> Canonical: https://atalk.tv/2026/08/iss-august-18-spacewalk-antenna-robotics/ > Static machine-readable Markdown representation of the canonical Atalk.TV page. UPDATED | Technology · Global ATALK.TV GLOBAL NEWS Aug 25, 2026 · Updated ◎ # ISS Antenna Repair Moves to a Second Spacewalk on August 25 — Why Canadarm2 Still Matters NASA and ESA say the August 18 spacewalk removed the failed space-to-ground antenna but could not install its replacement after stuck hardware consumed time; Anil Menon and Sophie Adenot are scheduled to return outside August 25 to finish the job with Canadarm2 support. i One-line takeaway NASA and ESA say the August 18 spacewalk by Anil Menon and Sophie Adenot lasted 6 hours, 23 minutes and succeeded in removing the failed Space-to-Ground Antenna 2, but stuck bolts and connectors prevented the spare antenna from being installed during that outing. By [Leo](/author/leo/) Published Aug 17, 2026 Updated Aug 25, 2026 Technology ATALK.TV NEWS EXPLAINED A complete report built from traceable sources Atalk.TV topic visual · the original social graphic remains available in the report visual module ## 1What happened The first outing demonstrated why a maintenance plan can change even after extensive rehearsal. Menon and Adenot began U.S. spacewalk 97 with a sequence designed to remove an aging high-speed communications antenna, move it out of the way, retrieve a spare and install the replacement. ESA says the pair completed removal of SGANT-2, which had been unable to track the Tracking and Data Relay Satellite constellation… ## 2Why it matters - •The August 18, 2026 spacewalk is complete, but the antenna-replacement job is not. NASA’s Expedition 75 record lists the… - •NASA has scheduled U.S. spacewalk 98 for August 25, with live coverage beginning at 7 a.m. EDT and the spacewalk expected… - •The August 18, 2026 spacewalk is complete, but the antenna-replacement job is not. NASA’s Expedition 75 record lists the… ## Event timeline - NASA and ESA say the August 18 spacewalk by Anil Menon and Sophie Adenot lasted 6 hours, 23 minutes and succeeded in removing the failed… - spacewalk 98 for August 25, with live coverage beginning at 7 a.m. - The August 25 plan is still a plan until the work is completed: NASA says a September 1 maintenance spacewalk remains under consideration, and its… - The August 18, 2026 spacewalk is complete, but the antenna-replacement job is not. - spacewalk 98 on August 25 to finish replacing the antenna. ## What to watch next - The August 18, 2026 spacewalk is complete, but the antenna-replacement job is not. - NASA’s Expedition 75 record lists the outing by NASA astronaut Anil Menon and ESA… - ESA’s post-spacewalk account adds the operational detail that matters most for this… - Mission Control revised the objectives and the crew secured the removed antenna to the… ## Sources - [NASA — Expedition 75 robotics and August 18 spacewalk preparations](https://www.nasa.gov/blogs/spacestation/2026/08/14/week-ends-aboard-station-with-robotics-spacewalk-reviews-and-science/)primary government · Aug 14, 2026 - [NASA — Expedition 75 mission overview](https://www.nasa.gov/mission/expedition-75/)primary government - [NASA — Spacewalk preps continue to finish antenna installation job](https://www.nasa.gov/blogs/spacestation/2026/08/20/spacewalk-preps-continue-to-finish-antenna-installation-job-next-week/)primary government · Aug 20, 2026 - [ESA — First spacewalk completed for Sophie Adenot](https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/epsilon/First_spacewalk_completed_for_Sophie_Adenot)primary intergovernmental · Aug 19, 2026 - [ESA — Watch Sophie Adenot’s second spacewalk live](https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Watch_Sophie_Adenot_s_second_spacewalk_live)primary intergovernmental · Aug 21, 2026 ## ◷ 60-second read - NASA has scheduled U.S. spacewalk 98 for August 25, with live coverage beginning at 7 a.m. EDT and the spacewalk expected to start around 8:35 a.m. EDT and last roughly six and a half hours. - Menon is expected to ride Canadarm2 to retrieve the spare antenna while Adenot releases it from an external platform; they then plan to install it on the Z1 truss and make the electrical and data connections needed to restore full communications redundancy. - The August 25 plan is still a plan until the work is completed: NASA says a September 1 maintenance spacewalk remains under consideration, and its exact task list depends partly on what the crew finishes on August 25. ## Related reading [NASA and SpaceX Begin Crew-13 Flight Readiness Review for an Oct. 1 Launch Target](/2026/09/nasa-spacex-crew13-flight-readiness-review-oct1/)[The August 12 Total Solar Eclipse Is Over — What NASA Was Studying Along the Path](/2026/08/august-12-total-solar-eclipse-nasa-science-after-event/)[NASA’s Roman Telescope Is in Commissioning — Ground Stations Are Ready for the Data Surge](/2026/08/nasa-roman-telescope-august-30-launch-target/) ## Complete report Background, mechanisms, consequences and uncertainty — beyond the dashboard. ## Current status: why a second spacewalk is needed The August 18, 2026 spacewalk is complete, but the antenna-replacement job is not. NASA’s Expedition 75 record lists the outing by NASA astronaut Anil Menon and ESA astronaut Sophie Adenot at 6 hours, 23 minutes. ESA’s post-spacewalk account adds the operational detail that matters most for this update: the pair removed the failed Space-to-Ground Antenna 2, known as SGANT-2, but stuck bolts and connectors consumed enough time that they could not install the spare antenna during the same excursion. Mission Control revised the objectives and the crew secured the removed antenna to the station structure instead of completing the planned swap. NASA now says Menon and Adenot are scheduled to conduct U.S. spacewalk 98 on August 25 to finish replacing the antenna. Live coverage is scheduled to begin at 7 a.m. EDT, with the spacewalk expected to start around 8:35 a.m. EDT and last about six and a half hours. Those times remain operational targets until the crew actually begins the excursion. ## What happened on August 18 The first outing demonstrated why a maintenance plan can change even after extensive rehearsal. Menon and Adenot began U.S. spacewalk 97 with a sequence designed to remove an aging high-speed communications antenna, move it out of the way, retrieve a spare and install the replacement. ESA says the pair completed removal of SGANT-2, which had been unable to track the Tracking and Data Relay Satellite constellation used for station communications since November 2025. The astronauts encountered stuck bolts and connectors while working on the failed unit, forcing the crew and Mission Control to spend more time than planned on disconnection and removal. That left too little time to install the spare safely before the end of the scheduled excursion. The result is an important distinction for readers: the August 18 spacewalk was successful in completing a major part of the repair, but it did not restore the replacement antenna to service. The August 25 follow-up exists precisely because the original task sequence was only partially completed. ## What the August 25 spacewalk is designed to finish NASA’s August 20 station update and ESA’s August 21 preview describe the follow-up plan in concrete terms. Menon is expected to ride the Canadarm2 robotic arm to retrieve the spare antenna from an external platform while Adenot releases the hardware. The two spacewalkers then plan to install the spare on the Z1 truss above the Unity module and make the precise electrical and data connections needed to activate it. ESA says the goal is to restore full redundancy to the station’s high-speed space-to-ground communications system after the SGANT-2 failure. NASA also lists a get-ahead task if time permits: replacing a retroreflector on the forward port of the Harmony module to improve navigation data for visiting spacecraft. That optional task matters because it shows how mission controllers sequence work by priority. The antenna replacement is the primary objective; lower-priority maintenance is attempted only if time, consumables and crew conditions support it. ## Why Canadarm2 is central rather than incidental The repair remains a human-robotic operation. Menon is expected to be attached to Canadarm2 for portions of the August 25 task so the arm can position him and the spare antenna at work locations that are difficult to reach efficiently by handrail translation alone. From inside the station, Jack Hathaway is expected to operate Canadarm2 with Jessica Meir helping monitor the spacewalk and support the crew. The robotic arm does not make the repair autonomous. Its movements are planned around the spacewalkers’ tether positions, body orientation, tools, cables and nearby station structure. The outside crew still performs the fine manipulation needed to release, position and connect the antenna, while the inside crew manages the robotic positioning system and Mission Control coordinates the procedure. That division of labor is why the event is a useful example of modern space operations: robotics expands human reach and stabilizes large hardware, while people remain responsible for the complex physical interfaces and judgment calls that change when real hardware does not behave exactly as expected. ## Why the antenna matters to station operations The Space-to-Ground antenna is part of the communications infrastructure linking the International Space Station with NASA’s Tracking and Data Relay Satellite system and Mission Control in Houston. ESA says the failed SGANT-2 had not been able to track the relay-satellite constellation since November 2025. A single failed antenna does not mean the station loses all communications because the system is designed with redundancy, but restoring the spare unit matters for resilience. High-rate communications support operational data, science data and coordination between the orbital laboratory and teams on the ground. Redundancy is especially valuable on a permanently crewed spacecraft because another failure can become more consequential if backup paths have already been lost. The August 25 work is therefore not simply a cosmetic hardware replacement. The objective is to return the communications architecture to a stronger fault-tolerant state. Atalk.TV will treat full redundancy as restored only after NASA or ESA confirms the replacement has been installed, connected and activated successfully. ## Why the first delay is useful evidence about space maintenance Stuck bolts and connectors sound mundane, but they illustrate why space maintenance timelines are long and why mission planners preserve flexibility. A bolt that resists removal can consume far more time when an astronaut is working in a pressurized spacesuit with limited dexterity, tether constraints and strict life-support margins. Electrical and data connectors also must be handled without damaging the replacement hardware or nearby station systems. The August 18 delay shows that robotic positioning and detailed rehearsal reduce risk but do not eliminate physical uncertainty. Mission Control responded by changing the sequence, securing the removed antenna and deferring installation rather than pressing ahead simply to match the original plan. That decision is part of the successful outcome: space operations are judged not only by how many planned tasks are completed, but by whether the crew maintains safety and leaves the station in a known configuration when time or hardware behavior changes. The follow-up spacewalk is the controlled continuation of that unfinished work, not evidence that the first excursion failed wholesale. ## Why it matters for future human-robot operations The two-spacewalk sequence is a concrete example of a broader pattern likely to matter for future orbital servicing and exploration. Complex infrastructure can require people, robotic manipulators and remote operators to work as one system across multiple days rather than complete every objective in a single excursion. Robots can carry, position and stabilize hardware, while astronauts handle connectors, fasteners and unexpected conditions that remain difficult to automate reliably. Ground controllers can revise the plan when real hardware differs from expectations, and the inside crew can manage robotic motion while the outside crew concentrates on the worksite. The August 18 delay also shows why future systems benefit from maintainable interfaces, accessible fasteners, standardized connectors and procedures that provide safe stopping points. A resilient maintenance architecture assumes that something may take longer than expected. The value of robotics is therefore not that it removes people from the loop, but that it gives the human team more reach, control and options when a repair evolves away from the original script. ## What to watch next The immediate evidence to watch is whether U.S. spacewalk 98 begins on August 25 as scheduled, whether Menon and Adenot successfully retrieve and install the spare SGANT unit, and whether NASA or ESA confirms the electrical and data connections restore the intended communications redundancy. The optional retroreflector replacement should be treated separately from the primary antenna task because NASA says it will be attempted only if time permits. NASA is also considering another maintenance spacewalk on September 1 to connect power-channel cables and data-relay systems, but the agency says the exact need and task mix will be decided after the August 25 work. Atalk.TV will update this same durable URL after the spacewalk with the confirmed task results, rather than creating a duplicate event page. Until then, the important boundary is simple: the August 18 removal is confirmed, the August 25 replacement is scheduled, and the final system configuration should not be inferred before NASA or ESA reports what was actually completed. [Space Science](/topic/space-science/)[NASA](/organization/nasa/)[Anil Menon](/person/anil-menon/)[Sophie Adenot](/person/sophie-adenot/)[Jessica Meir](/person/jessica-meir/)[Jack Hathaway](/person/jack-hathaway/) ## Full source trail All linked evidence used by this report is preserved below; dashboard summaries are intentionally compact. - [NASA — Expedition 75 robotics and August 18 spacewalk preparations ↗](https://www.nasa.gov/blogs/spacestation/2026/08/14/week-ends-aboard-station-with-robotics-spacewalk-reviews-and-science/)primary government · Aug 14, 2026 - [NASA — Expedition 75 mission overview ↗](https://www.nasa.gov/mission/expedition-75/)primary government · date not recorded - [NASA — Spacewalk preps continue to finish antenna installation job ↗](https://www.nasa.gov/blogs/spacestation/2026/08/20/spacewalk-preps-continue-to-finish-antenna-installation-job-next-week/)primary government · Aug 20, 2026 - [ESA — First spacewalk completed for Sophie Adenot ↗](https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/epsilon/First_spacewalk_completed_for_Sophie_Adenot)primary intergovernmental · Aug 19, 2026 - [ESA — Watch Sophie Adenot’s second spacewalk live ↗](https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Watch_Sophie_Adenot_s_second_spacewalk_live)primary intergovernmental · Aug 21, 2026 In Brief Verification & source notes Claim-level evidence, quick answers and update history Direct answer ## What you need to know NASA and ESA say the August 18 spacewalk by Anil Menon and Sophie Adenot lasted 6 hours, 23 minutes and succeeded in removing the failed Space-to-Ground Antenna 2, but stuck bolts and connectors prevented the spare antenna from being installed during that outing. NASA has scheduled U.S. spacewalk 98 for August 25, with live coverage beginning at 7 a.m. EDT and the spacewalk expected to start around 8:35 a.m. EDT and last roughly six and a half hours. Answer engine summary ## Key facts - NASA and ESA say the August 18 spacewalk by Anil Menon and Sophie Adenot lasted 6 hours, 23 minutes and succeeded in removing the failed Space-to-Ground Antenna 2, but stuck bolts and connectors prevented the spare antenna from being installed during that outing. - NASA has scheduled U.S. spacewalk 98 for August 25, with live coverage beginning at 7 a.m. EDT and the spacewalk expected to start around 8:35 a.m. EDT and last roughly six and a half hours. - Menon is expected to ride Canadarm2 to retrieve the spare antenna while Adenot releases it from an external platform; they then plan to install it on the Z1 truss and make the electrical and data connections needed to restore full communications redundancy. - The August 25 plan is still a plan until the work is completed: NASA says a September 1 maintenance spacewalk remains under consideration, and its exact task list depends partly on what the crew finishes on August 25. As of: Aug 25, 2026 Freshness and uncertainty ## Current status: what is confirmed and what remains open ### Confirmed in the source-backed record - NASA and ESA say the August 18 spacewalk by Anil Menon and Sophie Adenot lasted 6 hours, 23 minutes and succeeded in removing the failed Space-to-Ground Antenna 2, but stuck bolts and connectors prevented the spare antenna from being installed during that outing. - NASA has scheduled U.S. spacewalk 98 for August 25, with live coverage beginning at 7 a.m. EDT and the spacewalk expected to start around 8:35 a.m. EDT and last roughly six and a half hours. - Menon is expected to ride Canadarm2 to retrieve the spare antenna while Adenot releases it from an external platform; they then plan to install it on the Z1 truss and make the electrical and data connections needed to restore full communications redundancy. ### Limits, uncertainty and next signals - Current status: why a second spacewalk is needed: The August 18, 2026 spacewalk is complete, but the antenna-replacement job is not. NASA’s Expedition 75 record lists the outing by NASA astronaut Anil Menon and ESA astronaut Sophie Adenot at 6 hours, 23 minutes. ESA’s post-spacewalk account adds the operational detail that matters most for this update: the pair removed the failed Space-to-Ground Antenna 2, known as SGANT-2, but stuck bolts and connectors consumed enough time that they could not install the spare antenna during the same excursion. Mission Control revised the objectives and the crew secured the removed antenna to the station structure instead of completing the planned swap. NASA now says Menon and Adenot are scheduled to conduct U.S. spacewalk 98 on August 25 to finish replacing the antenna. Live coverage is scheduled to begin at 7 a.m. EDT, with the spacewalk expected to start around 8:35 a.m. EDT and last about six and a half hours. Those times remain operational targets until the crew actually begins the excursion. - Why the first delay is useful evidence about space maintenance: Stuck bolts and connectors sound mundane, but they illustrate why space maintenance timelines are long and why mission planners preserve flexibility. A bolt that resists removal can consume far more time when an astronaut is working in a pressurized spacesuit with limited dexterity, tether constraints and strict life-support margins. Electrical and data connectors also must be handled without damaging the replacement hardware or nearby station systems. The August 18 delay shows that robotic positioning and detailed rehearsal reduce risk but do not eliminate physical uncertainty. Mission Control responded by changing the sequence, securing the removed antenna and deferring installation rather than pressing ahead simply to match the original plan. That decision is part of the successful outcome: space operations are judged not only by how many planned tasks are completed, but by whether the crew maintains safety and leaves the station in a known configuration when time or hardware behavior changes. The follow-up spacewalk is the controlled continuation of that unfinished work, not evidence that the first excursion failed wholesale. - What to watch next: The immediate evidence to watch is whether U.S. spacewalk 98 begins on August 25 as scheduled, whether Menon and Adenot successfully retrieve and install the spare SGANT unit, and whether NASA or ESA confirms the electrical and data connections restore the intended communications redundancy. The optional retroreflector replacement should be treated separately from the primary antenna task because NASA says it will be attempted only if time permits. NASA is also considering another maintenance spacewalk on September 1 to connect power-channel cables and data-relay systems, but the agency says the exact need and task mix will be decided after the August 25 work. Atalk.TV will update this same durable URL after the spacewalk with the confirmed task results, rather than creating a duplicate event page. Until then, the important boundary is simple: the August 18 removal is confirmed, the August 25 replacement is scheduled, and the final system configuration should not be inferred before NASA or ESA reports what was actually completed. Questions this article answers ## Quick answers ### What is the current status? The August 18, 2026 spacewalk is complete, but the antenna-replacement job is not. NASA’s Expedition 75 record lists the outing by NASA astronaut Anil Menon and ESA astronaut Sophie Adenot at 6 hours, 23 minutes. ESA’s post-spacewalk account adds the operational detail that matters most for this update: the pair removed the failed Space-to-Ground Antenna 2, known as SGANT-2, but stuck bolts and connectors consumed enough time that they could not install the spare antenna during the same excursion. Mission Control revised the objectives and the crew secured the removed antenna to the station structure instead of completing the planned swap. NASA now says Menon and Adenot are scheduled to conduct U.S. spacewalk 98 on August 25 to finish replacing the antenna. Live coverage is scheduled to begin at 7 a.m. EDT, with the spacewalk expected to start around 8:35 a.m. EDT and last about six and a half hours. Those times remain operational targets until the crew actually begins the excursion. ### What happened on August 18? The first outing demonstrated why a maintenance plan can change even after extensive rehearsal. Menon and Adenot began U.S. spacewalk 97 with a sequence designed to remove an aging high-speed communications antenna, move it out of the way, retrieve a spare and install the replacement. ESA says the pair completed removal of SGANT-2, which had been unable to track the Tracking and Data Relay Satellite constellation used for station communications since November 2025. The astronauts encountered stuck bolts and connectors while working on the failed unit, forcing the crew and Mission Control to spend more time than planned on disconnection and removal. That left too little time to install the spare safely before the end of the scheduled excursion. The result is an important distinction for readers: the August 18 spacewalk was successful in completing a major part of the repair, but it did not restore the replacement antenna to service. The August 25 follow-up exists precisely because the original task sequence was only partially completed. ### What the August 25 spacewalk is designed to finish? NASA’s August 20 station update and ESA’s August 21 preview describe the follow-up plan in concrete terms. Menon is expected to ride the Canadarm2 robotic arm to retrieve the spare antenna from an external platform while Adenot releases the hardware. The two spacewalkers then plan to install the spare on the Z1 truss above the Unity module and make the precise electrical and data connections needed to activate it. ESA says the goal is to restore full redundancy to the station’s high-speed space-to-ground communications system after the SGANT-2 failure. NASA also lists a get-ahead task if time permits: replacing a retroreflector on the forward port of the Harmony module to improve navigation data for visiting spacecraft. That optional task matters because it shows how mission controllers sequence work by priority. The antenna replacement is the primary objective; lower-priority maintenance is attempted only if time, consumables and crew conditions support it. ### Why Canadarm2 is central rather than incidental? The repair remains a human-robotic operation. Menon is expected to be attached to Canadarm2 for portions of the August 25 task so the arm can position him and the spare antenna at work locations that are difficult to reach efficiently by handrail translation alone. From inside the station, Jack Hathaway is expected to operate Canadarm2 with Jessica Meir helping monitor the spacewalk and support the crew. The robotic arm does not make the repair autonomous. Its movements are planned around the spacewalkers’ tether positions, body orientation, tools, cables and nearby station structure. The outside crew still performs the fine manipulation needed to release, position and connect the antenna, while the inside crew manages the robotic positioning system and Mission Control coordinates the procedure. That division of labor is why the event is a useful example of modern space operations: robotics expands human reach and stabilizes large hardware, while people remain responsible for the complex physical interfaces and judgment calls that change when real hardware does not behave exactly as expected. ### Why the antenna matters to station operations? The Space-to-Ground antenna is part of the communications infrastructure linking the International Space Station with NASA’s Tracking and Data Relay Satellite system and Mission Control in Houston. ESA says the failed SGANT-2 had not been able to track the relay-satellite constellation since November 2025. A single failed antenna does not mean the station loses all communications because the system is designed with redundancy, but restoring the spare unit matters for resilience. High-rate communications support operational data, science data and coordination between the orbital laboratory and teams on the ground. Redundancy is especially valuable on a permanently crewed spacecraft because another failure can become more consequential if backup paths have already been lost. The August 25 work is therefore not simply a cosmetic hardware replacement. The objective is to return the communications architecture to a stronger fault-tolerant state. Atalk.TV will treat full redundancy as restored only after NASA or ESA confirms the replacement has been installed, connected and activated successfully. ### Why the first delay is useful evidence about space maintenance? Stuck bolts and connectors sound mundane, but they illustrate why space maintenance timelines are long and why mission planners preserve flexibility. A bolt that resists removal can consume far more time when an astronaut is working in a pressurized spacesuit with limited dexterity, tether constraints and strict life-support margins. Electrical and data connectors also must be handled without damaging the replacement hardware or nearby station systems. The August 18 delay shows that robotic positioning and detailed rehearsal reduce risk but do not eliminate physical uncertainty. Mission Control responded by changing the sequence, securing the removed antenna and deferring installation rather than pressing ahead simply to match the original plan. That decision is part of the successful outcome: space operations are judged not only by how many planned tasks are completed, but by whether the crew maintains safety and leaves the station in a known configuration when time or hardware behavior changes. The follow-up spacewalk is the controlled continuation of that unfinished work, not evidence that the first excursion failed wholesale. Durable URL history ## Update ledger - Aug 17, 2026PublishedInitial Atalk.TV publication. - Aug 25, 2026UpdatedLatest material update reflected in this durable article URL. Claim-level evidence ## Claims and supporting sources Each claim below is tied to the article's verified source set. When the wording names a publisher, Atalk.TV narrows the evidence to that publisher's linked source; otherwise the verification basis or complete article source set is shown. ### NASA and ESA say the August 18 spacewalk by Anil Menon and Sophie Adenot lasted 6 hours, 23 minutes and succeeded in removing the failed Space-to-Ground Antenna 2, but stuck bolts and connectors prevented the spare antenna from being installed during that outing. Evidence scope: publisher matched · Verified Aug 25, 2026 - [NASA — Expedition 75 robotics and August 18 spacewalk preparations](https://www.nasa.gov/blogs/spacestation/2026/08/14/week-ends-aboard-station-with-robotics-spacewalk-reviews-and-science/) - [NASA — Expedition 75 mission overview](https://www.nasa.gov/mission/expedition-75/) - [NASA — Spacewalk preps continue to finish antenna installation job](https://www.nasa.gov/blogs/spacestation/2026/08/20/spacewalk-preps-continue-to-finish-antenna-installation-job-next-week/) - [ESA — First spacewalk completed for Sophie Adenot](https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/epsilon/First_spacewalk_completed_for_Sophie_Adenot) - [ESA — Watch Sophie Adenot’s second spacewalk live](https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Watch_Sophie_Adenot_s_second_spacewalk_live) ### NASA has scheduled U.S. spacewalk 98 for August 25, with live coverage beginning at 7 a.m. EDT and the spacewalk expected to start around 8:35 a.m. EDT and last roughly six and a half hours. Evidence scope: publisher matched · Verified Aug 25, 2026 - [NASA — Expedition 75 robotics and August 18 spacewalk preparations](https://www.nasa.gov/blogs/spacestation/2026/08/14/week-ends-aboard-station-with-robotics-spacewalk-reviews-and-science/) - [NASA — Expedition 75 mission overview](https://www.nasa.gov/mission/expedition-75/) - [NASA — Spacewalk preps continue to finish antenna installation job](https://www.nasa.gov/blogs/spacestation/2026/08/20/spacewalk-preps-continue-to-finish-antenna-installation-job-next-week/) ### Menon is expected to ride Canadarm2 to retrieve the spare antenna while Adenot releases it from an external platform; they then plan to install it on the Z1 truss and make the electrical and data connections needed to restore full communications redundancy. Evidence scope: article source set · Verified Aug 25, 2026 - [NASA — Expedition 75 robotics and August 18 spacewalk preparations](https://www.nasa.gov/blogs/spacestation/2026/08/14/week-ends-aboard-station-with-robotics-spacewalk-reviews-and-science/) - [NASA — Expedition 75 mission overview](https://www.nasa.gov/mission/expedition-75/) - [NASA — Spacewalk preps continue to finish antenna installation job](https://www.nasa.gov/blogs/spacestation/2026/08/20/spacewalk-preps-continue-to-finish-antenna-installation-job-next-week/) - [ESA — First spacewalk completed for Sophie Adenot](https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/epsilon/First_spacewalk_completed_for_Sophie_Adenot) - [ESA — Watch Sophie Adenot’s second spacewalk live](https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Watch_Sophie_Adenot_s_second_spacewalk_live) ### The August 25 plan is still a plan until the work is completed: NASA says a September 1 maintenance spacewalk remains under consideration, and its exact task list depends partly on what the crew finishes on August 25. Evidence scope: publisher matched · Verified Aug 25, 2026 - [NASA — Expedition 75 robotics and August 18 spacewalk preparations](https://www.nasa.gov/blogs/spacestation/2026/08/14/week-ends-aboard-station-with-robotics-spacewalk-reviews-and-science/) - [NASA — Expedition 75 mission overview](https://www.nasa.gov/mission/expedition-75/) - [NASA — Spacewalk preps continue to finish antenna installation job](https://www.nasa.gov/blogs/spacestation/2026/08/20/spacewalk-preps-continue-to-finish-antenna-installation-job-next-week/)