Venus’s pale yellow clouds may hide something surprisingly darkhttps://www.sciencedaily.com/releases/2026/09/260912220022.htm
A century-old mystery in Venus’s clouds just became more intriguing, as scientists calculated how strongly the unidentified material behind its dark ultraviolet patterns must absorb light. The results sharply narrow the possibilities and could help future spacecraft determine whether the mysterious substance is organic, inorganic, or something unexpected.