Air leak persists in Russian Zvezda module on the ISS

The International Space Station continues to experience an ongoing air leak in the Russian Zvezda module's connecting tunnel. Despite multiple repair attempts, approximately half a kilogram of air escapes into space daily through microscopic cracks.

The International Space Station (ISS) is once again dealing with a persistent air leak in Russia's Zvezda module — a problem that has proven frustratingly resistant to permanent repair. The leak, located in the connecting tunnel of the Zvezda module, currently allows around 500 grams of air to seep into open space every day through tiny microscopic cracks.

The issue is not new — engineers and cosmonauts have been battling this leak for years, attempting various sealing methods and fixes, none of which have managed to fully resolve the problem. Despite the ongoing situation, NASA and Roscosmos have stated that the leak does not pose an immediate danger to the crew aboard the station.

The Zvezda module serves as one of the core components of the Russian segment of the ISS, providing propulsion, navigation, and living quarters for cosmonauts. Its structural integrity is therefore of significant importance to the continued operation of the space station as a whole.

While the rate of air loss is currently considered manageable, the situation remains under close monitoring by both American and Russian space agencies. Engineers continue to explore longer-term solutions to permanently seal the cracks and prevent further degradation of the module's hull.