Why color changed in Van Gogh painting
Friday, September 14, 2012 - 11:01
in Paleontology & Archaeology
Parts of Vincent van Gogh's "Flowers in a blue vase" painting have mysteriously changed color over time, and now scientists have figured out why: A chemical reaction between the paint and a protective varnish supposedly applied to the painting after the artist's death in 1890 turned his bright yellow flowers an orange-gray color.