Guest:  Laura Montgomery:  Topics:  Planetary Protection, commercial space, human spaceflight regulations, commercial space law, space property rights and much more.

Guest:  Dr. Robert (Bob) Zubrin; Topics:  Paradigm shift with Falcon Heavy & SpaceX, a new way to go to the Moon, policy, SETI, ISRU, Moon, Mars, Drake Equation, scarcity economics, human expansion to space & more.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website, www.thespaceshow.com.  Comments and questions should be relevant to the specific Space Show program.

Guests:  Rachel Tillman, Al Treder;  Topics:  The Viking Mars Missions & The Viking Mars Missions Education & Preservation Project.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website, www.thespaceshow.com.   Comments and questions should be relevant to the specific Space Show program.

Guest: Dr. David Stevenson; Topics:  Planetary science, Earth's Moon, Venus, Mars, interstellar travel, advanced propulsion, robotics vs. HSF.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website, www.thespaceshow.com.   Comments and questions should be relevant to the specific Space Show program.

Guest: Robert Walker.  Topics:  Planetary protection and human spaceflight to Mars.  Please direct all comments and questions regarding specific Space Show programs & guest(s) to the Space Show blog which is part of archived program on our website, www.thespaceshow.com.   Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use.