Broadcast 3083 Open Lines

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Guest:  Open Lines with Dr. David Livingston; Topics:  We discussed a variety of space topics with listener phone calls and a few emails.  I also suggested a few topics at the start of the show.  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,   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

Welcome to our one segment two hour five minute Open Lines discussion.  I started the program by suggesting a few topics including light hearted topics such as the Lucas Museum of Narrative Arts being built in Los Angeles, the baking of scientifically accurate cake planets, plus radiation risks, ULA and Vulcan and more.  As seems to be the recent trend, Marshall was our first caller to talk about the Deep Space Gateway and Skylab ii.  I was unaware of Skylab ii.  Marshall also brought up the topic of SpaceX engines, the RSA 25, Vulcan engines by Blue Origin, additional launch system and their application to the next space station design.  Dr. Zubrin's comments on artificial gravity were also mentioned.  Marshall was after information on designing and the purpose of our next space station.  His comments were interesting so be sure to hear what he said.  Concerning growing food in space, I directed Marshall to the paper on this subject by Dr. Andrea Tziolas.  You can see his presentation here: If you Google his name and AGLuna, you will find his blog posts and articles on the subject.

John from Ft. Worth called next to continue the discussion started by Marshall re the Gateway which is now named the Lunar Orbital Platform-Gateway.  John's discussion soon led into a lengthy one about the SpaceX BFR as opposed to SLS.  He also talked about the Gateway being OK as it was all that could be afforded at this time.  John said he was skeptical about the proposed BFR test flight schedule plus related items. Doug sent in notes wanting clarification of what John was referring to re the BFR.  I read one of his emails while John was on air with us.  In addition, we talked about surface costs to the moon costing more than the Gateway concept but as Doug later pointed out, with a public private partnership to go to the Moon's surface, surface lunar exploration would likely be cheaper than the Gateway approach. 

Radiation was a topic of discussion.  Doug said the issue was complex.  Kim called next.  Kim had much to say about the discussions that had just taken place plus she talked about working with international space agencies re deep space and a follow on space station.  Later she said that the Tesla Roaster FH payload was brilliant with great PR, especially on the international scene.  It was then mentioned that regarding China, both SpaceX and China together have 60% of the proposed 2018 global launch market.

Tim called from Huntsville to ask about Ares V from Constellation and its relationship to SLS.  We talked about this for a few minutes.  He also wanted to do a comparison with the BFR and SLS.  Ft. Worth John called again to repeat that he was skeptical about the BFR.  This time around John mentioned that fact that we wanted to keep the ATK solid rocket boosters online for national security.  This comment came about when I brought up the fact that SLS, in the minds of Congress, SLS supporters, and the government, fills a national security need.  This concept was discussed with John so don't miss what was said.  Let us know your thought on the matter though if they are anything like before, the national interest idea for SLS will be rejected.  Doug sent in another email to John asking what he would do if the BFR was successful.  He wanted to know if John would then call for the cancellation of the SLS.  At one point as the program was ending, John expressed a concern of his that SpaceX was overextending and may incur financial difficulties or worse.  We had to leave that point for future Space Show discussions.

Please post your comments/questions on this show on our blog page for this program.  You can reach any of the callers through me if you would like to contact them.




Open Lines Discussion - All space topics welcome, talk about what you want to discuss

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18 Mar 2018 Dr. David Livingston
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