Les Johnson
Les is a physicist, award-winning science and science fiction author, and Chief Technologist at the NASA George C. Marshall Space Flight Center. His science fiction books include Crisis at Proxima (Baen 2024), The Ross 248 Project (Baen 2023), Saving Proxima (Baen 2021), Pluto: The Dark World (coming from Tor 2025), and more. Les’s popular science books include A Traveler’s Guide to the Stars (Princeton Press 2022) – now translated into 7 languages, Graphene: The Superstrong, Superthin, and Superversatile Material That Will Revolutionize the World (2018), Solar Sails: A Novel Approach to Interplanetary Travel, and others. In his day job at NASA, les is responsible for the development of the next generation of space system technologies being developed at NASA MSFC, from advanced space propulsion and power to human life support systems and lunar landers. Les served as the Principal Investigator for flight demonstrations of advanced space technology systems including solar sails, deployable solar panels and antennas, and more recently, space based solar power. Les is a member of the International Academy of Astronautics, the British Interplanetary Society, the Science Fiction and Fantasy Writers of America, and MENSA – and is the Program Chair of the Interstellar Research Group. He was a technical consultant for the movies Europa Report, Lost in Space, and Solis. NPR, CNN, Fox News, The Science Channel and The Discovery Channel have all interviewed Les about space and space exploration. He was the featured Interstellar Explorer in the January 2013 issue of National Geographic magazine and appeared there again in March 2019.