The NASA and Russian federal space agency, Roscosmos, have been at odds regarding the future of the PrK tunnel, a section connecting the Russian Zvezda module to an aft docking port.

Since 2019, the tunnel has been leaking air, reaching a rate of two pounds of air per day during recent cargo operations. On June 5, 2019 disagreement between NASA and Roscosmos over repair methods reached a breaking point.

The Russian space agency is planning to use drastic measures, such as a handsaw and a drill to modify the........

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