Scientists have recently discovered that the secret of the Mona Lisa may lie in the mysterious smile of the iconic painting. Using advanced imaging techniques, researchers have uncovered a hidden layer of paint beneath the surface of the masterpiece, which reveals the true face of the figure in the portrait. This new layer of paint, which is believed to have been painted over by the artist, Leonardo da Vinci, could explain why the iconic painting has such a mysterious smile. The researchers believe that the new layer of paint is the key to understanding the enigmatic expression of the Mona Lisa. By studying the painting in more detail, they aim to uncover the secrets of the mysterious smile and learn more about the life and times of the famous artist.

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source: Phys.org