Tag

Air Leak

All articles tagged with #air leak

Seven-Year Zvezda Air Leak Elevates ISS Safety Risk
space16 days ago

Seven-Year Zvezda Air Leak Elevates ISS Safety Risk

A hairline crack in the Zvezda module's PrK tunnel has vented breathable air into space since 2019, at times roughly 1.7 kilograms per day. NASA safety auditors have designated the PrK leak as the International Space Station's top open risk because a rapid failure could require a crew evacuation. Repairs and patches slowed the loss but did not stop it; the current workaround is to keep the hatch closed when not docking, containing the leak to the tunnel. NASA and Roscosmos remain at odds over cause and fixes, with options including permanently sealing the hatch or abandoning the aft docking port. The issue underscores aging ISS hulls and factors into the deorbit plan slated for 2030.

ISS Tensions Erupt as NASA Shelters While Russia Considers Drilling to Fix Leak
space22 days ago

ISS Tensions Erupt as NASA Shelters While Russia Considers Drilling to Fix Leak

NASA astronauts sheltered in the Dragon after Russia floated drastic repair options, including drilling and a saw, to fix a long-running air leak in the PrK module; after the precautionary move, Roscosmos stood down, with the PrK planned to be de‑pressurized and sealed, potentially limiting its dock and fueling ongoing debate over how to mitigate similar risks.

ISS Safe Haven Drama Highlights Unclear Path to Fix Air Leak
space1 month ago

ISS Safe Haven Drama Highlights Unclear Path to Fix Air Leak

NASA ordered the crew to shelter in the docked Dragon during a Russian attempt to repair a persistent air leak in the PrK transfer tunnel. After about an hour and a half, the Russians halted the work and NASA said it would coordinate with Roscosmos on future repairs, but no timeline or specifics have been announced, underscoring unanswered questions and international tension surrounding the incident.

ISS air-leak scare subsides as crews return from safe-haven
space1 month ago

ISS air-leak scare subsides as crews return from safe-haven

NASA briefly ordered five ISS crew members to evacuate to their SpaceX Crew Dragon after a suspected air leak on the Zvezda module, but reversed the safe-haven order about two hours later as engineers assessed the leak rate and potential fixes. Roscosmos said two leaks were detected but posed no immediate danger, and the crew remained aboard the station while NASA and Russia collaborate on a longer-term fix. The incident highlights ongoing safety protocol practices and comes amid discussions in Congress about extending the ISS’s life to 2032.

ISS Leak Forces Lifeboat Shelter as Russian Repairs Unfold
space1 month ago

ISS Leak Forces Lifeboat Shelter as Russian Repairs Unfold

Five Crew-12 members took shelter in SpaceX's Crew Dragon while Russian cosmonauts worked on persistent air leaks in the PrK transfer tunnel of the International Space Station; Roscosmos sealed two potential leak sites and prepared further fixes, with NASA and Roscosmos pausing the repair to take measurements. After about 90 minutes, mission control allowed the crew to reopen hatches and return to the station, as officials stressed a collaborative effort to address the leaks and indicated no threat to crew safety.

ISS Crew Takes Shelter in Dragon as Leak Repair Unfolds
space-exploration1 month ago

ISS Crew Takes Shelter in Dragon as Leak Repair Unfolds

NASA directed the SpaceX Crew-12 astronauts and Chris Williams to shelter in the Dragon while engineers worked on a leak in the PrK transfer tunnel to the Zvezda module; Roscosmos paused the repair to review data, and NASA later ordered the crew to end the safe‑haven procedure and resume normal ISS operations, underscoring the aging station’s ongoing maintenance challenges.

ISS air leak triggers lifeboat shelter as repairs pause
science1 month ago

ISS air leak triggers lifeboat shelter as repairs pause

NASA ordered five ISS crew members to shelter in the docked SpaceX Dragon lifeboat after a worsening air leak in the transfer tunnel to the Zvezda module; Russian cosmonauts were repairing with a saw and NASA disagreed with the method, prompting the safe‑haven drill before the crew returned to planned operations as repairs paused. The Dragon remains attached as a potential escape capsule, and Tass said there was no immediate danger to crew or the station despite the long‑standing crack in the system.

ISS Crew Resumes Normal Ops After Brief Evacuation Alert Over Zvezda Leak
science1 month ago

ISS Crew Resumes Normal Ops After Brief Evacuation Alert Over Zvezda Leak

NASA ordered Crew-12 to shelter in their Dragon after a worsening air leak in the Zvezda module triggered an evacuation alert, but Roscosmos paused repairs and NASA later directed a return to normal ISS operations as data are reviewed; the four Crew-12 members (two US astronauts, a French astronaut, and a Russian cosmonaut) resumed planned duties while international teams address the leak mitigation.

ISS crew braced for possible evacuation as air leak triggers shelter order
science1 month ago

ISS crew braced for possible evacuation as air leak triggers shelter order

NASA ordered the International Space Station crew to shelter in their spacecraft and prepare for a possible evacuation after a worsening air leak in the Russian segment, with Roscosmos expanding repair work; the affected team includes NASA’s Jessica Meir and Jack Hathaway, ESA’s Sophie Adenot, Roscosmos’ Andrey Fedyaev, and American Chris Williams from Crew-12.

Second ISS air leak renews decompression fears in the Russian module
space1 month ago

Second ISS air leak renews decompression fears in the Russian module

A renewed air leak in the Russian segment of the International Space Station—specifically the tunnel linking the Zvezda module to the rest of the station—has raised decompression concerns after earlier efforts seemed to fix the issue in 2025. The leak’s return is treated as a high-risk, high-consequence problem by NASA and Roscosmos, but crews continue ongoing operations as maintenance budgets strain resources, with the long-term plan to keep the ISS viable until 2032 and hand over to commercial stations in the future.

Persistent ISS Leak in Russian Segment Resurfaces After Repairs
science1 month ago

Persistent ISS Leak in Russian Segment Resurfaces After Repairs

NASA and Roscosmos report that the air leak in the ISS’s Russian segment has returned, with a slow pressure drop in the Zvezda transfer tunnel at about one pound per day. Despite previous repair attempts and a 2025 signal suggesting a possible fix, the leak persists, prompting ongoing management of repressurizations as aging station hardware rings ahead of its 2030 retirement. The crew remains safe, and officials continue to pursue a definitive fix while monitoring the situation.

Russian Segment of ISS Continues to Leak Air Despite Repairs
science11 months ago

Russian Segment of ISS Continues to Leak Air Despite Repairs

The International Space Station's Russian segment continues to leak air despite multiple repair attempts since 2019, with recent efforts slightly reducing the leak but not eliminating it. The issue poses a safety concern, but the crew remains safe, and ongoing international efforts aim to resolve the problem before it worsens. The leak's persistence has delayed some missions, but operations like NASA's Crew-11 are unaffected for now.

Russian Segment of ISS Continues to Leak Air, Raising Safety Concerns
science11 months ago

Russian Segment of ISS Continues to Leak Air, Raising Safety Concerns

The Russian segment of the International Space Station continues to leak air despite multiple repair attempts, with the leak rate doubling over six years. Roscosmos and NASA are still working to find a permanent fix, and if unsuccessful, they may consider sealing off the Russian module entirely, which would reduce docking options but allow the station to operate normally.

NASA and Russia Address New Air Leaks on the ISS
space1 year ago

NASA and Russia Address New Air Leaks on the ISS

NASA is considering a new launch date of June 19 for the Ax-4 private astronaut mission to the ISS, after delays caused by an air leak in the Russian segment and a liquid oxygen leak in a Falcon 9 rocket. The agency is evaluating pressure data from the station's vestibule to assess the leak's severity, while SpaceX has fixed the rocket issue. Elon Musk has reiterated his call for the early retirement of the ISS, citing safety concerns and suggesting deep space missions as alternatives.