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Gerald Driggers, Monday, 9-21-15 September 22, 2015

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Gerald Driggers, Monday, 9-21-15

http://archived.thespaceshow.com/shows/2557-BWB-2015-09-21.mp3

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Guest: Gerald Driggers. Topics: Artificial gravity & his Space Review Article “Reduced Gravity: The 400-kilogram gorilla in the room.” 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 back Gerald Driggers to discuss his August 10, 2015 Space Review article, “Reduced Gravity: The 400-kilogram gorilla in the room.” You can read & download this article at www.thespacereview.com/article/2802/1. During the first segment of our 1 hour 42 minute discussion, Gerald talked about the old concept to put a centrifuge on the ISS but of course that never happened. Much of the first segment our guest and listeners lamented the lack of attention to mitigating problems caused by microgravity by developing some form of artificial gravity as the standard mitigation tool. Gerald referenced several studies in support of the need for artificial gravity, including one only a year or so old. Listeners asked him about minimizing travel time to a destination, say Mars, as a way of mitigating microgravity issues. We talked about that but Gerald pointed out that at the destination you would still be in a less than 1 G earth gravity environment so what then? I asked Gerald if being stuck in LEO for decades might have contributed to the lack of NASA progress in this area. Kelly sent in an email asking several things, including a question about spin rates. Kelly also wanted to know why artificial gravity had been ignored for so long, suggesting the possibility that advocacy groups disregard it. I did not support Kelly’s contention as I have done many Space Show programs with advocates pushing for artificial gravity and even coming up with their own plans on how to achieve it. Gerald was asked about tethers. His response triggered a lengthy email from Joe Carroll on the subject which I will post for Joe on the blog for this program, then Joe called the show in the second segment. Gerald was asked about artificial gravity work going on in other countries & with other government space agencies. He also talked about the need to really just test for Mars and lunar gravity given the relationship of these numbers throughout our solar system to other planets and moons.

 

In the second segment, Gerald talked about his science fiction book series, “Earth Mars Chronicles” plus the long scale settlement of Mars. At this point Joe Carroll called to talk about his email, tethers, and the artificial gravity issue. Don’t miss the fine discussion with Joe and Gerald they brought up many facts about the situation, the 2010 National Space Policy and more. Joe referenced the Fresno Underground Gardens as a possible example of underground living which he said would be necessary due to radiation. There would be no on the surface living. He also talked about the need for a colony to expand internally and the challenges in setting up an ecosystem on another planetary body. Joe introduced us to other issues such as the need for a gut bacteria study on the ISS and the differences between genders in reduced gravity though that information is not gathered. Given that Gerald described himself as a Mars guy, not a Moon guy, I told him about the New York Times Op-Ed that appeared today, “Let’s Not Move to Mars” by Ed Regis. You can read the article at www.nytimes.com/2015/09/21/opinion/lets-not-move-to-mars.html?smprod=nytcore-iphone&smid=nytcore-iphone-share&_r=0. If you do read it and I hope you do, make sure to read the comments as well. Dr. Doug was the next caller. Doug and Gerald also had an interesting discussion as Doug suggested there was no need to do artificial gravity experiments in LEO, instead go directly to the Moon and do them there. This of course presumes we are going to the Moon. I talked with Doug about this as I think returning to the Moon, as much as I would like to see it happen, is still an unsupported assumption, especially if we are looking for the government to do it. This opened up a discussion about the private sector with Gerald saying he thought progress was more likely coming from the private sector than NASA regarding the issues talked about today. I pointed out that if we had private Bigelow space stations and somewhat affordable launch, then we might see this type of research undertaken if it was in the interest of a company to do so. Doug and Gerald continued their discussion which you don’t want to miss. As the show was ending, Gerald told us about his new e-book coming out on Kindle for just 99 cents on October 1, “Martian Sniper.” From what he said about it, it sounds like a winner so be sure to download and read it.

 

Please post your comments/questions on TSS blog above. You can reach Mr. Driggers through me or his website, http://earth-mars.com.

 

 

 

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Dr. Doug Plata, Monday, 7-13-15 July 14, 2015

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Dr. Doug Plata, Monday, 7-13-15

http://archived.thespaceshow.com/shows/2506-BWB-2015-07-13.mp3

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Guest:  Dr. Doug Plata.  Topics:  Achieving Early Earth Independence with space 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.  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. Doug Plata back as our guest to discuss his paper which is on TSS blog for your perusal, “Achieving Early Earth Independence Through ISRU and Sufficient Supply.  During the first segment of our 1 hou 45 minute program, Doug told us the genesis of his ideas and concepts culminating in his submitting his paper to the NASA Challenge InnoCentive Challenge (www.innocentive.com/ar/challenge/9933746).  After referencing the NASA Challenge, Doug started describing his ideas in detail.  Much of what he described he said was summarized in the Introduction of his paper.  We talked about both the Moon and Mars but Doug explained that the competition was focused on Mars so he also focused on Mars though he still supports the Moon and cislunar development as the rational and initial starting points.   Issues he discussed included supplies, types of potential habitats, the definition of and clarifications for mass independence including defining both self-sufficient and self-sustaining.  He also brought up the earth return option and more.  BJohn sent in several questions but his initial one asking about becoming 90% Earth independent led to a most interesting discussion.  While Doug’s paper does not have page numbers, check out Table 3, “Estimated Equivalent Mass Independence.  Doug took us through the critical numbers and his analysis so don’t miss this important discussion.

 

In the second segment, Doug suggested three rationales for the settlement.  One was to push technologies needed for sustainable living in space.  The second was the big one according to his perspective and focused on reducing the resupply costs for the settlement.  The third one was also big and focused on assuring survival of the human species.  He discussed each rational in detail.  As part of the discussion, he referenced a space settlement as an insurance policy for humans, he talked about the earth return option, radiation, GCRs,  and more.  He also showed that by leaving the crew on Mars for an extra year, the mission would be less costly.  Listen to his discussion about this and see if you concur with him.  Doug was asked about the previous program with Al Globus and LEO settlements, especially over the equator.  He said that such settlements, while potentially interesting, cannot be self-sufficient or Earth independent and his focus was on gaining Earth independence.  Again, don’t miss this discussion.  Gravity, artificial gravity and spin rates were discussed as was the concept of self-sustaining versus self-sufficient for a colony.   Doug advocated for using the word colony rather than settlement but I took issue with that, especially if one hopes to communicate with people including Congress outside the space industry.  As the show was ending, Paula asked Doug about the fact that space settlers may not want to achieve Earth independence and it seemed his work was formulated around the assumption that everyone wanted Earth independence ASAP.  This was a great last question and discussion.  Doug provided a good summary of today’s discussion as we closed the show.

 

Please post your comments/questions on TSS blog above.  You can reach Dr. Plata through his websites or me.

 

Al Globus, Sunday, 7-12-15 July 13, 2015

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Al Globus, Sunday, 7-12-15

http://archived.thespaceshow.com/shows/2505-BWB-2015-07-12.mp3

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Guest:  Al Globus;  Topics:  Space settlement in LEO and radiation over the equator.  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 back Al Globus to discuss his plan for LEO space settlement about 500 km above the equator to minimize radiation, shielding, and to improve the mass ratios to make settlement easier than in other locations.  During the first segment of our 1 hour 49 minute program, Al put forth his hypothesis that radiation over the equator was very light meaning that any space settlement would need minimal shielding or possibly no shielding.  This vastly improved the economics of developing and resupplying the settlement given its close proximity to Earth and the lower mass needed for the settlement and transportation.  This would be a “free space settlement” meaning it would be in orbit.  During this segment and the entire program, Al explained the radiation issues but you should read his paper on the subject, “Space Settlement the Easy Way.”  You can find this paper at http://space.alglobus.net/presentations/Easy.pdf.  Al spent lots of time explaining the radiation issues and talking about the initial settlements which may not have an economic purpose.  Al did go into the technical side of the radiation issues and his analysis for this location so don’t miss what he had to say about it plus as I suggested above, be sure to read his paper.  Later in the segment, he brought up space tourism and space hotels as a type of initial space settlement but one that would pave the way for actual settlements in LEO.  In the end, Al said that a LEO settlement is an easier way to get started with space settlement but stated many times that even a LEO space settlement above the equator would be challenging.  He did get several listener emails, some of which challenged his radiation analysis and the idea that little or no shielding would be necessary.  Al was also asked about space exploration but he was very clear that he was focused on space settlement.

In the second segment, we talked space policy, the U.S. congress and even the issue of space debris removal.  Marshal called to talk about radiation shelters from solar storms, Alexander wanted to know more about space solar power.  Adrian sent in a series of notes challenging Al and using the December 2004 Magnetar event.  Al was not familiar with it.  I inquired of the listeners to tell us what happened to the ISS during the event.  After the show, I got a follow up note from Adrian regarding the event and the ISS:  “Thanks to the magnetar’s great distance, the super flare posed no threat to humanity or Earth’s biosphere. The International Space Station was on the opposite side of Earth when the flare hit our planet, but even if the astronauts had faced the full fury of the blast, they would have received a radiation dose less than a dental X-ray. An SGR super flare’s pulse of high-energy radiation could seriously damage a planet’s atmosphere only if it occurred within about 6 light-years, according to Adrian L. Melott (University of Kansas)”  See more at:www.skyandtelescope.com/astronomy-news/the-brightest-blast/#sthash.VvmrtqKH.dpuf & www.skyandtelescope.com/astronomy-news/the-brightest-blast. I believe the point Adrian was trying to make was that no shielding even for a LEO settlement above the equator leaves the occupants w/o protection in case of an unexpected radiation related event. To this point, Al spent some time talking about risk and risk taking. Toward the end of the program, Al brought up the subject of space mining, Biosphere 2, and the size of the space station. During the show he also talked about artificial gravity and increased spin rates for people at 4-6 RPMs.

Please post your comments/questions on TSS blog above. You can reach Al through his website, www.alglobus.net.

Dr. Charles Limoli, Tuesday, 7-7-15 July 8, 2015

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Dr. Charles Limoli, Tuesday, 7-7-15

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What Happens to your Brain on the Way to Mars

Guest: Dr. Charles Limoli. Topics: We discussed space radiation in the context of his paper, “What Happens To Your Brain On The Way To Mars?” 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. Charles Limoli to the program for this 90 minute discussion on space radiation and astronauts, especially flying in deep space, going to Mars or back to the Moon, evening residing on the Moon or Mars. You can read his paper which has been uploaded to The Space Show blog for this program. During the first segment, Dr. Limoli outlined the basics of his research. Before going deeper into the topic, I asked him several questions about the use of rodents and mice for the experiments, the possible use of other animals, the constraints and limitations of radiation simulation experiments, plus how these radiation experiments and doses differ from humans getting radiation treatment for cancer or other medical problems. We had quite the discussion on rodent brains compared to human brains, animal experiments in general, plus the protocols used in his experiments which were all carried out at Brookhaven. By the way, Dr. Limoli is a space advocate, he has received NASA funding for years, and he and his team have a great interest in radiation issues for human spaceflight. Dr. Limoli then took time to tell us how the experiments were conducted. Some of the discussion is technical so I suggest you read his paper which has been placed on TSS blog. Dr. Limoli went into significant detail to tell us how they conducted the experiments, applied the low dose radiation to the subjects, and how they evaluated the results. Don’t miss his description and analysis of the experiments. He said the changes were subtle measured 6-8 weeks out but he also said future papers may show that the cognitive changes continued to happen over a much longer period of time. In response to one of my questions, he said there was no sign of recovery. The primary changes that were observed and reported in the paper had to do with cognitive impairment which we discussed in detail throughout this program. I asked our guest about age, gender, race, and cultural differences. I also asked if NASA was now doing or might do in the future some genetic screening to find those best suited for a high radiation environment. Space settlement risks were talked about as was childbirth and pregnancy. Dr. Doug from S. California called to talk about GCR shielding. He wanted to inquire about using the stuff on the mission, food, water, supplies, etc. for shielding. He suggested the strategic placement of the stuff to maximize shielding. Dr. Limoli did say this was all factored in but that GCRs are non-directional so they come in from everywhere so such “stuff” shielding would only be partially helpful in protecting against radiation. For now, it would have to remain an unanswered question pending getting more research data. In this discussion, Dr. Limoli did explain the components of GCR and what they do to the body and the brain’s cognitive ability.

In the second segment, we took listener questions including several from our friend Dr. Logan. One such question wanted to focus on how deep you would need to go into the Martian surface to equal the protection of Earth’s radiation shielding. Our guest was not sure of the actual calculation but estimated 4-5 meters. Tim in Boston sent in a note quoting what Dr. Zubrin said about Dr. Limoli’s research project per his critique of the paper published in The Space Review May 11, 2015. Dr. Limoli said that what Dr. Zubrin was saying was wrong regarding the details of the experiment. It was a very interesting discussion so don’t miss it. Rhonda wanted to know what Dr. Limoli would say to Elon Musk were he charged with consulting for Elon for his Mars plan and desired mission. Don’t miss what he said he would tell Elon. Later in the segment, I asked our guest to connect the dots with radiation issues and the other human factors medical conditions. This too proved to be an interesting discussion so don’t miss this one either. Charles was asked to talk in more detail about the observed cognitive changes and the actual tests used to reach their conclusions. In his closing remarks, he stressed how important continued research was and strongly urged listeners to support science research, write our congressmen and women, lobby for and advocate more research as it is the research that will give us more information to mitigate and resolve our spaceflight challenges.

Please post your comments/questions on TSS blog above. You can reach Dr. Charles Limoli through me.

Dr. Michael Schmidt, Sunday, 5-17-15 May 18, 2015

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Dr. Michael Schmidt, Sunday, 5-17-15

http://archived.thespaceshow.com/shows/2474-BWB-2015-05-17.mp3

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Guest:  Dr. Michael Schmidt.  Topics: Personal spaceflight medicine, Omics, targeted genetic countermeasures.  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 back Dr. Michael Schmidt for updates and more information regarding Personal Spaceflight Medicine. Note that the abstract referenced in the second segment has been uploaded to the blog for this show.  During the first segment of our 92 minute program, Dr. Schmidt defined personal spaceflight medicine for us & talked about targeting individuals for specific countermeasures to human factors risks for longer duration spaceflight safety.  We talked about artificial gravity and radiation with our listeners asking questions about both fields.  Our guest cited several examples to make his point.  At one point he talked about the current twin study underway on the year long plus ISS experiment with a Russian cosmonaut as well.  Questions were asked about using pharmaceuticals in space, how they might react with different people, and the distribution methods so far which are not great.  At one point, Dr. Doug emailed in asking about the use of omics for space travel issues and if in fact the use of omics would reveal even more questions that cannot be answered, ultimately delaying long duration HSF missions even longer than they are delayed now.  Don’t miss the guest response to Doug’s question.  Kris emailed in asking about the use of deliberate hypothermia to store Mars bound astronauts, and then another Doug question came in about selecting the best people based on omics for a mission.  Near the end of the segment, I asked our guest if he had done work for Mars One. He explained their limited capacity relationship which I assume ended.

In the second segment, BJohn asked about the possibility of astronauts sleeping in a small vertical centrifuge.  Dr. Rowe called to talk about the issue relating to pharmaceutical use in space.  he talked about delivery methods, malabsorption, etc.  Later, Dr. Schmidt brought up the damage done from sleep deprivation and showed how this is a potential problem for space missions.  Doug emailed in a question about GCRs and radiation, then Dr. Schmidt talked about his new paper on BDNF with his associate Dr. thomas Goodwin, “Protecting Neural Structures and Cognitive Function During Prolonged Space Flight by Targeting The Brain Derived Neurotrophic Factor Molecular Network.”  We talked about BDNF and spaceflight, exercises, mitigation measures, and more. He referenced Mars simulation, behavioral issues and more. You don’t want to miss this discussion.  Dr. Schmidt provided us with excellent closing remarks.

Please post  your comments/questions on TSS blog above.  You can reach Dr. Schmidt through me.

SCHMID~4

Erik Seedhouse, Monday, 9-15-14 September 16, 2014

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Erik Seedhouse, Monday, 9-15-14

http://archived.thespaceshow.com/shows/2316-BWB-2014-09-15.mp3

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Guest:  Erik Seedhouse.  Topics:  Erik’s latest book, “Beyond Human: Engineering Our Future Evolution,” & human modification for long duration spaceflight.  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 Erik Seedhouse back to the program to discuss his latest book “Beyond Human: Engineering Our Future Evolution.”  During the first segment of our 90 minute program, Erik talked about long duration spaceflight and critical issues in radiation and microgravity that he believes may force changes or modifications in humans in order to survive the trips and live on Mars or another celestial location.  He also talked about changes here on Earth such as advances in bioprinting, especially for organs.  Our guest spent lots of time on the radiation challenges, shielding, and the need for possible genetic modification.  Another point he made was for nuclear propulsion to cut the travel time to Mars and other locals down and make the voyage safer.  His favorite advanced propulsion system was Vasimr.  Dr. Rowe called in and brought up his concerns with the cardiovascular  (CV) system in space, a subject Bill has talked about on many Space Show programs.  Erik’s research did not focus on the CV system so he was unable to comment on what Dr. Rowe was discussing.  Next, Erik spoke about muscle atrophy and other microgravity challenges and suggested human modification would address those areas as well.  He also talked about animal and human cloning, then a listener brought up a subject from our recent open lines program re pregnancy, childbirth, and kids in space.  Erik suggested there might be sterilization as a requirement or abortive medication on board.  I commented that this would cause a firestorm with the public, especially on publicly financed missions.

In our second segment, our lead off topic was a Posthuman/Transhuman future.  Erik cited examples and also used the classic movie Gattaca as an example.  Listener Paul sent in an email about the ethics behind what Erik was talking about.  Erik was asked about the lifespan of humans that might live on Mars or the Moon, then Ben asked if long duration spaceflight and humans in space were an economic driver for human genetic engineering.  Erik said no, that it was a very small part of the industry with organ printing as one of the major drivers.  Todd inquired about exercise and this led Erik to talk about genetic screening to select the most qualified people for the spaceflight missions.  As we neared the end of the show, Erik told us about his next book about expeditions, then he talked about Virgin Galactic and XCOR.

Please post your comments/questions on TSS blog.  You can reach Erik through me. Also, when buying the book, use the Amazon OGLF portal so Amazon will contribute to The Space Show.

Drs. Jim Logan and John Jurist, Sunday, 7-13-14 July 14, 2014

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Drs. Jim Logan and John Jurist, Sunday, 7-13-14

http://archived.thespaceshow.com/shows/2278-BWB-2014-07-13.mp3

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Guests:  Dr. John Jurist, Dr. Jim Logan.  Topics:  EVAs, spacesuits, Moon, Mars, radiation, Aquarius HSF launch vehicle Space Enterprise Institute.  Please direct all comments & questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments & 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 &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 both Dr. John Jurist and Dr. Jim Logan back to the show to discuss spacewalks (EVAs), spacesuits, human missions to the Moon and Mars, to the Martian Moon Deimos, the newly created Space Enterprise Institute, & the new Aquarius Reusable Human Spaceflight water based launch vehicle.  During the first segment of our 2 hour 5 minute program, our guests started talking about EVAs.  Early in the discussion, Dr. Logan provided us with important & interesting statistics regarding EVAs, then we discussed the challenges with them and spacesuits.  We talked at length about the difference in EVAs and spacesuits for the Moon, LEO, asteroids, & Mars.  We also talked economics for spacesuits given the need for a specific spacesuit depending on the destination/mission.  We talked about new designs for one size fits all & for mitigating dust problems.  Jim talked about the medical complications regarding both lunar and Martian dust.  Our guests then suggested that EVAs will likely be phased out for robotic missions.  Doug asked several questions about this via email.  Also, Jim suggested that EVAs will evolve to the concept of Forward Deployed Humans in the Loop for Telerobotic Operations.  This concept was discussed several times throughout our program.

In our second segment, Jim started with an announcement about the Space Enterprise Institute (SEI).  When it goes live in the next week or so, I will announce it on the show so you can follow it  He explained SEI, its purpose & goals.  He then talked about the concept that both Jim and Dan Adamo have developed over the past few years, Aquarius which is a reusable water-based interplanetary HSF transport.  As soon as the SEI website is online, listeners will be able to download their peer reviewed paper for free.  During this segment, Jim talked about Aquarius, John added in some details, we talked about the need for nuclear electric propulsion and why, plus the role of water with this launcher.  Both our guests explained the advantages of Deimos for the early missions, plus the return shielding and reusability as the return goes to a lunar orbit using existing water.  Radiation shielding was talked about, including the needed water and needed Radiation Protection (RP) levels.  John pointed out one advantage of Aquarius was the use of an open loop life support system.  John in Ft. Worth called about the temperatures that Jim said were needed.  Jim explained the need for 3,000 degrees C.  Both guests offered closing comments about EVAs & the direction we might be heading toward the forward deployed humans concept.  Both guests said the telerobotic concepts discussed would reduce risks, timelines, & overall mission costs.

Post your comments/questions on TSS blog.  You can reach our two guests through me.

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, 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 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. David Brain, Friday, 12-13-13 December 14, 2013

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Dr. David Brain, Friday, 12-13-13

http://archived.thespaceshow.com/shows/2142-BWB-2013-12-13.mp3

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Guest:  Dr. David Brain.  Topics: Mars MAVEN Mission, Mars science.  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. David Brain of the NASA MAVEN Mission team to the program for a discussion about MAVEN and Mars science.  In the first segment of our 1 hour 22 minute program, Dr. Brain provided us with an overview of the MAVEN Mission which was launched on Nov. 18.  As we heard, it is on track for its orbital insertion around Mars on Sept. 22, 2014.  I asked Dr. Brain if he thought Mars orbits were getting crowded and also if he knew if there were traffic management issues in orbiting Mars.  We also talked about the Indian Mars mission, Mangalyaan, as it was launched a few days before MAVEN and will arrive shortly after MAVEN arrives at Mars.  Dr. Brain, in describing MAVEN, said it was going to answer two questions:  1) What happened to the atmosphere of Mars and 2) What happened to the water and where did it go?  We then talked about the absence of a Martian magnetic field but we learned that there are strongly magnetized rocks along the edges and such rocks are 10-20 times the magnetic strength of similar rocks on Earth.  Dr. Brain provided us with theories on this.  We extrapolated that it was possible for something similar to happen on Earth.  He also talked about magnetic fields, how one might generate a magnetic field on Mars & more.  This latter point was in reply to a listener question asking if terraforming included creating a Martian magnetic field.  Our next topic dealt with how these types of missions are developed, the hardware and scientific tool risk issues, the use of heritage hardware and instruments, program funding, and review panels.  Marshall called and talked about instrument redundancy, electronic improvements from mission to mission and more.  We also talked about sending data back to Earth using the Deep Space Network (DSN).  This brought up questions about private Mars missions using the DSN for their communications.

In the second segment, Doug called to ask how MAVEN was impacted by the government shutdown. Dave relayed the shutdown stories to us which were most interesting, especially since it went right up to the minute for possible mission delays of 18-24 months.  In fact, MAVEN did get an exemption from the shutdown but not because of its science.  It was exempted because of its function as a communications relay satellite.  Also in this segment, Dave responded to listener questions asking how the instruments are designed, tested, and protected for their trip to Mars so they would be sure to work.  Dave took us through the entire process for planning, designing, developing and testing hardware & operating components  over and over again.    This is a fascinating inside look at what is involved in a successful Mars, lunar, or planetary mission.  Doug then asked about methane on Mars and here Dave had much to say about competing methane theories and the latest findings from instruments on Mars including Curiosity.

Please post your comments/questions on The Space Show blog above.  Dr. Brain can be contacted through me.

Open Lines, Sunday, 6-30-13 June 30, 2013

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Open Lines, Sunday, 6-30-13

http://archived.thespaceshow.com/shows/2039-BWB-2013-06-30.mp3

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Guest: Open Lines with Dr. David Livingston.  Topics:  Blue Ridge Nebula Starline, radiation, Skylon, Falcon 9 Vandenberg, NEOs, & Asteroid missions.  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 of you interested in the opportunity to submit feedback on the NRC congressionally mandated Human Spaceflight Study, please go to www.nationalacademies.org/humanspaceflight.   Please remember that your Amazon Purchases Can Help Support The Space Show/OGLF (http://www.onegiantleapfoundation.org/amazon.htm).

Our program today was a 2 hour 5 minute Open Line discussion.  I started it out with some Space Show announcements, suggested topics for today’s discussion, then I opened the phone lines for listener participation.  Dr. Doug Haynes was our first caller. Doug is celebrating the tenth anniversary of Blue Ridge Nebula Starline (www.blueridgeairlines.com) and his sister site, www.bluenebula.com.  Dr. Haynes talked about his vehicles, missions, propulsion, AST, orbital, suborbital and all HSF, his issues with zero gravity, green space technology, spaceports with the Front Range Airport as well as Denver International. Follow our discussion about his vehicles and pods via his Blue Nebula website above.  Doug also told us about his books through the 3rd Wave Air Books which is linked to both his websites.  I did mention Doug’s very well known newsletter & how to visit his operation for those in and around the Denver area.  Our next caller was Dr. Doug Plata from Southern California to discuss space radiation and our Monday guest, Dr. Marcelo Vazquez.  Doug took us through several radiation risks and mitigation strategies.  We talked about radiation and the Mars missions plus what might & might not be appropriate regarding taxpayer money or the cash equivalent regarding helping a private company do a HSF to Mars.  Just before the break, questions came up about the upcoming SpaceX Falcon 9 Vandenberg launch.

In our second segment, Tim Weaver was our first caller to talk about Skylon.  There has been some recent press suggesting that the UK government my be interested in some funding with Skylon (www.sen.com/news/uk-pledges-fresh-support-for-revolutionary-space-engine.html).  We talked about the UK space interests and program along with the astronaut safety issue mentioned earlier and by Rand Simberg in his recent program.  John Hunt called in to talk about the Zubrin article on NASA’s asteroid retrieval mission, then he said he doubted anything would become of Skylon.  His last point pertained to astronaut safety per the Rand Simberg show and comments.  He suggested that since the government flies astronauts for national prestige, safety would be extreme given the potential prestige damage resulting from an accident.  Before the end, Doug sent in a note saying the Falcon 9 Vandenberg launch is currently set for Sept. 5th.

Please post your comments/questions on The Space Show blog.  You can reach any of the guests who called in today via their website or my email address.