Fri Jun 13 04:23:04 UTC 2025: **Summary:**

The launch of the Axiom Mission 4 to the International Space Station (ISS), which includes Indian astronaut Group Captain Shubhanshu Shukla, has been postponed again due to a pressure leak detected in the Russian Zvezda service module of the ISS. NASA and Roscosmos are investigating the issue. ISRO Chairman Dr. V. Narayanan emphasized safety as the priority, highlighting ISRO’s recommendation for repairs and testing before launch clearance. This marks the latest in a series of postponements due to various technical issues and weather conditions.

**News Article:**

**Indian Astronaut’s ISS Mission Delayed Again Due to ISS Leak**

**Bengaluru, June 13, 2025:** The launch of Axiom Mission 4 to the International Space Station (ISS), carrying Indian astronaut Group Captain Shubhanshu Shukla, has been delayed yet again. This time, the postponement is due to a newly discovered pressure leak in the aft segment of the Zvezda service module, a Russian component of the ISS.

NASA announced it is working with Roscosmos to investigate the “new pressure signature” detected following recent repair efforts on the Zvezda module. Cosmonauts on board the ISS have already inspected and sealed potential leak points.

“Postponement of Axiom Mission 4 provides additional time for NASA and Roscosmos to evaluate the situation and determine whether any additional troubleshooting is necessary,” NASA stated.

This marks the latest in a string of delays. The launch, originally scheduled for May 29th, was initially pushed back due to concerns with the Crew Dragon module’s electrical harness. Subsequent postponements were attributed to Falcon 9 vehicle readiness, unfavorable weather conditions, and an oxygen leak in the engine bay.

ISRO Chairman Dr. V. Narayanan emphasized India’s commitment to safety. “ISRO is working closely with the other agencies involved in the mission as they responsibly address the ISS Zvezda module observation causing the Ax‑4 delay. Safety and mission integrity remain our top priorities,” he said, referring to ISRO’s recommendation for in-situ repairs and low-temperature leak tests prior to launch.

A new launch date for the Axiom-4 mission, which will launch aboard a SpaceX Dragon spacecraft on a Falcon 9 rocket, is yet to be determined. The delay underscores the complexities and risks inherent in space travel, highlighting the critical importance of international collaboration and rigorous safety protocols.

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