Science to the rescue of art

Vincent van Gogh's "Sunflowers" are losing their yellow cheer and the unsettling apricot horizon in Edvard Munch's "The Scream" is turning a dull ivory.

Science shows there is more to a Rembrandt than meets the eye

Art historians and scientists use imaging methods to virtually "dig" under or scan various layers of paint and pencil. This is how they decipher how a painter went about producing a masterpiece – without harming the original. ...