Photo: JIM WATSON / AFP / Getty Images
The International Space Station (ISS) is facing delays in repairing cracks and leaks in its Russian-made Zvezda service module, as Russia's space agency pauses efforts to gather more data. The Zvezda module, launched in 2000, has been a concern due to air leaks in its PrK transfer tunnel.
NASA has been monitoring the situation closely, especially since a recent repair appeared to stabilize the module's pressure. However, new pressure signatures prompted further investigation. NASA spokeswoman Dana Weigel confirmed that while the module holds pressure, they want to ensure the leaks are fully sealed.
The delay affects the Axiom-4 private astronaut mission, originally scheduled for June 19. NASA and Axiom Space have postponed the mission indefinitely to allow more time for analysis. The Axiom-4 mission, using a SpaceX Crew Dragon spacecraft, is awaiting a new launch date.
The ISS, a collaboration between the U.S., Russia, Canada, Japan, and Europe, is expected to operate until 2030. However, the leaks raise questions about its long-term viability. The U.S. Congress and NASA are considering extending its lifespan beyond 2030, but this depends on resolving technical issues and securing international support.
Meanwhile, NASA is also focused on developing commercial space stations to succeed the ISS. Companies like Axiom Space are working on their own stations, with plans to attach modules to the ISS by 2027.
The ISS remains operational, with astronauts resuming normal activities after using a return capsule as a precautionary safe haven. NASA and Roscosmos continue to collaborate on addressing the leaks, ensuring the station's safety and functionality.