Les Johnson

Les Johnson is a physicist, author, and NASA technologist. He is an elected member of the International Academy of Astronautics, a Fellow of the British Interplanetary Society and a member of the Science Fiction and Fantasy Writers of Ameria, the National Space Society, and MENSA.

In his day job, Les leads the development of advanced, in-space spacecraft propulsion technologies at the NASA George C. Marshall Space Flight Center in Huntsville, Alabama, leading many of NASA's efforts to develop solar sail propulsion for interplanetary and future interstellar travel. During his career at NASA, Les served as the Manager for the Space Science Programs and Projects Office, the In-Space Propulsion Technology Project, and the Interstellar Propulsion Research Project.