Greg is a Senior Project Leader for The Aerospace Corporation covering Launch and Propulsion Technology Concept Development for the Civil Systems Group. Greg has been with Aerospace for the past 20 years and currently leads the company’s technical support for the NASA Marshall Space Flight Center’s Space Nuclear Propulsion Project. Greg’s experience at Aerospace includes many areas of launch system design, performance, operation and support with specific focus on large rocket engine and propulsion technologies. Greg is an expert in heritage, current and future space access systems, the design, performance and testing of large rocket engines, and has supported over 48 space missions as the upper stage propulsion lead. Greg also led may other projects including sounding rocket experiments for the US Air Force, development of rocket engine design software, evaluation of hypersonic propulsion evaluation and fusion propulsion concept development to name a few. For the past 30 years, he has been associated with the advanced propulsion community and has published numerous, award-winning papers on his independent research of faster-than-light travel, the construct of space-time, and a possible approach to grand unified theory. Greg is a Distinguished Lecturer and former Chair of the Nuclear and Future Flight Propulsion Technical Committee of the American Institute of Aeronautics and Astronautics (AIAA). He is also a former adjunct professor at Loyola-Marymount University in Los Angeles where he taught a graduate-level course in propulsion systems for both aircraft and spacecraft. Greg has been an avid private pilot for over 24 years and is a Certified Flight Instructor.