Second ISS air leak renews decompression fears in the Russian module

A renewed air leak in the Russian segment of the International Space Station—specifically the tunnel linking the Zvezda module to the rest of the station—has raised decompression concerns after earlier efforts seemed to fix the issue in 2025. The leak’s return is treated as a high-risk, high-consequence problem by NASA and Roscosmos, but crews continue ongoing operations as maintenance budgets strain resources, with the long-term plan to keep the ISS viable until 2032 and hand over to commercial stations in the future.