I'm an entrepreneur within the NASA 'ecosystem,' skilled at identifying, assessing, and finding a pathway to development for new space technologies and systems. I know how to bring stakeholders with potentially divergent interests together for a common goal, using my extensive network of space professionals at NASA, Space Force, industry, universities, and even other governments.I am a recognized international expert on space technologies and systems, with focused expertise in advanced in-space propulsion and beamed power. I served as the Principal Investigator (Solar Sail) of NASA's Near-Earth Asteroid (NEA) Scout and Solar Cruiser missions, Co-Investigator for NASA's Lightweight Integrated Solar Array and anTenna (LISA-T) demonstration mission, and a NASA Co-Investigator for the privately funded Drag Racer electrodynamic tether propulsion demonstration mission. Successfully formulated, proposed, and personally led >$500M of space propulsion technology projects and missions (including winning highly competitive proposals):- NASA In-Space Propulsion Technology Project- NASA Interstellar Propulsion Technology Project- The Propulsive Small Expendable Deployer System Project- The Near-Earth Asteroid Scout mission- The Solar Cruiser missionNASA MSFC Formulation lead for multiple other space technology projects, including:- Nuclear Systems Initiative- Nuclear Thermal Propulsion pre-project- Planetary Sunshades for climate change mitigationMember of the International Advisory Board for The Journal of the British Interplanetary Society.Member of the International Academy of Aeronautics and AstronauticsMember of the Science Fiction and Fantasy Writers of AmericaFellow of the British Interplanetary SocietyHolds three space technology patents.Advisor to the Interstellar Research Group, General Chairman of the first 5 Interstellar Symposia, and Program Chairman of the sixth - eighth.Author of popular science books about science and space exploration, including A Traveler's Guide to the Stars (Princeton University Press), Graphene: The Superstrong, Superthin, and Superversatile Material That Will Revolutionize the World (Prometheus), and Solar Sails: A Novel Approach to Interplanetary Travel. Author of science fiction for Baen Books, including The Spacetime War, Saving Proxima (with Travis Taylor), Stellaris: People of the Stars, Mission to Methone, On to the Asteroid, and Back to the Moon (with Travis Taylor), Going Interstellar (with Jack McDevitt), and Rescue Mode (with Ben Bova).