About Us

Test the Shroud Foundation designs, advocates and funds some of the most sophisticated scientific testing of the 21st century. For the last two decades it has supported a variety of scientific research and information relating to the age, origin and authenticity of the Shroud of Turin. It promotes these and many results in articles, books, videos, electronic and other forms of communication. The foundation is currently sponsoring the most promising and important scientific tests ever conducted in connection with the Shroud of Turin. It is also supporting a documentary with Salt River Production Group that will contain these results along with the most significant findings on the subject.

The foundation does not think the Shroud needs to remain a mystery or that its unique features are unsolvable. It argues that modern sophisticated testing in the field of nuclear science can definitively answer the questions relating not only to the provenance of the Shroud, but also the startling events that occurred to the man who was wrapped within this burial cloth.


photo - whiteMark Antonacci, Founder and President, Test the Shroud Foundation

Mark Antonacci is an attorney and author who has studied all aspects of the Shroud for 34 years.  He wrote The Resurrection of the Shroud (New York: M. Evans and Co., 2000), the most comprehensive book ever written on the Shroud until his landmark book, Test the Shroud, was published in 2015.

He gave the keynote address at the international conference held in Italy in conjunction with the Shroud’s exhibition in 2010 in which he proposed that a new series of sophisticated, minimally-invasive tests be performed on the Shroud at the atomic and molecular levels of this famous burial cloth.  He has written the leading scientific hypothesis that not only explains the Shroud’s body images, but also its radiocarbon dating, its excellent condition, its pristine human blood marks, their still-red coloration, the possible outer side imaging, coin features and flower images, skeletal features and all of its other unique features.

This hypothesis has been published in a peer reviewed scientific journal, and although it involves a miraculous event consistent with the resurrection, its occurrence can be scientifically tested.  He asserts that these proposed tests could prove whether the Shroud was irradiated with particle radiation; whether the source was the length, width and depth of the crucified corpse in the cloth; when this event happened; where it occurred; the age of the Shroud and its blood; and the identity of the victim.  He asserts this technology could also test all other natural or artistic explanations for the Shroud’s images or its radiocarbon dating.


arthur lindArthur C. Lind, Research Director
Physicist Arthur C. Lind is one of the world’s leading scientists on the Shroud of Turin. His most significant work underscores the connection between nuclear science and the Shroud of Turin. Holding a variety of positions as a senior scientist, manager and research director during four decades at McDonnell Douglas Aerospace and the Boeing Company, he worked on many of the nation’s top-secret defense programs. He has received numerous honors and awards throughout his distinguished career and published scores of papers in peer reviewed scientific journals. As the foundation’s long time Research Director he has concentrated on the radiocarbon dating of the Shroud and the cause of its images.



Bob RuckerRobert A. Rucker, Nuclear Engineer
Bob received nuclear engineering degrees from the University of Michigan and professional engineer certificates in nuclear and mechanical engineering.  He worked for General Atomics in San Diego for 24 years in core physics design of advanced nuclear reactors, and for 14 years at various DOE sites performing nuclear criticality safety analysis.  At the Shroud of Turin conference in St. Louis (Oct. 9-12, 2014), Bob presented results of his nuclear analysis calculations to explain how, based on nuclear considerations, the Shroud of Turin could be incorrectly C-14 dated to the middle ages and yet actually be the authentic burial cloth of Jesus from the first century.