Art historians studying a painting by Pablo Picasso have uncovered the mysterious portrait of a woman, hidden beneath its ...

Nearly 125 years after Pablo Picasso painted one portrait, high-tech imaging tools have revealed a secret — another, earlier portrait concealed beneath.

Created by a team led by Aidan Meller, Ai-Da is an ultra-realistic robot designed to look like a human female ... three of the 15 portraits she had made of Turing, with a painting she had made ...