Les Johnson
Filmography
| 2019 | Speed (2019) · as Self - Nasa Marshall Space Flight Center |
| 2013 | How to Survive the End of the World · as Self - Author & Nasa Scientist |
| 2013 | Aliens: The Definitive Guide · as Self - Physicist, Nasa Advanced Concepts Office |
| 2012 | Evacuate Earth · as Self - Physicist, Nasa Marshall Space Flight Center |
| 2010 | How the Universe Works · as Self - Advanced Propulsion TechnologistEn Plex |