Houston, TX – The International Space Station (ISS) is set to undergo a series of critical external upgrades this August 2026, as NASA astronauts embark on three spacewalks designed to enhance power generation, replace vital communication hardware, and fortify data and power infrastructure. These meticulously planned Extravehicular Activities (EVAs), designated U.S. spacewalks 281, 282, and 283, are essential not only for sustaining the station’s robust scientific research and operational capabilities but also for laying the groundwork for its eventual, controlled deorbit. The ambitious schedule underscores NASA’s ongoing commitment to maintaining the orbital outpost as a beacon of international collaboration and scientific discovery while strategically planning for its future.
A Crucial Month for Orbital Maintenance: The August Spacewalk Schedule
The rigorous series of EVAs will kick off with U.S. spacewalk 96 on Thursday, August 6, followed by U.S. spacewalk 97 on Thursday, August 13, and concluding with U.S. spacewalk 98 on Tuesday, August 25. Each spacewalk addresses specific, high-priority maintenance and upgrade tasks that are vital for the station’s continued functionality and safety. NASA will provide comprehensive live coverage of these events, offering a rare glimpse into the complex and demanding work performed by astronauts in the unforgiving vacuum of space. The public can follow these pivotal operations live on nasa.gov/live and other official NASA platforms.
Prior to the commencement of these activities, a news conference will be held at 2 p.m. EDT on Thursday, July 30, at NASA’s Johnson Space Center in Houston. Experts involved in the mission will offer detailed insights into the objectives, challenges, and expected outcomes of the upcoming spacewalks. This briefing serves as a crucial opportunity for media and the public to gain a deeper understanding of the technical intricacies and strategic importance of these missions. United States-based media desiring to attend in person must contact the Johnson newsroom by 3 p.m. EDT on Wednesday, July 29, at [email protected]. Similarly, media intending to join by phone to ask questions should request dial-in details by the same deadline and connect no later than 15 minutes before the conference begins.
Detailed Objectives of the August EVAs
The three spacewalks are strategically designed to address both immediate operational needs and long-term infrastructure goals for the ISS. Each mission carries significant weight for the station’s future.
Thursday, August 6: U.S. Spacewalk 96 – Power Channel Modification and IROSA Preparation
The first spacewalk of the series, U.S. spacewalk 96, will see NASA astronauts Jessica Meir and Anil Menon venture outside the Quest airlock. Their primary objective is to install critical hardware that will modify the station’s 3B power channel. This modification is a prerequisite for the future installation of the seventh International Space Station Roll-Out Solar Array (IROSA). The IROSA, anticipated for delivery later in the year, represents a significant upgrade to the station’s power generation capabilities. Each IROSA unit, approximately 60 feet long and 20 feet wide when fully deployed, is designed to unfurl like a massive yoga mat, providing a substantial boost to the station’s electrical grid.
This additional power is not merely an enhancement; it is fundamental to supporting critical station operations, including its ever-expanding suite of scientific experiments, life support systems, and crucially, its safe and controlled deorbit at the end of its operational life. The existing solar arrays, which have been powering the station for decades, are showing signs of degradation due to the harsh space environment. The IROSA program aims to augment and ultimately replace the aging arrays, ensuring a robust and reliable power supply for the station’s remaining years. This will be Jessica Meir’s sixth spacewalk, showcasing her extensive experience in extravehicular activities, while it marks a significant milestone as Anil Menon’s first foray into the vacuum of space outside the station. Meir will serve as spacewalk crew member 1, identifiable by the red stripes on her suit, while Menon, as crew member 2, will wear an unmarked suit. NASA’s live coverage of this spacewalk will commence at 7 a.m. EDT, with the spacewalk itself projected to begin at 8:35 a.m. EDT and last approximately six and a half hours.
Thursday, August 13: U.S. Spacewalk 97 – Critical Communication Antenna Replacement
The second spacewalk, U.S. spacewalk 97, will focus on replacing a Space-to-Ground antenna on the orbital complex. The specific crew members for this EVA will be announced closer to the date. This antenna is a cornerstone of the ISS’s communication system, serving as the primary conduit for transmitting vast amounts of data and high-speed communications between the Mission Control Center in Houston and the orbiting laboratory. A fully functional Space-to-Ground antenna is indispensable for everything from daily operational instructions and emergency communications to the downlink of invaluable scientific research data and high-definition video from the station. Its replacement ensures uninterrupted and robust communication links, which are vital for mission success and astronaut safety. Any degradation or failure of this system could severely hamper data flow, impacting research progress and operational efficiency.
Tuesday, August 25: U.S. Spacewalk 98 – Power, Data, and Navigational Aid Upgrades
Concluding the August series, U.S. spacewalk 98 will involve connecting power channel cables and data relay systems. These tasks are part of ongoing comprehensive maintenance efforts aimed at bolstering the station’s infrastructure and further preparing it for its future deorbit. The meticulous routing and connection of these cables are critical for ensuring stable power distribution and seamless data transmission across various modules of the station. Additionally, the astronauts will replace a navigational aid located on the Harmony module’s forward port. This navigational aid is crucial for visiting spacecraft, including commercial cargo and crew vehicles, as it provides precise guidance and ranging information necessary for safe and accurate docking procedures. A fully operational navigational aid ensures the continued smooth flow of supplies, scientific experiments, and personnel to and from the ISS, underscoring its role as a global platform for space exploration. As with U.S. spacewalk 97, the specific crew and precise timing for this operation will be released by NASA closer to the mission date.
The Enduring Legacy and Future of the International Space Station
These upcoming spacewalks represent the 281st, 282nd, and 283rd conducted in support of the International Space Station’s assembly, maintenance, and upgrades since its first module was launched in 1998. Each EVA is a testament to human ingenuity and the rigorous training of astronauts, who must operate in a hazardous environment, often dealing with complex equipment and unforgiving timelines. The cumulative hours spent outside the station by astronauts from various nations speak volumes about the collaborative spirit underpinning this monumental engineering feat.
The International Space Station, a unique orbital laboratory, has hosted continuous human presence since November 2000, facilitating groundbreaking research in microgravity, space medicine, Earth observation, and advanced materials. Experiments conducted aboard the ISS have yielded crucial insights into the human body’s adaptation to long-duration spaceflight, paving the way for future missions to the Moon and Mars. It has served as a proving ground for technologies essential for deep-space exploration and a platform for inspiring future generations in science, technology, engineering, and mathematics.
The ongoing IROSA installations are particularly significant as they directly address the station’s power longevity. The first IROSA was successfully installed in June 2021, and subsequent units have progressively enhanced the station’s power output. Each IROSA unit is designed to produce over 20 kilowatts of electricity, significantly boosting the station’s total available power. This additional power allows for more sophisticated scientific instruments, supports a greater number of experiments, and ensures redundancy for critical systems.
Furthermore, the focus on "preparations for the space station’s future deorbit" in the mission objectives highlights a strategic shift in ISS planning. While the station is currently slated for retirement in 2030, NASA and its international partners are meticulously planning for a controlled deorbit to ensure a safe atmospheric reentry over an unpopulated area of the Pacific Ocean, minimizing any risk to life or property on Earth. The robust power and communication systems being maintained and upgraded now are integral to executing this complex maneuver safely and precisely when the time comes. This forward-looking approach ensures that the ISS will not only continue to serve as a vital research platform but also conclude its operational life responsibly.
Astronaut Training and the Rigors of Spacewalks
Spacewalks are among the most challenging and dangerous tasks astronauts undertake. The training involved is incredibly extensive, requiring hundreds of hours in the Neutral Buoyancy Laboratory (NBL) at NASA’s Johnson Space Center. In the NBL, astronauts practice their spacewalk procedures underwater in a massive pool, simulating the microgravity environment and the resistance of their bulky Extravehicular Mobility Units (EMUs), or spacesuits. Every tool, every movement, and every contingency is rehearsed countless times.
Jessica Meir, with her prior spacewalk experience, brings invaluable expertise to these missions. Her previous EVAs have involved similar complex tasks, including battery replacements and repair work. For Anil Menon, this first spacewalk represents a culmination of years of training and a significant personal and professional milestone. Menon, a physician and former SpaceX flight surgeon, joined NASA’s astronaut corps in 2021. His medical background, combined with his rigorous astronaut training, prepares him for the demanding physical and mental challenges of an EVA. The synergy between an experienced spacewalker and a well-trained rookie is crucial for successful and safe operations.
NASA’s Commitment to Global Collaboration and Open Science
NASA’s sustained investment in the International Space Station, exemplified by these ongoing maintenance and upgrade activities, underscores its dedication to international collaboration in space and the advancement of scientific knowledge for the benefit of all humanity. The ISS is a partnership of five space agencies from 15 countries, representing a truly global effort in space exploration. The data and research outcomes from the ISS are openly shared, fostering a global scientific community and driving innovation across various fields.
As these critical spacewalks approach, the world will watch as astronauts continue to push the boundaries of human endeavor, ensuring the longevity and productivity of humanity’s orbital outpost. The August EVAs are not just about fixing and upgrading hardware; they are about extending the life of a unique laboratory, preserving a testament to international cooperation, and meticulously planning for the future of human presence in space.
For more information about International Space Station research, operations, and its crews, please visit: https://www.nasa.gov/station
Media Contacts:
Joshua Finch / Jimi Russell
Headquarters, Washington
202-358-1100
[email protected] / [email protected]
Sandra Jones / Anna Schneider
Johnson Space Center, Houston
281-483-5111
[email protected] / [email protected]
