Only a few presentation charts and videos are available online.
May 2019. HAL5 monthly program on "Communicating About Space: Pitfalls and Priorities" with Bart Leahy, Freelance Technical Writer. [Read More] [Charts] [Video at Greg Allison's Personal YouTube Channel]
August 2018 Program #2. HAL5 special program on "Solar Gravitational Lens for Direct Imaging of an Exoplanet" with Dr. Slava G. Turyshev, Jet Propulsion Laboratory, California Institute of Technology.[Read More] [Charts] [Animation]
December 2013 Todd May, NASA Space Launch System (SLS) Program Manager will give us a status of the SLS as we approach end of 2013. The meeting will be held at ManTech NeXolve/Gray Research Auditorium. 655 Discovery Dr. in Research Park, Huntsville. [Charts]
October 2013 HAL5 monthly program on "Exploring Mars to Improve Life on Earth" with Marvin Hilton. [Charts]
October 2012 HAL5 Monthly program on NASA's exploration of Mars. "Roving Mars: Pathfinder, Spirit, Opportunity, Curiosity" with Dr. Barbara Cohen, MSFC planetary scientist. [Charts]
September 2012 HAL5 Monthly program on "Superturbine Windpower" with Mr. Ed Kiker. [Charts]