The method: Use every noninvasive technique known to art, and medicine (yes, medicine), in a two-week blitz of discovery. The paintings conservator at the Mauritshuis Royal Picture Gallery says: “The expertise and the scientific equipment are coming from the whole world, converging on this one painting, this one masterpiece. … We’ll see how much information we can gain with the technology at our disposal in a very short period of time — two weeks, working 24 hours a day, day and night.”