Guest:  Dr. George Sowers;  Topics:  Perseverance Mars Landing, mining lunar ice, lunar propellant, space resource utilization, space commercialization, property rights and more.

Guest:  Mike Snead;  Topics:  Space Solar Power, the  new White House Executive order for space resources & infrastructure, SSP for infrastructure, bring back Wright Patterson spaceplane design from 1980's and more.

Guest:  Daniel Suarez; Topics:  Daniel's new science fiction novel, "Delta-v." deep space mining, space economics, commercial space, policy and regulations, government space activities, risk taking, lunar return, Mars and much much more.

Guest:  Chris Carberry;  Topics:  Explore Mars Inc. 2018 workshop summary, Humans2Mars Conference May 2019, Moon-Mars cooperation, congress, NASA, public support, why go to Mars and much more.

Guest:  Open Lines with Dr. David Livingston; Topics:  Multiple listener phone calls on various topics including commercial space economics, LEO commercial space stations, the Gateway, lunar return, Moonwards, SLS and much more.