Cargo Craft Packed for Departure, Crews Work Science and Spacesuits

The Canadarm2 robotic arm reaches out to capture Northrop Grumman's Cygnus space freighter on Feb. 1, 2024.
The Canadarm2 robotic arm reaches out to capture Northrop Grumman’s Cygnus space freighter on Feb. 1, 2024.

A U.S. cargo craft is being readied for its departure on Friday from the International Space Station after a five-and-a-half-month resupply mission. In the meantime, the nine orbital residents comprising the Expedition 71 and Starliner crews studied space biology and 3D printing while servicing a pair of spacesuits on Thursday.

Northrop Grumman’s Cygnus resupply ship will end its stay at the orbital outpost at 7 a.m. EDT on Friday. Robotics controllers will command the Canadarm2 robotic arm to remove Cygnus from the Unity module then release it into orbit where it will descend into the Earth’s atmosphere above the South Pacific.

Watch Cygnus’s departure live beginning at 6:30 a.m. Friday on the NASA+ streaming service via the web or the NASA app. Departure coverage also will air live on NASA Television, YouTube, and on the agency’s website. Learn how to stream NASA TV through a variety of platforms including social media.

NASA Flight Engineers Tracy C. Dyson and Matthew Dominick finished packing Cygnus with trash and obsolete gear on Thursday. Afterward, the duo exited Cygnus, closed the hatch, and prepared the spacecraft for its depressurization and separation early Friday. Cygnus arrived at the orbital outpost on Feb. 1 replenishing the crew with over 8,200 pounds of science experiments and crew supplies.

Advanced biology research also was underway aboard the orbiting lab on Thursday with a pair of astronauts exploring how living in space affects the human body and mind. NASA Flight Engineer Mike Barratt started his day drawing his blood samples and stowing them in a science freezer for future analysis. Next, he took a cognition test measuring space-caused changes in brain structure and function. NASA astronaut and Boeing Starliner Pilot Suni Williams extracted DNA to identify microbe samples collected from station water systems. Results from the genetic biotechnology experiment may improve ways to keep crews healthy and spacecraft systems clean on future missions.

Barratt also assisted Starliner Commander Butch Wilmore from NASA who spent all day servicing a pair of spacesuits in the Quest airlock. The duo cleaned the suits’ cooling loops and checked the communication systems ahead of a spacewalk planned for July 29.

NASA Flight Engineer Jeanette Epps worked Thursday morning in the Kibo laboratory module replacing carbon dioxide bottles that supply payload racks inside Kibo. During the afternoon, Epps worked inside the Tranquility module replacing life support components and servicing orbital plumbing gear.

Working from the Roscosmos segment of the orbital outpost, cosmonaut Nikolai Chub started the morning studying ways future crews might pilot spacecraft and robots on planetary missions. In the afternoon, Chub powered on the Nauka science module’s 3D printer and continued testing its ability to manufacture space hardware on demand. Flight Engineer Alexander Grebenkin worked throughout the day on orbital plumbing while Commander Oleg Kononenko deconfigured scientific gear to access Zvezda service module panels for maintenance and cleaning.

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

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Crews Speak to Managers and News Media, Keep Up Advanced Research

NASA's Boeing Crew Flight Test astronauts Suni Williams and Butch Wilmore are pictured during a space-to-ground conference with journalists on Earth. Credit: NASA TV
NASA’s Boeing Crew Flight Test astronauts Suni Williams and Butch Wilmore are pictured during a space-to-ground conference with journalists on Earth. Credit: NASA TV

All nine astronauts and cosmonauts aboard the International Space Station practiced responding to a simulated emergency on Wednesday. Earlier, the orbital residents split their day researching blood pressure, remote robotics, and 3D printing.

The seven-member Expedition 71 crew joined the two Boeing Crew Flight Test and practiced an emergency drill in collaboration with mission controllers. The teams aboard the orbital outpost and on the ground coordinated communications and reviewed procedures in the unlikely event of a pressure leak, chemical leak, or a fire aboard the space station.

At the beginning of the day, NASA Flight Engineers Tracy C. Dyson and Mike Barratt worked on a pair of human research experiments to understand how the human body adapts to the lack of gravity. Dyson powered up research hardware to measure her brain blood flow for the Cerebral Autoregulation investigation. Barratt collected and stowed his urine samples in a science freezer for the CIPHER study. The space biology experiment looks at a broad set of long-term biological and psychological data collected from astronauts to promote health and well-being on space missions.

NASA astronaut Jeanette Epps spent most of her day in the Columbus laboratory module exploring ways to control a robot on the ground from a spacecraft. Epps coordinated with robotics engineers on Earth remotely manipulating a robot using a computer interface while testing its ergonomic features and haptic feedback for conditions such as wind and gravity. Results may inform future exploration missions to the Moon, Mars, and beyond.

NASA Flight Engineer Matthew Dominick performed a video inspection of components on the Inter-Orbit Communications System (ICS) rack located in the Kibo laboratory module. The ICS enables data to be uplinked to the orbital outpost and downlinked to mission controllers using JAXA’s (Japan Aerospace Exploration Agency) Data Relay Test Satellite.

NASA astronauts Butch Wilmore and Suni Williams, representing Boeing’s Crew Flight Test, spoke to reporters today from the space station answering questions about their mission and the Starliner vehicle. NASA and Boeing managers also discussed the Crew Flight Test mission with the media in an audio teleconference afterward. Watch the crew news conference here and listen to the media briefing here. The duo earlier completed life support work refilling temperature loops with water in the Tranquility module’s internal thermal control system.

Working in the space station’s Roscosmos segment, Flight Engineer Nikolai Chub activated a 3D printer in the Nauka science module and tested its operations and ability to manufacture hardware on demand in space. Flight Engineer Alexander Grebenkin’s day was filled mostly with household duties such as checking carbon dioxide monitors, synchronizing cameras with station clocks, and downloading scientific data to a laptop computer. Station Commander Oleg Kononenko started his day speaking to science, technology, and education professionals near Moscow. Afterward, he jogged on a treadmill while attached to sensors for a physical fitness test.

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

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Space Biology, Spacesuits, and Dragon Training Top Day for Astronauts, Cosmonauts

NASA astronaut and Expedition 71 Flight Engineer Mike Barratt works on spacewalking hardware aboard the International Space Station's Unity module.
NASA astronaut and Expedition 71 Flight Engineer Mike Barratt works on spacewalking hardware aboard the International Space Station’s Unity module.

Life science and docked spacecraft training were the prime tasks aboard the International Space Station on Tuesday. The nine orbital residents also split their day on a variety of maintenance tasks including spacesuit work and orbital plumbing.

NASA astronauts Tracy C. Dyson and Matthew Dominick kicked off their day collecting biological samples and data to understand how living in weightlessness affects the human body. Dyson first processed her saliva samples and stowed them in a science freezer for later analysis. She then attached an acoustic monitor near her ear to measure station noise levels a crew member experiences in a 24-hour period. Dominick removed brain wave sensors from his ears that recorded his sleep patterns then he filled out a questionnaire documenting his sleep quality.

Dyson also worked in the Columbus laboratory module and studied the ability to remotely control robots on a planetary surface from a spacecraft for the Surface Avatar experiment. Dominick spent the afternoon in the Tranquility module checking the performance of components on the waste and hygiene compartment, the orbital outpost’s bathroom.

NASA Flight Engineer Jeanette Epps photographed Dyson during her robotics experiment. She then spent the afternoon reconfiguring life support gear before removing batteries from spacesuits at the end of the day. NASA Flight Engineer Mike Barratt started his day inspecting spacesuit safety jetpacks that would be used to maneuver safely back to the station in the unlikely event a spacewalker became untethered from the orbital lab.

Epps and Barratt also joined Dominick and Roscosmos Flight Engineer Alexander Grebenkin midday and reviewed standard SpaceX Dragon Endeavour spacecraft emergency undocking procedures. The SpaceX Crew-8 quartet docked to the station on March 5 and is due to return to Earth aboard Endeavour in late August.

NASA astronauts Butch Wilmore and Suni Williams, representing Boeing’s Crew Flight Test, took turns during the morning pedaling on an exercise cycle while attached to heart and breathing sensors that measured their aerobic capacity. The duo then split up as Wilmore serviced a pair of research freezers that preserve scientific samples and Williams installed hardware on an experiment that is exploring atmospheric reentry and thermal protection systems.

The Roscosmos segment’s three cosmonauts including Grebenkin had their day packed with continuing space research and laboratory upkeep duties. Expedition 71 Commander Oleg Kononenko spent the morning working on ventilation systems in the Nauka science module then completed his day studying futuristic spacecraft and robotic piloting techniques. Flight Engineer Nikolai Chub replaced life support gear in the Zarya module then joined Grebenkin for a photographic inspection of panels inside the Zvezda service module. Grebenkin earlier jogged on a treadmill for a regularly scheduled physical fitness test.

NASA’s Johnson Space Center remained closed to all but essential personnel today following Hurricane Beryl’s landfall near Matagorda, Texas. Mission Control  continues to support International Space Station and NASA’s Boeing Crew Flight Test mission.  If employees feel safe to do so, the center will be open for on-site work beginning Wednesday.

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

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Robotics, Cargo Ops, and Health Research to Kick Start Week

Northrop Grumman's Cygnus space freighter, attached to the Unity module, is pictured firing its single engine boosting the International Space Station's orbital altitude. This long-duration photograph also shows an atmospheric glow hovering above Earth's horizon.
Northrop Grumman’s Cygnus space freighter, attached to the Unity module, is pictured firing its single engine boosting the International Space Station’s orbital altitude. This long-duration photograph also shows an atmospheric glow hovering above Earth’s horizon.

A full day of robotics and cargo ops kept the Expedition 71 and Boeing Crew Flight Test crews busy on Monday as the nine orbital residents kick off a week of maintenance and science aboard the International Space Station. The crew also scheduled in some time for human health research and physical science activities.

NASA astronauts Tracy C. Dyson, Jeanette Epps, Matthew Dominick, and Mike Barratt all completed a round of robotics training throughout the day ahead of the departure of Northrop Grumman’s Cygnus space freighter. The quartet practiced capturing a cargo craft and trained to operate the Canadarm2 robotic arm.

Cygnus, which was captured by the robotic arm on Feb. 1, will be released by robotics controllers later this month for disposal over the South Pacific Ocean, ending its five-and-a-half-month mission at the orbital lab. Along with training, Dominick and Epps spent part of the day loading trash and discarded gear inside the spacecraft.

Epps also processed and separated Hicari samples in the Kibo Laboratory for future return to Earth. Hicari, an experiment led by JAXA (Japanese Aerospace Exploration Agency), investigates high-quality crystal growth of semiconductors. Later on, she inventoried emergency equipment, including the fire extinguisher, masks, and air supply tanks.

Meanwhile, research to assess psychological and physiological responses to microgravity was underway in the Destiny module. Dyson collected biological samples for the Standard Measures investigation, then stowed them in MELFI, the orbital lab’s ultra-cold freezer, for future analysis.

Starliner Commander Butch Wilmore and Pilot Suni Williams worked together to review use procedures for the Fluid Systems Servicer, which drains, purges, and circulates fluids on systems aboard the space station. Wilmore then refilled coolant loops in the water pump assembly located in the Columbus module.

Cargo ops, robotics activities, and health research also occupied the three cosmonauts’ schedules on Monday. In the morning, Flight Engineer Alexander Grebenkin donned a device that captures blood pressure measurements to study how the cardiovascular system adapts to microgravity. He then practiced his piloting techniques during a Pilot-T session. Current station Commander Oleg Kononenko loaded trash and discarded gear inside Progress 87, which is slated to undock from the station in August. He later joined by Flight Engineer Nikolai Chub to inspect and photograph windowpanes to assess their condition for future maintenance.

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

Get weekly updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Maintenance Tasks Continue Into Friday for Crew

The International Space Station was orbiting above Africa at night when this long duration photograph was taken of city lights along the the Nile River, the atmospheric glow above the Earth, and star trails.
The International Space Station was orbiting above Africa at night when this long duration photograph was taken of city lights along the the Nile River, the atmospheric glow above the Earth, and star trails.

Orbital maintenance and upkeep occupied Friday’s schedule aboard the International Space Station as the two crews went back to work following a day off on Thursday to observe the Independence Day holiday.

In preparation for the future installation of new exercise equipment, Expedition 71 Flight Engineer Matthew Dominick and Boeing Crew Flight Test Commander Butch Wilmore and Pilot Suni Williams worked together throughout the day inside the Columbus module to swap out an empty rack that previously housed retired exercise gear.

Afterward, Dominick and Williams moved into the Tranquility module to reinstall the toilet system after the pressure control pump motor was replaced on Wednesday. Meanwhile, NASA astronaut Mike Barratt focused on additional orbital plumbing tasks, including a fluid transfer from the wastewater processing system and a manual fill of the water recovery system.

In the Kibo Laboratory, NASA astronaut Jeanette Epps spent a majority of the day recording a video survey of hardware that enables data communications between space and Earth. The video was then downlinked to ground teams for analysis. After lunch, Epps analyzed water samples that were collected on Wednesday to assess for microbial growth.

NASA astronaut Tracy C. Dyson kicked off her day by loading new software onto the Surface Avatar program which allows crew members to remotely control robots on Earth and investigate how haptic controls, user interfaces, and virtual reality could command surface-bound robots from long distances. Dyson was then joined by cosmonauts Oleg Kononenko and Nikolai Chub to complete on-orbit emergency training.

Kononenko and Chub also completed hearing assessments on Friday, then loaded trash and discarded gear inside Progress 87, which is slated to undock from the orbiting laboratory in mid-August. Their crewmate, Alexander Grebenkin, worked maintenance on the water recovery system then completed some computer work in the Nauka module.

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

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Crew Observes Earth’s Nighttime Atmosphere, Conducts Station Maintenance

While orbiting nearly 260 miles above the North Pacific Ocean, the International Space Station soars from orbital nighttime into orbital daytime.
While orbiting nearly 260 miles above the North Pacific Ocean, the International Space Station soars from orbital nighttime into orbital daytime.

The Expedition 71 and Boeing Crew Flight Test crews had a light duty day on Wednesday, focusing on Earth observations and station upkeep.

While soaring 250 miles above our home planet, the International Space Station passes into orbital nighttime roughly every 45 minutes. During these night periods, crew members can observe events in Earth’s atmosphere that are otherwise difficult to capture during daylight. In the morning, NASA astronaut Jeanette Epps entered the cupola to set up equipment for the Thor-Davis investigation. She then used the high-speed Davis Camera to observe and capture thunderstorms in Earth’s upper atmosphere. The camera, specially designed to track electrical activity at up to 100,000 frames per second, could be used during future missions to record processes in severe electrical storms.

In the Japanese Experiment Module, NASA astronaut Tracy C. Dyson spent most of the morning relocating the Internal Ball Camera before reactivating the hardware at its new docking station. Afterward, she audited emergency medical kits and hardware.

NASA astronaut Matthew Dominick spent most of the day in the Tranquility module to remove and replace a ventilation fan, while his crewmate, Mike Barratt, worked in the Columbus module to clear out hardware and stowage in preparation for the future installation of new exercise equipment.

Starliner Commander Butch Wilmore and Pilot Suni Williams teamed up on Wednesday to continue work on the wastewater processing system, removing and replacing a failed pressure control pump motor.

In the Roscosmos segment, Commander Oleg Kononenko and Flight Engineer Nikolai Chub began the day prepping and donning a watch that will record their movement, physical activity, and sleep over the next 36 hours. The duo then prepped for some routine flight simulation training while their crewmate, Alexander Grebenkin, observed Earth’s nighttime atmosphere in near-ultraviolet.

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

Get weekly updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Routine Health Assessments and Cargo Ops Top Tuesday’s Schedule

NASA astronaut Jeanette Epps smiles for a portrait aboard the International Space Station's Columbus laboratory module.
NASA astronaut Jeanette Epps smiles for a portrait aboard the International Space Station’s Columbus laboratory module.

Hearing assessments, eye exams, and cargo ops topped Tuesday’s schedule aboard the International Space Station. The Expedition 71 and Boeing Crew Flight Test crews also scheduled in some time to connect with students back on Earth and prepare for upcoming mission activities.

As part of regularly scheduled exams in low Earth orbit, NASA astronauts Matthew Dominick, Mike Barratt, Jeanette Epps, and Tracy C. Dyson all completed hearing assessments throughout the day. Epps prepped for upcoming Thor-Davis activities—an investigation that observes thunderstorms in Earth’s upper atmosphere—and reconfigured the EarthKam for future operations.

Dominick connected with students from St. Luke’s College in Buenos Aires, Argentina, during an Amateur Radio call, giving them an opportunity to ask questions about living and working in microgravity as the space station orbited overhead.

Barratt and Dyson teamed up in the afternoon to deconfigure spacesuit components after a water leak in Dyson’s service and cooling umbilical unit forced an early end to a spacewalk on Monday, June 24. The next spacewalk outside of the orbiting laboratory, with Dyson and Barratt, is scheduled for July 29.

Later in the evening, Barratt received an eye exam, guided by Epps, to help researchers better understand how microgravity affects vision. Meanwhile, Dyson was joined by Crew Flight Test Commander Butch Wilmore to load trash and discarded gear inside Northrop Grumman’s Cygnus spacecraft. Cygnus is scheduled to be released from the Unity module later this month for disposal over the South Pacific Ocean, ending its five-and-a-half month stay at the orbiting lab.

Crew Flight Test Pilot Suni Williams spent a majority of the day on Starliner operations then assessed the air flow of the pump filter attached to the Advanced Plant Habitat. At the end of the day, Williams was joined by all eight of her crewmates for a conference with ground teams.

All three cosmonauts in microgravity donned acoustic monitors throughout the day to capture sound measurements around the station. In the Zvezda Service Module, Flight Engineer Nikolai Chub tested a 3D printer to assess its ability to manufacture space hardware, then later inspected and photographed panels and cable routes of a Roscosmos physics experiment that examines neutron radiation.

Flight Engineer Alexander Grebenkin continued hose replacement work on the water processing system, then studied the glow of Earth’s nighttime atmosphere in near-ultraviolet. Meanwhile, Commander Oleg Kononenko began loading trash and discarded gear inside Progress 87, which is slated to undock from the orbiting laboratory in August.

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

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Station Orbiting Higher; Routine Upkeep for Crew

NASA's Boeing Crew Flight Test astronauts (from top) Butch Wilmore and Suni Williams pose for a portrait inside the vestibule between the forward port on the International Space Station's Harmony module and Boeing's Starliner spacecraft.
NASA’s Boeing Crew Flight Test astronauts (from top) Butch Wilmore and Suni Williams pose for a portrait inside the vestibule between the forward port on the International Space Station’s Harmony module and Boeing’s Starliner spacecraft.

A jam-packed day of orbital upkeep kept the International Space Station residents busy on Monday. The Expedition 71 and Boeing Crew Flight Test crews worked an array of maintenance and cleaning tasks after taking a weekend off.

NASA astronauts Tracy C. Dyson and Matthew Dominick kicked off the day by loading trash and discarded gear inside Northrop Grumman’s Cygnus spacecraft, which will be released from the Unity module by robotics ground controllers this month for disposal over the South Pacific Ocean. Later in the afternoon, the duo was joined by NASA astronauts Jeanette Epps and Mike Barratt to organize and relocate station gear and dispose of trash in portions of the orbital outpost.

Earlier, Epps conducted an Amateur Radio session with students from the Moroccan School of Engineering Sciences in Casablanca, Morocco. Afterward, she and Barratt worked inside the Destiny module to clean portions of the air duct system and replace fasteners on some of the panels that house the duct work. Barratt then moved on to inspect and photograph headset extension cables and audio gear for ground teams to analyze.

Starliner’s Commander and Pilot, Butch Wilmore and Suni Williams, spent the morning in the Permanent Multipurpose Module, organizing stowage and tidying up. Wilmore then moved into the Japanese Experiment Module to disassemble an empty NanoRacks CubeSat Deployer in preparation of upcoming NanoRacks missions.

Later on, Wilmore prepped and viewed samples for Moon Microscope, a demonstration that allows flight surgeons on Earth to diagnose illnesses and could provide diagnostic capabilities for crews on future missions to the Moon and Mars. Meanwhile, Williams conducted some routine orbital plumbing, then audited U.S. stowage items housed inside the Zarya module.

The next spacewalk outside the orbiting complex is scheduled for July 29 with Dyson and Barratt. This change allows teams on the ground to continue to troubleshoot and understand the water leak in the service and cooling umbilical unit that forced an early end to a spacewalk on Monday, June 24.

In the Roscosmos segment, three cosmonauts continued orbital upkeep tasks. Commander Oleg Kononenko and Flight Engineer Nikolai Chub teamed up to inventory headsets and audio equipment crews use to talk with ground teams. Afterward, Chub completed some routine cleaning in the Zvezda Service Module. Flight Engineer Alexander Grebenkin replaced a few hoses on the Roscosmos water processing system, then charged the tablets the crew uses to complete and track daily tasks.

The space station is orbiting a bit higher today after the Progress 87 cargo craft fired its thrusters for 9 minutes and 10 seconds on Saturday, June 29. This orbital reboost sets up the correct phasing for the launch and rendezvous of Progress 89 slated for arrival mid-August.

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

Get weekly updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Crews Wrap Week; Managers Provide Starliner, Spacewalk, and Cargo Updates

The Starliner spacecraft on NASA's Boeing Crew Flight Test approaches the International Space Station while orbiting 263 miles above Quebec, Canada, on June 6.
The Starliner spacecraft on NASA’s Boeing Crew Flight Test approaches the International Space Station while orbiting 263 miles above Quebec, Canada, on June 6.

The Expedition 71 crew members packed a U.S. cargo craft, cleaned up the International Space Station, studied futuristic piloting techniques, and conducted eye exams on Friday. NASA’s Boeing Crew Flight Test astronauts spent the end of their workweek reconfiguring a space botany facility.

Robotics controllers are scheduled to detach the Cygnus space freighter from the Unity module on July 12 and release it into Earth orbit for disposal over the South Pacific Ocean ending a five-and-a-half-month mission at the orbital lab. NASA Flight Engineer Matthew Dominick spent most of Friday loading trash and discarded gear inside the Cygnus with assistance from fellow NASA astronauts Jeanette Epps and Tracy C. Dyson. Cygnus was captured by the Canadarm2 robotic arm on Feb. 1 with over 8,200 pounds of science experiments and crew supplies.

At the end of the day, Epps operated standard medical imaging gear found in an optometrist’s office on Earth and peered into Dyson’s eyes. She examined Dyson’s cornea, retina, and lens to help flight surgeons understand and counteract microgravity’s effect on crew vision.

Earlier, Dyson collected and stowed excess space station hardware for disposal. Epps spent her morning inside the Kibo laboratory module troubleshooting an airflow sensor then reorganizing the JAXA (Japan Aerospace Exploration Agency) module for upcoming cargo operations.

NASA Flight Engineer Mike Barratt started his day routing cables and reprogramming communications systems inside the Columbus laboratory module. In the afternoon, he stowed hardware and components used earlier in the week for advanced orbital plumbing in the Tranquility module’s bathroom. Afterward, Barratt refilled supply kits in Columbus’ two Human Research Facility racks with biomedical gear including sample tubes and needles.

Starliner’s Commander and Pilot, Butch Wilmore and Suni Williams, partnered together inside Kibo on Friday for space botany work. The duo removed the Plant Habitat growth chamber from Kibo’s EXPRESS rack, replaced its camera and carbon dioxide sensors, then reinstalled the research device. The Plant Habitat has enabled the growth of small crops of lettuce, tomatoes, and more in microgravity for both research and consumption.

NASA and Boeing continue to evaluate Starliner’s propulsion system performance before returning to Earth from the orbiting lab. NASA and Boeing leaders participated in a media teleconference today to discuss Starliner and station operations.

NASA is now targeting the end of July for the next spacewalk outside the space station. This change allows teams on the ground to continue to troubleshoot and understand the water leak in the service and cooling umbilical unit that forced an early end to a spacewalk on Monday, June 24.

Working in the Roscosmos segment, Flight Engineer Nikolai Chub started his day practicing planetary spacecraft and robotic piloting techniques future crew members may use. Afterward, he conducted two sessions of an investigation exploring ways to create new materials on the lunar surface. Flight Engineer Alexander Grebenkin worked throughout the day inventorying medical kits and cleaning fans inside the Rassvet module. Finally, Station Commander Oleg Kononenko replaced thermal components inside Roscosmos’ life support hardware.

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

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Ongoing Spacewalk Preps, Science, and Plumbing Keep Crews Busy

NASA's Boeing Crew Flight Test astronauts Suni Williams and Butch Wilmore (at center) pose with Expedition 71 Flight Engineers (far left) Mike Barratt and Tracy C. Dyson (far right), both NASA astronauts, in their spacesuits.
NASA’s Boeing Crew Flight Test astronauts Suni Williams and Butch Wilmore (at center) pose with Expedition 71 Flight Engineers (far left) Mike Barratt and Tracy C. Dyson (far right), both NASA astronauts, in their spacesuits.

Preparations continue for the next spacewalk at the International Space Station planned for next week. In the meantime, the orbital residents are rebuilding advanced plumbing gear and servicing video and science hardware.

Beginning around 8:45 p.m. EDT on Wednesday, June 26 NASA instructed crews aboard the space station to shelter in their respective spacecraft as a standard precautionary measure after it was informed of a satellite break-up at an altitude near the station’s earlier Wednesday. Mission Control continued to monitor the path of the debris, and after about an hour, the crew was cleared to exit their spacecraft and the station resumed normal operations.

NASA Flight Engineers Tracy C. Dyson and Mike Barratt began Thursday morning reviewing procedures for a spacewalk that will see hardware replacements and installations, preparations for future upgrades on science gear, and photographic inspections of station pipelines. After lunchtime, the two astronauts turned on a computer that visualized the upcoming spacewalk tasks using 3D graphics. NASA will release an advisory soon announcing the spacewalking details and NASA TV coverage times.

NASA Flight Engineers Matthew Dominick and Jeanette Epps had a busy day with spacesuit maintenance, computer updates, and orbital plumbing. Dominick then worked in the Quest airlock during the afternoon recharging spacesuit batteries and dumping and filling the suit water tanks. Epps swapped out a hard drive on a science laptop computer then replaced plumbing components in the Tranquility module’s bathroom, also called the water and hygiene compartment.

Astronauts Butch Wilmore and Suni Williams, both from NASA’s Boeing Crew Flight Test, were back on orbital plumbing duty Thursday. The Starliner Commander and Pilot spent the afternoon preparing the rebuilt pressure control and pump assembly motor for installation in Tranquility’s bathroom.

The orbital outpost’s three cosmonauts relaxed part of Thursday morning before going right into their standard science maintenance tasks. Commander Oleg Kononenko and Flight Engineer Nikolai Chub first began outfitting cables on video cameras. Kononenko then replaced video systems hardware in the Zvezda service module as Chub studied ways to create new materials on the lunar surface. Flight Engineer Alexander Grebenkin photographed microbe samples, dismantled a science cooler, then cleaned air ducts in the Nauka science module.

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

Get weekly video highlights at: https://roundupreads.jsc.nasa.gov/videoupdate/

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