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Dr. Mike Griffin, Tuesday, 9-16-14 September 17, 2014

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Dr. Mike Griffin, Tuesday, 9-16-14

http://archived.thespaceshow.com/shows/2317-BWB-2014-09-16.mp3

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Guest:  Dr. Mike Griffin.  Topics: Human spaceflight policy, political choices, space technology, Mars, Moon, Asteroids and 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. 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 http://www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed back to the program Dr. Mike Griffin.  During the first segment of our 90 minute discussion, Mike talked about human spaceflight (HSF) and the commercial space market.  He said exploration would be a government project or at least with government in the lead, especially if the commercial market was not there.  He threw water on the argument that our space policy was budget driven.  Instead, he talked about it being based on choices we make. It was not and is not about the money.  His comments throughout or discussion on this topic supported his argument.  He even said the cost of space for the U.S. taxpayer was around 15 cents/day.  This discussion evolved to one on the importance of leadership which we agreed was in short supply today.  Included in this discussion was Mike’s vision for our space policy & program, plus he explained its importance and value to our nation both today and for the future.  He spoke to the issue of what society wants and the choices it makes that shape our future.  Space should be part of our national policy debate and hopefully such a debate would enable quality choices to be made that keep us on the leadership edge with all nations.   Mike was asked who he thought would be next on the Moon and he said China.  We also talked about the private sector taking us back to the Moon with HSF.  He said that the private sector could do this, capital was not an issue, but for the private sector to do it there needs to be a closing of the business case which he did not see at this time.  SLS John called in & asked about space advocacy diversity which he said seemed to be at war with NASA & whatever the program of record might be.  Mike had much to say about this, especially about inefficiencies in government organizations and projects.  He also said if the private venture or industry cannot make money, then it should be a federal project. Many times during our discussion he said that there are things that a society should do just because they are hard & they don’t have to look good on the balance sheet.  John also asked about the RD-180 engine, Mike offered us his conclusion as to why we should be a new version of the RD-180 so that we do not continue being dependent on Russia for space related hardware, etc.  Later, he was asked about cislunar space development which he said should be a public enterprise.  He cited many examples and models supporting the public development of this important space infrastructure.  SLS was discussed.  Mike very clearly articulated the case for SLS today and again repeated that SLS future missions are about choices, not the budget.  Don’t miss his comments.  As the segment ended, Randy emailed a question asking for the rational & silver bullet for HSF.  In my opinion, Mike gave an excellent response to this question so don’t miss it.

In the second segment, Mike got some questions about NASA doing more R&D and even forming a NACA-like division or program.  We talked about NASA R&D, the need for a NACA-like program and more.  Dave, our caller, commented on leadership, then Bill in Denver emailed in a question about using fuel depots and smaller launch vehicles rather than heavy lift vehicles like SLS.  Again, Mike had much to say about heavy lift, including that while possible to do smaller vehicle launches., the numbers don’t pan out for efficiency.  You need to listen to this full discussion which also addressed some bogus assumptions regarding inefficient heavy lift decision making.  Nuclear propulsion and Vasimr came up, , then we again focused on vision that takes on big challenges because we can!  More was said on lunar colonies evolving to longer BLEO missions plus cislunar commerce, especially cislunar cargo missions.  Another listener asked about being dependent on the Russians for HSF to the ISS and if shuttle was retired too early.  Mike talked about having wanted to fly shuttle at a minimum rate annually until a new vehicle was operational.  We talked about the role of the congress and White House as compared to the role of the NASA Administrator.  Later, we talked about the role of public support and individuals petitioning congress on space policy.  Listen to his story about the Hubble repair mission.  I even asked if poorly written and fantasy driven letters to informed staffers helped or hurt the cause.  Listen for Mike’s response. In summary, Mike said his wish was that people would share is view that there are important things for society to do but that don’t look good on a balance sheet.  In the end, he said he was optimistic that his positive views on space would prevail and that when policy makers realized that China was going to put people on the Moon and what that would mean for the US, it would not be allowed to happen.

Please post your comments/questions on TSS blog above.

Robert (Bob) Meurer, ATK, Wednesday, 7-30-14 July 30, 2014

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Robert (Bob) Meurer, ATK, Wednesday, 7-30-14

http://archived.thespaceshow.com/shows/2290-BWB-2014-07-30.mp3

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Guest:  Robert (Bob) Meurer.  Topics:  ATK Space Systems and small satellites, SmallSat 2014, business trends & 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. 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 http://www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed back Bob Meurer, VP of Business Development, Commercial & International Programs and Director Civil Space Programs for the Space Systems Division, ATK Aerospace Group.  During our 60 minute one segment discussion, we explored the small satellite market, its trends, and development/evolution over the years to where the industry is today.  As you will hear, the industry has undergone tremendous growth, capital is now showing up, large players are taking note of entrepreneurial companies such as Skybox, Google and Facebook are in the industry among others.  Bob took us back to his start of the industry in 1986 which was also the first year of the SmallSat Conference.  This historical overview is really interesting because back then, nobody could contemplate what we see in the industry today, plus a small satellite back then bears practically no relationship to a small satellite and cubesat of today regarding specs, capabilities, size, performance, etc.  I asked our guest if the SmallSat conference had influenced the industry or if the industry was influencing the conference.  We had an interesting discussion about this. We talked about the impact of Silicon Valley on the industry and Bob referenced several companies worth noting.  Given the global business presence of our guest and ATK, I asked how political instability around the world impacted international business.  Don’t miss this discussion.  ITAR came up and Bob noted new rules starting Nov. 10, 2014 that shift some items to commerce control instead of state dept. control.  This should ease some restrictions on commercial activities.  Toward the end, we talked about on orbit servicing and the ATK commercial venture ViviSat for satellite life extension. Check it out at http://www.vivisat.com.

Please post your comments/questions on TSS blog.  You can reach Bob Meurer through ATK or me.

Dr. Henry Lambright, Monday, 7-7-14 July 8, 2014

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Dr. Henry Lambright, Monday, 7-7-14

http://archived.thespaceshow.com/shows/2274-BWB-2014-07-07.mp3

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Guest:  Dr. Henry Lambright.   Topics: Dr. Lambright’s book “Why Mars” & the politics, policy, history, & methodology of our Mars program.  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 http://www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed Professor Henry Lambright of Syracuse University to the show to discuss his excellent book “Why Mars: NASA and the Politics of Space Exploration.”  During the first segment of this 1 hour 33 minute program, Dr. Lambright introduced us to his book and what prompted him to write it.  Dr. Lambright then described three main motivating factors for having our Mars program starting with before NASA with the belief and cultural components suggesting some sort of life on Mars.  Next as a motivating factor dating back from the Von Braun time frame of humans going to Mars.  His third motivating factor had to do with political issues and competition.  Since we were talking about the possibilities of life on Mars, I asked our guest about Viking and the more recent pronouncements by Dr. Gil Levin who has been on TSS several times over the past few years.  Later, Dr. Lambright had many good things to say about our science and robotic program but said our human spaceflight program was in disarray.  Dr. Lambright got several listener emails & phone calls.  He was asked for the WHY behind human spaceflight and that led to a discussion about Big Science. I asked him to define Big Science which he did.  We talked about the NRC Pathways HSF study, then our guest talked about triggers leading to big events and progress, plus the more typical method of moving forward which he called slow evolution.

Jumping forward to our second segment, we talked about the Clinton years in the 90s for policy, Mars Observer & how that loss was turned into a plus for our Mars policy.  Other topics included astronaut risk taking, the void in leadership for space, Mars, and things in general.  Doug called to consolidate all the motivating factors and issues to just one, the need for more money.  He made a good case for this consolidation.  We also talked about the challenges for getting alternative theories seriously considered by NASA, Congress, and policy makers.  The NASA to NACA suggestion came up, we talked about the privates taking over LEO with NASA focusing on BLEO & advanced technologies.  As the program was ending, I asked our guest about the Syracuse student interest in space and Mars, plus our guest left us with an important closing comment.

Please post your comments/questions on TSS blog. If you want to reach Dr. Lambright, you can do so through me.  Finally, if you buy his book from Amazon, do so through the OGLF Amazon portal so that Amazon will contribute to The Space Show.  Instructions are in each archive write up and on the blog, plus both The Space Show and OGLF websites.

Dr. Doug Plata, Monday, 6-30-14 July 1, 2014

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Dr. Doug Plata, Monday, 6-30-14

http://archived.thespaceshow.com/shows/2271-BWB-2014-06-30.mp3

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Guest:  Dr. Doug Plata.  Topics:  Lunar Cots & cislunar space development, policy, Mars, & 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. 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 http://www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed back Dr. Doug Plata for this two hour two minute discussion.  NOTE THAT THREE SUPPLEMENTAL DOCUMENTS FROM DOUG WILL BE UPLOADED TO THE BLOG.  During the first segment, Doug introduced us to the topics he discussed at the recent ISDC conference in Los Angeles.  He talked about SpaceX and both the Falcon 9 & Heavy, Lunar ice, hollow ice, a concept he calls Moon for Mars, and more.  He also suggested that the Moon was not necessary for a Mars mission.  Additionally, while he certainly support a return to the Moon, he does not believe bringing back the VSE and Constellation is the way to do it.  I asked him how he got is interest in and start in space advocacy about 4 years ago.  Doug told us an interesting story, including how he was influenced by the LCROSS mission.  Michael Listner called to ask Doug about the WHY for the missions & projects he was advocating.  This was an interesting discussion though Michael got cut off due to a glitch at his end.  Tony wanted to know if Doug might be considering a start-up around his ideas in the near future.  Other first segment topics included ISRU, what makes space sustainable, and gaining the public interest and trust.  I asked him what among his ISDC topics was the least popular.  Listen for the answer.

In the second segment, Doug said people could find the lunar cots petition at http://www.lunarcots.com.  Doug addressed a question submitted by Tony regarding the use of water for radiation shielding.  Doug corrected some misunderstandings from his previous comment & went through the calculations in support of his conclusions.  We talked about a recent Mars One announcement for payloads for their planned 2018 mission.  Doug talked lunar cots, telerobotics, & benefits which he had sent me on an earlier show.  It is the three benefits documents that I will upload to the blog.  Doug had more to say on LCROSS & its impact on him.  He also told us about his newly made NASA HQ and commercial space contacts regarding lunar cots and cislunar.  As the program was ending, he talked about doing a special Flagstaff conference next year with a media event at nearby Meteor Crater.  Several times during our discussion, Doug cited Hops Blog for lunar and Mars lander/hopper ideas.  See http://hopsblog-hop.blogspot.com.

Please post your comments/questions on TSS blog.  You can reach Doug through me or his lunar cots page.

AboutLunarCOTS

LCOTS_Benefits-Commercial

LCOTS_Benefits-NASA

 

Dr. Paul Spudis, Friday, 6-20-14 June 19, 2014

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Dr. Paul Spudis, Friday, 6-20-14

http://archived.thespaceshow.com/shows/2266-BWB-2014-06-20.mp3

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Guest:  Dr. Paul Spudis.  Topics:  Dr. Spudis provided us with an overview and analysis of the NRC “Pathways to Exploration: Rationales and Approaches for a U.S. Program of Human Space Exploration.”  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 http://www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed back to the show Dr. Paul Spudis to discuss the NRC Human Spaceflight Study report recently released. You can download the report for free at http://www.nap.edu/openbook.php?record_id=18801.  Please note that this program was broadcast and recorded live on Wednesday, June 18, 2014.  It is being archived on Friday, 6-20-24 as there will be no live show on Friday due to the host travel schedule.  During the first segment of our 1 hour 36 minute program, Dr. Spudis first walked us through the NRC nearly 300 page study, hitting the highlights, raising questions, talking about what was good in the report and disappointing in it.  We talked about the rational for human spaceflight, for Mars, also the Moon.  We noted the absence of economic development in the report and this gave Dr. Spudis several openings to talk about his ideas for cislunar economic development.  Listeners asked lots of email questions ranging from budget issues, to SpaceX and rocket reusability.  Paul described much of what the study suggested as a form of “Apollo to Mars.”  Near the end of this segment we talked about public/private partnerships and learned that the Pathways study was only addressing public programs.  A listener asked Dr. Spudis what he thought the impact of the study might be and sitting on a shelf somewhere seemed a plausible answer.

In the second segment, Dr. Spudis focused on the response to the report and ways to actually develop a quality space program.  He talked about the need for a space transportation system, space infrastructure, and to use an incremental approach.  Robotics were discussed, we talked about the space media, and Dr. Spudis reminded us a few times that if there is no infrastructure, there can be no institutional use and capability.  We also compared the Apollo period and JFK’s goal for the Moon compared to now.  Its an interesting discussion, especially since we no longer have many of the skill sets we had back then.  The value of the Moon and commercial space came up & we talked about promoting the value to policy makers.  In supporting his incremental approach, Paul referenced a bit of US naval history.

Please post your comments/questions on TSS blog.  Check out Paul’s blog, http://www.spudislunarresources.com.  You can contact Dr. Spudis through his blog or me.

Dr. Doug Plata, Sunday, 3-16-14 March 17, 2014

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Dr. Doug Plata, Sunday, 3-16-14

http://archived.thespaceshow.com/shows/2208-BWB-2014-03-16.mp3

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Guest:  Dr. Doug Plata.  Topics:  Selected trades for the Cis-Lunar One Transportation Architecture as developed by Dr. Plata.  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. Please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed back Dr. Doug Plata to the show to discuss his selected trades for his Cis-Lunar One Transportation Architecture.  You can find Doug’s Choices of Selected Trades document on The Space Show blog at http://thespaceshow.wordpress.com under the summary for this particular program and date.  In the first segment of our 2 hour 6 minute discussion, Dr. Plata started out giving us an overview of his project, mostly by reading to us the “Overview of the Cis-lunar One Architecture” which is part of his document on our blog.  In addition, Dr. Plata wants your feedback regarding his project, including constructive criticism.  You can email Dr. Plata at dougspace007@gmail.com.  After discussing the project overview with us, Doug started addressing the trades listed in his document.  We started with Trade 1 Launcher.  Doug went through all of his considerations for launchers, was clear that he was not ruling any particular rocket out of the question.  Make sure you note his “Table1: Choice of Launcher & Fuel.”  The led us to discussing payload issues for the mission.  Also note that Doug has named his lunar craft the Condor upper state LL as you will see that name show up throughout our discussion.  Doug then went to Trade #2 and discussed propellant choices.  Note his Table showing the specifics of his Choice of Fuels assuming 53 tons at LEO and a 15% dry mass.  He received several listener questions, including questions about where to on the Moon.  See Trade 8 Initial Landing Sites for his choices and reasoning.  We skipped to Trade 12 Power in Shadows.  He discussed power options in some detail and went through the four options listed in this trade.  Mary Beth sent in some questions asking Doug about his propulsion discussion and Marshall called in with a series of questions about ice and the regolith.  Doug then took us to Trade 17 Repairs.

In our second segment, Doug started with Trade 17 repairs, focusing on redundancy, spare parts, & surface equipment easy designs.  Later in the segment, Dr. Plata was asked about lunar dust and maintenance/problems for the equipment.  A listener emailed him about market possibilities, our guest fielded other listener email questions and then Doug addressed Trade 9 Landed Configurations including belly landings and tail landings. Trade 14 Surface Equipment was discussed, then John called in to talk about a needed detailed lunar surface survey.  I asked our guest for his detailed cost projections for his mission followed by his next step in promoting his architecture.  He talked about having called his Congressman, Representative Mark Takano.

Please post comments/questions/feedback on TSS blog per above.  You can also email Dr. Plata at his above email address, plus its on his trade document which is on TSS blog.

Rick Tumlinson, Sunday, 2-9-14 February 10, 2014

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Rick Tumlinson, Sunday, 2-9-14

http://archived.thespaceshow.com/shows/2183-BWB-2014-02-09.mp3

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Guest:  Rick Tumlinson.  Topics:  Commercial space ventures, space advocacy, DSI, Orbital Outfitters & 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. 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.

We welcomed Rick Tumlinson back to the show for this 1 hour 53 minute program to discuss Rick’s commercial space ventures, space advocacy, NASA, space development and exploration challenges & methods for moving the “revolution” forward.  In the first segment, Rick opened up with updates for Deep Space Industries (DSI), asteroid mining, NEO defense, and more.  We also talked about Rules of the Road and possible industry regulation that the FAA is now talking about.  Much time was spent on possible NEO impacts.  We also started discussing the “opposition” to commercial space and new space directions over traditional aerospace programs and directions.  Following our discussion regarding DSI, we turned to another of Rick’s entrepreneurial companies, Orbital Outfitters.  Rick talked about their new & advanced spacesuit design version IS3, their opening R&D offices in Midland, Texas, plus he mentioned upcoming news with which the company will soon take public.  I asked Rick about modern day advocacy hurdles as compared to when the Space Frontier Foundation was first started.  This provoked lots of interesting comments and discussion points that crossed over into the second segment of our program.  However, he did say it was harder now so don’t miss the discussion and talking points.

In the second segment, we talked about the overall Texas commercial space development strategy, possible new spaceports for Texas, and their understanding of how the space industry is changing and becoming profitable.  We also talked about his most recent Huffington Post Op-Ed which will appear within a few days which was a reply to a Slate.com article by NYU Journalism Professor Charles Seife titled “What Is NASA For.”  You can see the article at
www.slate.com/articles/health_and_science/mysteries_of_the_universe/2014/02/nasa_s_mission_its_search_for_meaning_has_limited_its_science_and_damaged.html.  While Rick pointed out the problems with the article, he also talked about the author’s perspective being valid.  Don’t miss this discussion.  We also talked about public/private partnerships with Doug & the need to be commercially profitable. Lots was said about HSF to Mars and Deimos, plus returning to the Moon.  Rick also talked science & robotic missions along with HSF missions.  As the program was ending, Rick talked Big Picture with us and being caught up in space advocacy battles & the path forward.  He talked about culture, space exploration & development benefits for all of humanity, benefit sharing, and more.  He repeated many times that we are at the cusp, a turning point, a paradigm change moment.

Please post your comments on TSS blog.  Rick provided his email address for contact during the show or you can reach him through me.

Classroom with Drs. John Jurist & Jim Logan, Tuesday, 12-17-13 December 16, 2013

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Classroom with Drs. John Jurist & Jim Logan, Tuesday, 12-17-13

http://archived.thespaceshow.com/shows/2145-BWB-2013-12-17.mp3

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Guests:  Dr. Jim Logan, Dr. John Jurist.  Topics: This was a Classroom show on radiation issues for deep space travel, Mars and Moon settlements.  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.

We welcomed Dr. Jim Logan and Dr. John Jurist to this special 2.5 hour Space Show classroom in-depth discussion on space radiation. We focused our discussion on deep space, Mars, the Moon and BLEO missions. Note that on both The Space Show blog (see above) and The Space Show Classroom blog (http://spaceshowclassroom.wordpress.com),  Dr. Jurist has a Power Point presentation on radiation.  During the program, our guests referred to specific slides that you will want to check out.  In our first segment, Dr. Logan started out by telling us about his interest in the subject, why he has been writing a paper on the subject for publication, and how this Classroom show came about.  He cited our short duration spaceflight experience, the Apollo missions, Space Shuttle flights, and then how things started to change when we had six month ISS visits.  Dr. Logan also made it clear that space was not a benign emptiness type of environment.  He said the reality was that interplanetary space was a sea of disruptive ionizing radiation wrecking havoc on biologic systems.  We moved forward in our discussion from that point.  We talked about the findings of the MSL RAD instrument regarding radiation on the way to Mars and on the surface of Mars.  Both John and Jim spent some time putting the RAD numbers through analysis to let us know what this means for human missions to Mars.  We talked shielding, possible materials, passive and active.  We talked extensively about water and the use of hydrogen as well for shielding.  Our guests addressed the two types of radiation, the GCR (galactic cosmic rays) and the CME/solar flare.  Here, John suggested listeners look at his slide 13 as we talked about protons and neutrons.  Jim said there was no magic bullet and talked about shielding effects of Earth’s atmosphere.  Pay attention here as Jim introduced us to the  RP scale.  For being on the surface, he said nothing less than RP100 would suffice.  For the vehicle, an RP5 was required.  John introduced us to career limits for radiation for men and women astronauts of different age but the career limits are for LEO and not BLEO.  BLEO limits are expected to be more restrictive when made public in April 2014.  Earth Mars transit times were discussed, especially in the context of Brian’s email that suggested a 180 day transit time.  Both our guests said that was unlikely with chemical propulsion and all of us again stressed the need for nuclear thermal propulsion.  Microgravity was talked about, especially in the context of side effects due to the radiation environment.  Jim then brought up the EVA subject and spacesuits.  Briefly, Jim said that quite possibly the ISS construction represented the zenith of EVAs which may become a thing of the past.  Don’t miss why he said this plus his description of serious spacesuit limitations.  We talked about life support to Mars and here Jim suggested we should use Open Loop! Again, listen to the rational behind this recommendation.  Don’t miss what our guests said about theories & movies making it sound easy to go to Mars and that the radiation would be nothing more than just a few more cigarette packs a year.  Our last topic addressed informed consent issues.

In the second segment, I asked our guests for a readiness timetable were there sufficient funding and technology advancements.  I also inquired if Russia, China, and others assessed the radiation risks in a similar way to the U.S.  We then talked about radiation and space pregnancy, fetus development, birth, and informed consent for the fetus, a baby, and a child under 18.  Ethical issues regarding child birth and space pregnancy were talked about as well.  Curt had sent in email questions which our guests answered, especially about drinking irradiated water and microgravity DNA damage & what this may mean for radiation effects.  Next, I asked Jim and John to tell us their 2-5 steps for the start of designing a Mars human mission.  Jim went first and listed Day 1 and Day 2 activities, John listed his top three priorities which were different than those suggested by Jim.  Don’t miss this discussion as its very instructive as to how to do or at least start mission planning for a human mission BLEO.  Roger sent in a question asking if the crew should be senior citizens since they have more resistance to radiation.  Don’t miss what our guests said about this idea.  It may surprise you.  Our next topic was would going to Deimos be easier.  Yes, it would but it would be a very different kind of human  mission.  Jim had some great comments about Mars gravity.  Briefly, he said it was the “best.” Later, when asked to compare the Moon and Mars, our guests said lunar radiation was worse than Mars.  Also, the Mars atmosphere does provide limited shielding while there is no such thing on the Moon.  Jim had earlier talked about a sphere being the perfect shape for an interplanetary spaceship.  Shelia emailed in wanting to know if heavy lift made a difference and if the sphere was so good, why were capsules being used? Don’t miss the response.  We then talked about the complexities of rendezvous and docking, especially in the context of fewer launches (heavy lift) as compared to many more launches (smaller rockets).  Near the end, I asked our guests if either thought our nation, the public, NASA, our leaders and politicians were sufficiently motivated to do a human Mars mission.  Jim did not think so and had much more to say in reply to this question.  John was more pessimistic.  Both thought it was more likely that the private sector would mount a human Mars mission rather than our seeing a government mission, but raising the needed capital might turn out to be a show stopper.  The three of us then talked about what it was like growing up in the 40’s, 50’s, and 60’s as compared to today.  John and I (John is a bit more than 2 years older than me) were probably more harsh than Jim in our assessment of today, but we all realize that the younger generations will be taking us to space, building the next smartphone and more. I talked about my visits to Google, Apple, SpaceX, etc. and the excitement in the air in belonging in their work forces which does not seem to exist with NASA. This opened the door for Jim to put it on the line about his NASA experiences and the potential opportunities providing NASA can somehow reorganize.  He did not think the type of reorganization he was talking about would happen.  Both our guests left us with excellent takeaway points and concluding pearls of wisdom.

Please post your comments/questions on the blogs. You can reach either of our guests through me.

                                                  Radiation Biophysics and Human Spaceflight

Bruce Pittman, Monday, 12-16-13 December 16, 2013

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Bruce Pittman, Monday, 12-16-13

http://archived.thespaceshow.com/shows/2144-BWB-2013-12-16.mp3

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Guest:  Bruce Pittman.  Topics:  Commercial space, new technologies, emerging space industries.  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.

We welcomed back to the show Bruce Pittman for a 1 hour 23 minute far ranging discussion on commercial space and related topics.  We started our first segment with the Planetary Sustainability Initiative.  More about this is available on the Sustainable Silicon Valley website, www.sustainablesv.org/ssv2013/index.php.  Bruce shared with us stories from the recent conference, including the fact that California Governor Jerry Brown attended and was involved in the discussions.  From this program, we talked about new technologies that could benefit life support for deep space missions including Mars as well as space technologies that could be used here on Earth.  Another example cited was the Bloom Box by Bloom Energy (www.bloomenergy.com).  Bruce also mentioned the SpaceX Raptor engine designed to use methane for BLEO missions.  In talking about 2013 commercial space, Bruce cited the successful end to the COTS program and we talked about emerging business opportunities on the ISS.  He also mentioned a change toward commercial space investments in the attitude of VC types in Silicon Valley.  In addition, he mentioned the blossoming cubesat and nanosat industry.  The Moon came up, especially in light of the recent Chinese lunar robotic lander and Bruce talked about the developing lunar and commercial space private ventures underway in the U.S. now.  Next, our guest was asked about public/private partnerships and here we had quite the discussion, especially with regards to some saying more government oversight was needed for commercial ventures.  Dave called in to continue the public private partnership discussion in light of the NASA Advisory Council and consideration toward applying such partnerships to heavy lift vehicles.  Bruce brought up the potential game changing technology for launch vehicle reusability.

In our second segment, our guest talked about the excitement ahead for 2014 given the advances with the suborbital companies, the potential start of space tourism, and more.  We talked about the Google Solve For X program focusing on fusion energy.  Bruce mentioned advances with LENR. Doug called to talk about the Space Act Agreement and budgeting issues for space and the private companies.  We concluded our discussion with a preview glance at the 2014 ISDC Conference to be held in Los Angeles in May.  The last listener question dealt with Mars One and Inspiration Mars. Bruce offered a few comments on both program.

Please post your comments/questions on TSS blog above.  Bruce Pittman can be contacted through me.

Open Lines, Tuesday, 11-12-13 November 13, 2013

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Open Lines, Tuesday, 11-12-13

http://archived.thespaceshow.com/shows/2120-BWB-2013-11-12.mp3

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Guest:  Open Lines with Dr. David Livingston.  Topics:  Listeners called in to discuss a wide ranging set of topics from propulsion, SLS, Lunar COTS, STEM, and 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. 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.

Welcome to this 2 hour 2 minute Open Lines discussion.  Jeff was our first caller regarding propulsion, SLS, Orion, SRBs, ATK, advanced technology as compared to existing or old technology, composite materials, and much more.  I also asked him about sequestration in the defense side of space.  Todd sent an email to Jeff to inquire what he thought about the possibility of an SLS cancelation.  We talked about the possibility of canceling the SLS project due to economic issues with the government.  Jeff also spoke about XCOR, ULA, Rocketdyne, pumps, and lower cost options with NewSpace companies.  Charles Pooley called in to talk about the Indian Mars mission, the 4 stage PSLV rocket, and his forthcoming book due out before the end of the year.  Tim sent in a STEM article & he called so we talked about the article but both of us did not think much of the author’s comments on the subject.  Next up was Doug from Southern California regarding articles about Bigelow and Lunar Cots.  The use of SLS was discussed for commercial missions or public/private partnerships and I parted company from his analysis and conclusions.  The articles suggested by Doug included www.parabolicarc.com/2013/11/12/50647 and www.newspacejournal.com/2013/11/12/bigelow-report-calls-for-use-of-cots-model-for-cislunar-transportation.  As frequent listeners know, Doug is a strong advocate of lunar cots.  I also asked him what the profitable commercial mission would for lunar cots.  Mostly Doug talked about selling rides to NASA except with the SLS, they would be using a gov. vehicle. It’s an interesting discussion.  What do you think about the ideas we talked about?  Andrew from Tucson was our last caller and we learned he has been busy with precision tool and engineering for rocket parts.  We also talked about the need for cultural changes in the country and he talked specifics in this area, not with generalizations.  We also talked about astronomy, career paths, and telescopes.

Please post your comments/questions on The Space Show blog above.  If you want to email any of the participants, you can do so through me at drspace@thespaceshow.com.

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