NASA astronauts aboard the International Space Station are gearing up for a spacewalk to fix a robotic arm, as independent advisers flag growing worries about the orbital outpost's structural health and the condition of its spacesuits.
The repair target is one of the station's external robotic manipulators, a critical tool for berthing cargo spacecraft and maintaining external hardware. Such spacewalks are routine, but the intervention comes at a time when the ISS is showing signs of 25 years of continuous habitation in low Earth orbit.
No specific launch window has been announced for the extravehicular activity. The operation itself is expected to take several hours, though the duration will depend on the complexity of the work and the condition of the affected components.
The broader concern stems from a recent advisory panel's assessment that both the station's integrated structure and its aging fleet of spacesuits may be approaching operational limits. While NASA has long planned for the ISS to operate through 2030, these warnings add pressure to the timeline for transitioning to commercial successors.
Cost estimates for extending the life of the ISS or accelerating the shift to private stations were not detailed in the report. The spacewalk underscores the delicate balance between maintaining current assets and building the next generation of orbital infrastructure.