Guest: Open Lines with Dr. David Livingston. Topics: Mars missions, space advocacy, SLS & NASA lunar missions. 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. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. Today's Open Line show was in two segments over 2 hours and 23 minutes. During the first segment, I put forth a few topics for discussion, including the NASA plan for returning to the Moon with two SLS launches over a year with the lander in orbit for about six months waiting for the second SLS flight. This topic seemed to be the prevailing topic for the entire show covering both segments as listeners wanted to talk about SLS, Falcon Heavy, heavy lift and depots in general, and the announced NASA plan. We also talked about the NASA asteroid missions as several listeners wanted to comment that they were less than enthusiastic about these missions. Of course the majority of the listeners were critical of SLS and the return to the Moon mission. Many wondered why such architecture, why so many years to build out the full heavy lift SLS, especially when looking back to what was accomplished with Apollo over half the time. In the second segment, Tim called in to talk about Mars One and SLS. Then Dr. Jurist called in questioning the SLS lunar mission, Congress, NASA, and the asteroid missions. John had to much to say on these topics so don't miss all of his comments. We also talked about Mars One and pregnancy/child birth in space, on Mars, on the mission, and the moral and ethical issues surrounding this issue. Before John got off the line, he wanted to know why so many space advocates dismissed hard science in their chosen space plans and projects. I attempted an answer but not sure it does justice to what I believe is a complex question with lots of subjectivity surrounding it. See what you think and post your comments on our blog. Near the end, Patrick called back about the space advocacy topic and talked about advocacy in an echo chamber but also what visionaries accomplish. This was also an interesting discussion. We ended talking about successful, forward thinking, crowd funding space missions today and we had much to say in support of the entrepreneurs behind these projects. Please post your comments and questions on The Space Show blog. You can contact any of the callers by email through me.