Faded Sunflowers: Why Van Gogh’s Yellows Are Turning Brown


Walking the halls of one of the world’s great art museums, it’s easy to regard familiar classic paintings as eternal and unchanging. But this is not the case. Paintings are a mix not only of color but of chemistry—and chemistry changes. In some of Vincent van Gogh’s works, the striking, sunny yellows have faded and turned brownish, robbing the Dutch master’s art of some of its trademark intensity. So a European team of scientists decided to find out exactly what was happening on those canvases.

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