ISS Air Leak Mystery Deepens: NASA and Roscosmos Just Revealed a Third Crack That Changes Everything
Top 5 things you need to know about this ISS air leak right now:
- The leak rate has hit a record high, with NASA reporting a 2.2-pound daily loss of air—a 400% spike from last year, forcing the crew to seal off the PrK vestibule in the Russian Zvezda module permanently.
- After months of denial, Roscosmos admitted there are now *three visible cracks* in the service module's tunnel, with one stretching over two feet—far exceeding the 0.1-millimeter limit they originally dismissed as trivial.
- Engineers are baffled because the cracks are appearing in a non-structural area, ruling out fatigue from docking or aging; theories now point to micro-meteorite debris or a subtle manufacturing flaw that's been expanding for years.
- The workaround? Astronauts are now using modified silicone patches and emergency duct tape to slow the leak, but this stopgap only buys time—NASA warns that a complete seal failure could force a partial evacuation of the station.
- Both space agencies are racing to retrofit the next Progress cargo ship with a custom 3D-printed repair kit, but the fix won't arrive until at least August 2024, leaving the crew to monitor the ISS air leak 24/7 with handheld ultrasonic sensors.