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Scientists discover a hidden flaw that challenges 40 years of superconductor science Date: October 24, 2026 Source: University of Warwick Summary: A superconducting material studied for 40 years has turned out to be far more complex than scientists believed. Advanced 3D imaging revealed a hidden patchwork of crystal structures, with unusually wide boundaries that may weaken superconductivity. The discovery challenges decades of scientific assumptions and could explain why some superconductors outperform others.