Dr. Travis S. Taylor heads up the cast of The Secret of Skinwalker Ranch and can be seen on The Machines that Built America on the History Channel. He has worked on various programs for the Department of Defense and NASA for the past thirty-plus years. His expertise includes advanced propulsion concepts, very large space telescopes, space-based beamed-energy systems, future combat technologies, and next-generation space launch concepts. Taylor is also the author of pulse-pounding, cutting-edge science fiction novels, including the highly popular One Day on Mars, Tau Ceti Agenda, and the groundbreaking Warp Speed series. He is a regular on the History Channel’s Life After People and The Universe series.

Les Johnson is a futurist, author, and retired NASA Chief Technologist at Marshall Space Flight Center. Publishers Weekly noted that “The spirit of Arthur C. Clarke and his contemporaries is alive and well . . .” when describing his novel, Mission to Methone. His most recent novels, The Spacetime War and Saving Proxima (with coauthor Travis S. Taylor), were published in 2021. He and Travis S. Taylor were also the authors of Back to the Moon and On to Mars. In his day job at NASA, Les has worked on the development of next-generation space technologies—including solar sails, which he believes will eventually take us to the stars. He has recently appeared on Fox News and the Ingraham Report as a commentator on the latest expedition to the moon, Artemis II.