Sky Alert! / Springer Praxis Books (PDF)

Les Johnson is the Deputy Manager for NASA's Advanced Concepts Office at the George C. Marshall Space Flight Center in Huntsville, Alabama. He is also the co-author of three published popular science books, Living Off the Land in Space (Springer/Copernicus 2007), the 2008 PROSE Award finalist, Solar Sails - A Novel Approach to Interplanetary Travel (Springer/Copernicus 2008), and Paradise Regained - The Regreening of Earth (Springer/Copernicus 2009). He is also the co-author of the science fiction novel, Back to the Moon (Baen/2010). 

In the early 2000s, Les was NASA's Manager for Interstellar Propulsion Research and later managed the $100M In-Space Propulsion Technology Program. He has worked for NASA since 1990 and has served in various technical and management roles. 

Les is the NASA co-investigator on the Japanese space tether experiment "T-Rex" that flew in late 2010. He was the Chief Scientist for the ProSEDS space experiment, twice received NASA's Exceptional Achievement Medal, and holds 3 space technology patents.

Les earned his Master's degree at Vanderbilt University in Nashville, TN and his Bachelor's Degree from Transylvania University in Lexington, KY. He has numerous peer-reviewed publications and was published in Analog. He is a frequent contributor to the Journal of the British Interplanetary Society and a member of the National Space Society, The World Future Society, and MENSA.