DANGER IN ORBIT: International Space Station Is Leaking Air Again in a Problem First Detected in 2019 A dangerous air leak has returned to the International Space Station’s PrK module, a problem first detected in 2019 and thought to be resolved earlier this year. NASA confirmed a slow pressure drop, though the risk to astronauts is currently low, with emergency evacuation plans on standby. Internally, the leak is classified as a high likelihood and high consequence risk, with discussions about potential catastrophic failure.

• A recurring air leak in the PrK module of the Russian segment of the ISS has been confirmed by NASA.
• The issue was initially thought to be resolved in January after multiple inspections and sealant applications.
• On May 1, Russian cosmonauts noticed a slow pressure drop after unloading cargo, indicating the leak had returned.
• NASA has stated there are no impacts to station operations or immediate concerns for astronaut safety, but the leak is being monitored.
• Internally, the leak is classified as a ‘5’ on a 5x5 risk matrix, indicating high likelihood and high consequence, with discussions of ‘catastrophic failure’.
• The recurring nature of the leak raises questions about the long-term viability of the ISS.