A section of the International Space Station (ISS) that has had leaks for years seems to have stopped losing air. The leaks originated from tiny cracks inside the PrK module, located between the Progress spacecraft airlock and the Zvezda module. This issue worried both Russian and US teams, especially after the leakage rate doubled in 2024, prompting NASA to classify it as a serious risk.
Recently, two sources confirmed that the leaks have ceased, and NASA has verified this information as well.
“After further inspections and sealing efforts, the pressure in the transfer tunnel connected to the Zvezda Service Module, known as the PrK, is stable,” said NASA spokesperson Josh Finch. “Both NASA and Roscosmos will continue to monitor the cracks for any changes.”
For nearly five years, Russian cosmonauts operated like detectives, hunting for these elusive leaks. They would close the hatch to the PrK module and look for small dust accumulations to point to leak locations.
Once identified, they used a sealant called Germetall-1, which has been patented. After applying it, they would seal the hatch again, check the pressure, and resume their search for more leaks—an ongoing, meticulous process.
Understanding the significance of this event can also shed light on the value of international collaboration in space. The ISS is a joint effort between multiple countries, and such challenges highlight the importance of working together. While the leaks are currently under control, the journey to ensure the station’s safety and longevity continues, proving that even in the vastness of space, teamwork is crucial.
As of 2024, space agencies are also looking into modern methods, like advanced AI technology, to predict and detect issues in structures like the ISS. This shift could make monitoring more efficient and enhance safety in future missions. In a recent survey, 87% of aerospace professionals stated that upgrading monitoring systems could drastically reduce risks associated with space habitats.
This moment also reminds us of past incidents on the ISS. In 2018, a small leak was found in the Russian segment, which was quickly sealed. Each issue carries lessons that help improve technologies and procedures today, shaping a safer future for astronauts aboard the orbiting laboratory.
