Giulio Fanti is associate professor of mechanical and thermal measurements at the the University of Padua, Italy. He was a founding member of the Interdepartmental Center for Space Studies and Activities "G. Colombo", and a member of groups for important space missions. He has been studying the Shroud for more than 25 years and is the coordinator of the Shroud Science Group. He has published more than 200 works, many of them on the Shroud, including books, articles, and educational texts.

Robert Siefker graduated from the University of California, Berkeley, with a degree in Civil engineering on a U.S. Navy scholarship. After five years serving in the Naval Civil Engineering Corps, he pursued a civilian career in software development. He worked in the Turin Shroud Center of Colorado (TSC), headed by Dr. John Jackson, leader of the Shroud of Turin Research Project (STURP). He built a website for TSC and is a co-author and the editor of the highly rated book on the Shroud entitled The Shroud of Turin: A Critical Summary of Observations, Data and Hypotheses.

1. The Miracle of the Holy Fire 2. Miracle of the Holy Fire, History and Religious Significance 3. Science Investigates the Holy Fire 4. The Holy Shroud and the Impossible Image 5. The Divine Photography 6. Conclusion