The blind-test method was abandoned, because the distinctive three-to-one herringbone twill weave of the shroud could not be matched in the controls, and it was therefore still possible for a laboratory to identify the shroud sample.

Why is the Shroud of Turin a negative?

Secondo Pias photograph showed that the image on the cloth is a negative: dark where it should be bright. This deepens the mystery, and Pia himself casually suggested that the shroud could have been made by some primitive kind of photography.

Is the Shroud of Turin the burial cloth of Jesus?

The Shroud of Turin is a 14-foot linen cloth bearing an image of a crucified man that has become a popular Catholic icon. For some, it is the authentic burial shroud of Jesus Christ.

Does the original crown of thorns still exist?

The French king Louis IX (St. Louis) took the relic to Paris about 1238 and had the Sainte-Chapelle built (1242–48) to house it. The thornless remains are kept in the treasury of Notre-Dame Cathedral in Paris; they survived a devastating fire in April 2019 that destroyed the churchs roof and spire.