Persistent ISS Leak in Russian Segment Resurfaces After Repairs

NASA and Roscosmos report that the air leak in the ISS’s Russian segment has returned, with a slow pressure drop in the Zvezda transfer tunnel at about one pound per day. Despite previous repair attempts and a 2025 signal suggesting a possible fix, the leak persists, prompting ongoing management of repressurizations as aging station hardware rings ahead of its 2030 retirement. The crew remains safe, and officials continue to pursue a definitive fix while monitoring the situation.