Optical physicist John Delaney, senior imaging scientist at the US National Gallery of Art, In addition to ancient texts, conservation scientists have uncovered secrets in paintings, too. Optical physicist John Delaney, senior imaging scientist at the US National Gallery of Art, analyzed P ablo Picasso’s Mother and Child by the Sea (1902) using hyperspectral imaging and found an entirely different picture underneath. Organizations likeImaging science reveals hidden histories; it creates a window into the past we may haven’t looked through before. Maybe next time someone wants to check the back of the Declaration of Independence for a hidden treasure map, they’ll call a conservation scientist instead. Thankfully, imaging techniques and conservation science can help.