NASA Lifts Shelter-in-Place Order for International Space Station Crew
NASA officially ended a shelter-in-place procedure for astronauts aboard the International Space Station (ISS) on Friday, June 5, 2026, following concerns regarding a recurring air leak in the Russian segment of the orbital laboratory.
The precautionary measure, which began at 9:04 a.m. ET, required five crew members—NASA astronauts Jessica Meir, Jack Hathaway, and Chris Williams, European Space Agency astronaut Sophie Adenot, and Russian cosmonaut Andrey Fedyaev—to don their spacesuits and relocate to their Crew Dragon spacecraft. This “safe haven” protocol ensures that the crew can depart the station rapidly should an emergency evacuation become necessary.
Addressing the Zvezda Module Leak
The focus of the concern is the Zvezda service module, specifically the transfer tunnel known as the PrK. This section of the Russian segment has experienced persistent pressure issues for several years. While NASA and Roscosmos have collaborated on numerous repair attempts, the leak has proven difficult to fully resolve.
According to NASA Press Secretary Bethany Stevens, Roscosmos has temporarily suspended structural repair efforts inside the Zvezda module. The pause allows mission teams to conduct a more thorough assessment of the data and measurements collected during recent operations. Following this decision, NASA instructed the crew to exit the Crew Dragon and resume their regular scheduled activities.
A History of Pressure Concerns
The challenge of maintaining pressure in the Zvezda module is not new. After a period of relative stability following repairs last year, a new pressure signal appeared in the module, and the leak resurfaced in May 2026. Reports indicate that the volume of air escaping from the Russian module increased earlier this week, prompting heightened vigilance from mission control.
The station remains a complex environment where international cooperation is essential for safety. NASA continues to work closely with its international partners to monitor the integrity of the station’s modules and ensure the ongoing safety of the crew members currently in orbit.
Key Takeaways
- Safe Haven Lifted: NASA concluded the shelter-in-place order for the ISS crew at approximately 11:00 a.m. ET on June 5, 2026.
- Operational Status: Crew members have returned to their standard work schedule after being cleared to exit the Crew Dragon spacecraft.
- Ongoing Repairs: Roscosmos has paused current repair efforts on the Zvezda module’s transfer tunnel to gather additional diagnostic data.
- Persistent Issue: The leak in the Zvezda service module has been a long-standing maintenance challenge, with a recent increase in air loss noted earlier this week.
This is a developing situation. NASA and international space agencies continue to evaluate the long-term status of the Zvezda module as they prioritize the safety of the ISS crew.