17 November 2024

Air Leak on ISS (International Space Station). . .NASA and Roscosmos disagree on cause and severity of ISS air leak

NASA and Roscosmos committee made a joint recommendation to their agencies’ leaders that they would continue to seek a “common understanding of the structural integrity” of PrK and bring in outside experts from academia and industry to support those efforts.

NASA Issues Warning Over ISS Air Leak Risk


Space

NASA Warns of Risks from Prolonged Air Leak on ISS

The International Space Station (ISS) faces an escalating problem as NASA warns of potential “catastrophic failure” caused by a persistent air and pressure leak. The issue, which has persisted for five years, has worsened in recent months, raising concerns about crew safety and the station’s long-term functionality.

The Source of the Leak

The leak originates from a tunnel connecting the Russian Zvezda module to a docking port used for supply spacecraft. Zvezda, launched in 2000, is a critical part of the ISS infrastructure. According to NASA, the cracks causing the leak are minute and located near brackets and pipelines, complicating efforts to diagnose and repair them.

In April, the air loss reached 1.7 kg per day, the highest recorded level. This worsening situation highlights the urgency of addressing the problem to ensure the station’s operational safety.

Differing Opinions on the Threat

NASA and Roscosmos, the Russian space agency, have differing views on the severity of the leak and its underlying causes.

  • NASA’s View: The US agency attributes the issue to a combination of mechanical stress, residual stress, and environmental exposure. It has expressed concerns about long-term structural integrity and the potential for catastrophic failure.
  • Roscosmos’ Response: The Russian agency downplays the risk, citing cyclic fatigue from micro-vibrations as the primary cause and insisting the situation is manageable. It has dismissed NASA’s catastrophic warning as “unrealistic.”

To resolve the deadlock, NASA proposed bringing in neutral experts to assess the situation. However, Roscosmos has rejected this suggestion, further complicating collaborative efforts.

Mitigation Measures in Place

In the absence of an immediate resolution, interim measures aim to minimise risks:

  1. The leaking section remains sealed except during supply operations.
  2. Monitoring systems track the leak rate closely.
  3. Roscosmos has assured that the Service Module hatch can be closed if the situation worsens.

Both agencies are in ongoing discussions to find a long-term solution while balancing operational needs and safety concerns.

The ISS, a symbol of international cooperation, now faces a test of resilience and collaboration as experts work to safeguard its future.



Science
16 November 2024

NASA And Russia Confront Growing Air Leak Risk Aboard ISS

Tension escalates as space agencies debate the alarming air leak threatening ISS operations and crew safety

The International Space Station (ISS) is facing increasing scrutiny and concerns as its air leak issue continues to escalate. 

  • Since its discovery back in 2019, the problem has morphed from a small nuisance to what NASA now labels as the most pressing problem aboard the aging space station. 
  • The underlying cause of this leak, particularly from the Russian module, has become the center of intense debate between NASA and Roscosmos, the Russian space agency, casting shadows over astronaut safety and international collaboration.

Initially detected in the vestibule connecting the Zvezda module to the docking port, the leak has now reached alarming rates, ballooning from around one pound of air leakage daily to nearly two pounds. 

  • According to reports, the ISS has been steadily leaking air for the past five years, with the situation worsening over the course of 2024. 
  • This is not merely technical jargon; it means astronauts aboard the station are potentially losing precious breathable air at concerning rates. . .

The upcoming months will be pivotal for maintaining the balance of safety and operational capability aboard the ISS. The spotlight continues to shine on NASA and Roscosmos, with eyes watching to see if the two sides can agree on how to tackle this issue before it becomes more than just news headlines.

This push and pull of international collaboration is emblematic of larger challenges facing space agencies worldwide. If they cannot resolve this disagreement soon, the ramifications could echo far beyond the confines of the ISS, marking it as either triumph or turmoil within this golden era of human spaceflight.

NASA and Roscosmos disagree on cause and severity of ISS air leak

Jeff Foust November 13, 2024
NASA and Roscosmos disagree on cause and severity of ISS air leak -  SpaceNews
The major concern has been a small but persistent leak in a vestibule of the Zvezda service module called PrK that separates a docking port from the rest of the module. That leak has existed for several years, and station crews have dealt with the leak by sealing off PrK from the rest of the station when they do not need access to Progress cargo spacecraft docked to the port.

Top stories
Experts Warn the International Space Station May Be at Risk of a  “Catastrophic Failure”
China Shows Off Reusable Space Shuttle

No comments:

PHOTONIC TIME CRYSTALS: This research challenges the boundaries of how we can control the light-matter interaction

Scientists Create Photonic Time Crystals That Amplify Light Exponentially By  Aalto University November 15, 2024 1 Comment 3 Mins Read Faceb...