Guest:  Dr. Michael Wall; Topics:  Dr. Wall's new book, "Out There: A Scientific Guide To Alien Life, Antimatter, And Human Space Travel (For The Cosmically Curious," and related topics including antimatter, time travel and more.

Guest:  Dr. Kirsten Siebach;  Topics: Mars geology, rovers, searching for life on Mars, planetary protection, forward contamination of Mars and much more. 

Guest:  Dr. Bruce Jakosky;  Topics: Terraforming Mars, CO2 on Mars, the Martian atmosphere and much 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. 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.

Guest:  Dr. Mackenzie Day;  topics:  Ghost dunes on Mars, dunes around the solar system, sand, Earth models, human Martian exploration, rovers, drones for Mars, planetary protection, liquid water on Mars and more. 

Guest:  Laura Montgomery; Topics:  FAA, Dept. of Commerce, NOAA regulatory issues, commercial space, space property rights, multi-lateral treaties vs. federal law, planetary protection & 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.