'Hidden' Van Gogh Painting Revealed (IMAGE) Delft University of Technology Caption The analysis of the painting 'Patch of Grass' by Vincent Van Gogh by means of an advanced form of non-destructive X-ray analysis allowed to reveal in unprecedented detail the original portrait, also by Van Gogh, over which the landscape was painted. This development will greatly facilitate the study of other 'over painted' works of art in the future. Credit DESY Hamburg Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.