X-rays reveal hidden portrait under painting by Edgar Degas

False color reconstruction of Degas’ hidden portrait (detail). The image was created from the X-ray fluorescence elemental maps.(Scientific Reports)
Using specialized X-ray imaging, a team of researchers in Australia has revealed a striking painting of a woman’s face hidden under French Impressionist Edgar Degas’ Portrait of a Woman.
The researchers believe the auburn-haired woman in the hidden work — which they also attribute to Degas — is Emma Dobigny, who was rep