Guest:  Dr. Bruce Cordell;  Topics: Lunar return space policy in the context of trends based on Maslow Window opening opportunities plus more.

Guests:  Dr. Greg Matloff, C Bangs; Topics: We discussed their book "Stellar Engineering," terrestrial & possible alien megastructures & concepts for advanced civilizations outside our solar system.  Lot's more was discussed related to this topic.

Guest:  Linda Plush;  Topics:  Human spaceflight medical concerns, challenges, solutions, mitigations, R&D, budget issues, progress, engineering differences and more. 

Guests:  Dr. Michael Schmidt, Dr. Thomas Goodwin; Topics:  Pharmacogenomics in spaceflight, personalize spaceflight genetics for safety and better effectiveness, drug issues in space, the Moon, Mars, risk factors, metabolism and much more.

Guest:  Dr. Jeff Bell;  Topics:  Jeff talked about SpaceX, Mr. Musk, Mars, Moon, settlement, Stratolaunch, Dr. Spudis, Russian space & nuclear programs, the US Space force, Chinse space & Moon lander, hypersonic weapons, pancreatic cancer and more.