James Bradley is Professor Emeritus in Biological Sciences at Auburn University. After studying biochemistry and cell and developmental biology at the Universities of Wisconsin and Washington, he moved to Auburn to teach cellular biology and direct graduate research on the biochemistry of insect eggs and embryos. He lives with his wife in Alabama where they show their grandchildren the wonders of nature through camping, fishing, gardening, and rockhounding. Jay Lamar is the Director of Special Programs for the Office of the Provost and University Libraries at Auburn University. She serves directly with the Office of Undergraduate Studies on special lectures and the common reading program and with the Department of Archives and Special Collections in the Ralph B. Draughon Library. For more than two decades she was director of the Caroline Marshall Draughon Center for the Arts & Humanities, where she helped forge partnerships between the university and the community. She is co-editor of The Remembered Gate: Memoirs by Alabama Writers. David T. King Jr. is Professor of Geology in the Department of Geology and Geography at Auburn University. He is also director of the Concepts of Science program at Auburn. He earned a BS in geology from the University of Louisiana-Monroe, an MS in geology from the University of Houston, and a PhD in geology from the University of Missouri-Columbia. He teaches integrated science, introductory geology, and sedimentary and impact geology courses. His research interests include the effects of extraterrestrial impact upon Earth history and the rock record.