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@ SLCW
2025-03-31 06:42:25Given that it was meant to be a demonstration of what tiny pieces of space debris can do to structures like the ISS, with a longterm presence in orbit, I think the choice of aluminum makes sense. The most used material on the ISS is aluminum alloy. The Node modules were actually crafted from a single block of aluminum each. There is some stainless steel in its construction, but it's structural, and relatively insignificant compared with the amount of aluminum used.