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Researchers Find Why Ultramarine Blue Fades

The restoration of Michelangelo's frescoes on the ceiling of the Sistine Chapel has left visitors in awe of the work's original majesty -- notably the brilliance of the blue that graces the Last Judgment's sky. Recent investigations into this shade of blue -- ultramarine blue -- have brought to light the pigment's tendency to fade. Researchers at New York University and Pratt Institute now have the answer to why it fades.

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Keywords: researchers, ultramarine, blue, fades, researcher, fade

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