Leaks from microcracks on the International Space Station (ISS) are a complex problem that is difficult to detect in the short term. Sergei Krikalev, general manager of Roskosmos, explained that the station pressure fluctuates depending on many factors such as temperature, humidity, oxygen consumption and carbon dioxide emissions, and that these changes in the graphs are not a clear indicator of the leak.
On the ISS, leaks can occur due to microcracks that are currently not immediately detectable. Graphs of pressure changes show only a variable pattern, and even a small deviation takes a long time to be noticed. Traditional leak detection methods such as leak detectors are ineffective in this case.
But the causes of microcracks remain unclear. Scientists argue that these are not fatigue cracks, as the areas where the leaks are located are not places of maximum stress. Therefore, the investigation of the source of these problems continues to be a current issue. Various methods have been tried to eliminate microcracks, such as covering with special adhesive tapes and using sealants, but the problems have not been completely eliminated and researchers continue to look for effective ways to solve this problem.
Source: Ferra
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