tech

January 3, 2026

After half a decade, the Russian space station segment stopped leaking

“NASA and Roscosmos continue to monitor and investigate the previously observed cracks.”

After half a decade, the Russian space station segment stopped leaking

TL;DR

  • A long-standing atmospheric leak in the PrK module of the International Space Station has been stopped.
  • The leaks were caused by microscopic structural cracks within the module.
  • Russian cosmonauts used a sealant called Germetall-1 to repair the cracks over several years.
  • NASA has confirmed that the pressure in the affected area is now stable.
  • Russia's primary launch pad at the Baikonur Cosmodrome is currently offline due to an incident during a recent Soyuz launch.
  • The return-to-flight date for the damaged launch pad is currently uncertain.

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