Guest:  Dr. Paul Spudis;  Topics:  Returning to the Moon, national space policy, lunar technology, Mars, 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: Russell Cox. Topics: The Lunar Initiatives Workshops. See www.lunarinitiatives.com. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.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: Louise Riofrio. Topics: Her book "The Speed of Light," the change in the speed of light, lunar return missions, & much more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.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. Jeff Bell. Topics: Space policy, commercial space, space advocacy, NASA human spaceflight program, the Cold War, and more. Please note that you are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, http://thespaceshow.wordpress.com. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Welcome to this classic vintage Dr. Jeff Bell 2.5 hour program! For those of you not familiar with Dr.

Guest: Dr. Neil DeGrasse Tyson. Topics: Pluto, planets, Disney, Kuiper belt, terrestrial planets, gas giants, NASA, human spaceflight, geopolitical drivers. Dr. Tyson returned to The Space Show to discuss his new book, "The Pluto Files: The Rise and Fall of America's Favorite Planet," which details the reclassification of Pluto from a planet to a dwarf planet. Dr. Tyson explains why this change was made and what the IAU action really means. You may be surprised to learn the decision is not binding! In the discussion, Dr.