In 1984, three scientists dared to probe the mystery of life's origin by putting the prevailing theories of prebiotic and chemical evolution to the test. One of those men was engineer Walter Bradley. Today, Dr. Robert J. Marks joins host Andrew McDiarmid to share some of his personal anecdotes and professional insights about Dr. Bradley, a scientist, humanitarian, and trailblazer in the world of intelligent design who passed away this summer at the age of 81. A Distinguished Fellow of the Discovery Institute, Bradley taught mechanical engineering at Texas A&M University, Baylor University, and the Colorado School of Mines. His book, co-authored with chemist Charles Thaxton and geochemist Roger Olsen, deeply influenced prominent figures in the intelligent design research community like Stephen Meyer, Douglas Axe, and Jay Richards and helped to catalyze a new generation of inquiry into life’s beginnings. The Mystery of Life's Origin was re-released in 2020 as a new, expanded second edition.