thursday morning then worked on Ethernet cable connections and orbital plumbing gear. Flight Engineer Anna Kikina spent the day maintaining an assortment of station systems and their components ensuring the orbiting lab operates in tip-top shape.


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

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