The International Space Station (ISS) is experiencing another air leak.
This issue was confirmed by NASA last week and comes after ongoing challenges the agency had hoped to resolve earlier this year.
The 27-year-old space station has faced air leak problems since 2019, particularly in the PrK module, a narrow transport tunnel in the Russian section.
In January, NASA reported that the PrK module had achieved a “stable condition” following multiple inspections and the application of sealants.
Unfortunately, on May 1st, the leak re-emerged.
NASA informed the media that a “slow pressure drop” was detected in the PrK module while Russian cosmonauts were unloading cargo.
This leak, described as a microscopic structural crack, leads to a loss of about one pound of air daily. According to NASA spokesperson Josh Finch, it is “maintained at lower pressures with small amounts of repressurization as needed.”
While the leak does not compromise the safety of the seven astronauts on board the ISS, internal discussions are ongoing regarding potential “catastrophic failure.”
Using a 5×5 “risk matrix,” NASA has classified the leak in the Russian module as a “5,” indicating both high probability and high impact.
The agency has emergency evacuation procedures in place, allowing astronauts to leave the ISS if the situation deteriorates. This includes isolating affected areas and, in extreme cases, evacuating astronauts back to Earth.
For over five years, both NASA and Russia’s space agency Roscosmos have been monitoring leaks from smaller Russian modules on the station.
The issues began in 2019 when a small yet persistent leak was identified in the PrK module.
Leak rates are expected to double by 2024, prompting NASA to classify it as one of the most serious safety concerns aboard the ISS. It’s currently deemed the highest risk facing the station.
This latest incident raises alarms about the aging ISS, which is due for retirement in 2030. However, discussions are underway regarding extending its operations beyond 2032 until a commercial replacement is ready.
Phil McAllister, a former director of commercial spaceflight at NASA, stated, “This further supports the wisdom of returning the ISS in 2030 and replacing it with a more modern, cost-effective and safer commercial platform.”
The Post has reached out to NASA for further comments.
