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Dr. James Dewar, Dr. John Jurist, Monday, 3-2-15 March 3, 2015

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Dr. James Dewar, Dr. John Jurist, Monday, 3-2-15

http://archived.thespaceshow.com/shows/2426-BWB-2015-03-02.mp3

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Guests: Dr. James Dewar, Dr. John Jurist. Topics: Nuclear propulsion, nuclear policy, technology and more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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. 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 Dr. James Dewar and Dr. John Jurist back to the show to discuss nuclear propulsion and rocket. During the first segment of our 1 hour 40 minute discussion, Both Dr. Dewar and Dr. Jurist talked about the nuclear rocket technology, fuel, cores, past experiences, and how best to modernize the nuclear rocket and move forward with new development. Most of the callers talked technology so this first segment is very technology heavy. Space attorney Michael Listner sent in emails suggesting it would never happen due to the regulatory side of things plus he provided us with the UN Committee on the Peaceful Uses of Outer Space policy on using nuclear power in space (www.unoosa.org/oosa/SpaceLaw/nps.html). Listener Kristopher spoke to our guests about core options and fuels. Check out this site that he sent us: http://www.projectrho.com/public_html/rocket/enginelist.php#ntrvapor. Toward the end of the first segment, I said that after the break the second segment would focus on what to do to make the nuclear rocket policy and to start the program and develop this form of advanced propulsion. Both Dr. Dewar and Dr. Jurist agreed.

In the second segment, we did focus on the need for leadership and organizational structure for developing the nuclear rocket and starting with nuclear propulsion. We had several callers and emails addressing how to sell a nuclear rocket program. Dr. Dewar talked about the economic benefits, jobs, opening up more of space to economic growth and access. I asked about chokepoints and both our guests suggested the biggest chokepoint was the absence of young, passionate, and competent leadership. Related issues that came included how best to get the support of congress as well as the American people, plus why a nuclear rocket was important and should be developed.

Please post your comments/questions on The Space Show blog per the above URL. You can reach either guest through me.

 

Dr. Bruce Cordell, Sunday, 12-7-14 December 8, 2014

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Dr. Bruce Cordell, Sunday, 12-7-14

http://archived.thespaceshow.com/shows/2370-BWB-2014-12-07.mp3

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Guest:  Dr. Bruce Cordell.  Topics:  Dr. Cordell uses his trend analysis & Maslow Windows to suggest a boom in space development & exploration.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 Dr. Bruce Cordell to the show for updates with his trend & Maslow Windows analysis suggesting a strong possibility for a boom ahead with a large space project.  During the first segment of our 1 hour 47 minute program, Dr. Cordell summarized his Maslow Windows theory over the economic history of the US showing how specific economic cycles lead to large, cutting edge projects approximately twice in a century.  He cited several examples but talked about the Panama Canal and our earlier space program culminating with Apollo and our lunar missions.  He said these projects are typically large exploration type projects, macro economic, and coming when there is a boom and the public is ebullient.  He said there are three precursors to the big project.  The three are economic, geopolitical, and space related.  Regarding the space precursor, he talked about the recent Chinese lunar rover mission and Chinese lunar orbiter and return mission.  He also said movies start tracking this too and he mentioned Gravity and Interstellar.  I suggested that many do not want a large government space project, instead opting for private projects and missions within LEO and even to Mars.  Dr. Cordell said it did not have to be a public venture and that it could also be a public/private partnership.  As a result of other questions, he said the next big space project might very well be a return to the Moon.  John from Ft. Worth called to talk about leadership issues, risk, and the lack of the 60’s spirit.  Bruce talked about the impact of the Sputnik moment.  John and Bruce continued their interesting conversation for the balance of the segment.

In the second segment, Bruce answered John’s question from before the break as to what may happen if China is the leader and commands the ebullience, not the U.S.  We also addressed BJohn’s question regarding China using older technology based on the Soviet space program while the US is cutting edge and would that not make a difference.  Don’t miss what Bruce had to say.  In the remaining minutes of the program, Bruce talked about his human spaceflight graduate class he teaches at USC in their Dept. of Astronautical Engineering.  The class will be taught again in the fall of 2015 and is available to qualified students as an online option.  As we were ending the show, I asked Dr. Cordell about timelines which he has connected to our 2016 presidential election.  He also said a major Apollo type project would need leadership from the US president.  I asked about a private sector leader and he had much to say about this possibility.  He mentioned that the economy over the next two years would be critical as we are not yet in a boom period.  He was unable to identify the political leader that would make this happen and said often during our discussion that JFK was not elected as a result of his space policy meaning that an interest in doing something great in space  might develop with a president after he/she is in office.

Please post your comments/questions on TSS blog above. You can reach Dr. Cordell through his website at http://www.21stcenturywaves.com.

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, https://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

Dr. Buzz Aldrin, Monday, 5-13-13 May 14, 2013

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Dr. Buzz Aldrin, Monday, 5-13-13

http://archived.thespaceshow.com/shows/2007-BWB-2013-05-13.mp3

Guest:  Dr. Buzz Aldrin.  Topics:  Buzz talks about his Unified Space Vision, Mars settlement and his new book, “Mission to Mars: My Vision for Space Exploration.” Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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.

We welcomed back Buzz Aldrin to discuss his Unified Space Vision (USV) including Martian settlement, plus his new book, “Mission To Mars: My Vision for Space Exploration.”  Leonard David was the co-author of the book.  Visit www.buzzaldrin.com for more about the book and new, upcoming projects related to the book and the Aldrin vision. The book is available as hardback and as an e-book. If you use either of these links with Amazon to buy the book, Amazon will make a donation to The Space Show/OGLF: (hardback) www.amazon.com/Mission-Mars-Vision-Space-Exploration/dp/1426210175/ref=onegiantlea20 and (Kindle) www.amazon.com/Mission-Mars-Vision-Exploration-ebook/dp/B008EDPMB2/ref=onegiantlea20.  During our 94 minute program in one long segment, Buzz started out by describing his Unified Space Vision (USV) and its five main components, exploration, science, development, commercial, & security.  Buzz also introduced us to the United Strategic Space Enterprise (USSE) which forms a integral part of his Mars vision.  We discussed the role of China, India, Russia, the ISS, and why we should not engage in a Moon race with China.  In fact, part of the USV includes an international lunar post but not publicly funded by American taxpayers.  John in Hawaii asked about PISCES validating INSITU technologies, then Buzz was asked to explain his Mars cycler concept and orbits.  Following this discussion, Dr. Rowe called in to raise specific human factors health concerns regarding dust issues, Moonwalker astronauts EKG results, and down the road genetic modification for long duration spaceflight and settlement.  I then asked Buzz about the role of space tourism in his vision as well as the need for SLS.  Dr. Paul Deer called in from Cambridge in the UK to ask Buzz about risk taking.  Listeners emailed Buzz about the proposed NASA asteroid retrieval mission which Buzz said was a distraction.  Don’t miss his comments on this issue.  Another listener wanted to know why Phobos rather than Mars.  We talked about the ILDC and the concept of the international lunar base as a stepping stone for going on to Mars.  We also talked about more uses for the ISS, including inflatables, to support the USV.  Near the end of the show, John called Buzz to inquire about the space exploration contribution to student7 youth inspiration, STEM, and science development.  Buzz confirmed all of these as beneficiaries of space exploration and development.  I urge you to read this book and check back at the Buzz Aldrin website for updates and book/USV related projects.

If you have comments/questions from this show, please post them on The Space Show blog above.

 

Robert (Bob) Lancaster, Sunday, 12-4-11 December 5, 2011

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Robert (Bob) Lancaster, Sunday, 12-4-11

http://archived.thespaceshow.com/shows/1665-BWB-2011-12-04.mp3

Guest:  Bob Lancaster.  Topics:  Suggestions on space policy leadership and space advocacy leadership.  You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, https://thespaceshow.wordpress.com.  Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright. The Space Show/OGLF is now engaged in its annual fundraising drive. Please see & act upon our appeal at https://thespaceshow.wordpress.com/2011/11/21/space-show-2011-fundraising-campaign.  We welcomed Bob Lancaster to the program to discuss space advocacy and policy leadership ideas.  Mr. Lancaster started our discussion with an explanation and short backgrounder of his interest in space and its connection to his profession in military police and security work.  Based on his interests and background, along with the leadership and management training he has had in the Air Force, Mr. Lancaster sees ways that such leadership and management training could benefit the space cause and especially the advocacy community.  Bob then talked about the need for strategic planning and excellent communications.  With regard to communications, he made a point about making sure people outside the “choir” were being reached and included in the discussion.  The tendency within the space community with our blogs, conferences, etc. is to talk too much to each other and not enough with the people outside our community.  Preaching to the choir is not helpful.  Bob said that understanding the need to communicate outside our group is fundamental to exercising better leadership and management within the space advocacy community. As the first segment ended, Bob said there were three main reasons for human spaceflight and exploration:  1) To become a multi-planet species were anything to happen to the home planet; 2) Our space efforts enhance our communities here; 3) Planetary protection/self-protection regarding NEOs.  As we started our second segment, we followed up on Bob’s earlier suggestion of using a consulting or outside strategic planning group to assist in the leadership changes being talked about.  He said it was important for this planning company to be independent of the space community.  Don’t miss his discussion on this important point.  Another listener asked about the need for charismatic leadership and Bob said being able to communicate and move the population was important.  Others asked him about the Space Guard idea and he said that at some point something like the Coast Guard in space would be needed.  Another listener asked about our differences over issues such as SLS.  Bob talked about finding common ground to speak with a more united voice to the public.  In our final segment, John asked Bob what he thought the ideal space policy might be given the country being bankrupt or at least on the verge of it.  Bob’s reply was very good as he talked about making the case for growing the economy through space rather than fighting over how to divide up a shrinking pie or tax more to fund different parts of the stagnant pie.  Listen to what he said and tell us on the blog what you think.  We then talked about space being the leader or one of the few leaders in the country/economy that can take us into a growth future.  At the end of the program, we explored Bob’s thoughts regarding forming a separate military service out of Space Command which is currently part of the Air Force.  We also talked about national security space and Bob suggested that our civil space program was very much a part of our national security.  At the end, we talked about space as a priority within the budget given areas likely to be cut in pending budget cuts.  Please post your comments/questions on The Space Show blog URL above.