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Dr. William (Bill) Rowe, Sunday, 8-31-14 September 1, 2014

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Dr. William (Bill) Rowe, Sunday, 8-31-14

http://archived.thespaceshow.com/shows/2307-BWB-2014-08-31.mp3

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Guest:  Dr. William (Bill) Rowe.  Topics:  Cardiovascular & other issues for long duration human spaceflight.  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 Dr. Bill Rowe back to the program to discuss cardiovascular issues for human spaceflight & EVAs, plus many other issues pertaining to long duration spaceflight.  Note that we experienced serious phone line issues with Bill about 12 minutes into the program forcing us to stop for repairs.  Evidently the fiber phone lines now serving Dr. Rowe cause broadcast equipment problems.  Bill was able to go to a neighbor’s house to do the show but you will hear some line issues plus unusual cuts as I spliced together part of his opening to the point we were able to resume with a good phone line.  Once past that point, there were no further phone line issues.  During the first segment of our 2 hour 11 minute program, Dr. Rowe introduced us to his discussion main points and we began using his website for references throughout the show.  It is important to be on his website and go where he points at various times in the discussion (see http://www.femsinspace.com).  While parts of the discussion relied on medical terms and descriptions, our guest did an excellent job of breaking it down for us non-medical types to easily understand the information he was sharing with us.  Among the issues we talked about were cardiac issues that don’t present symptoms, plus the problems with increased adrenalin secretion in the body which happens in space.  Dr. Rowe spent significant time discussing the adrenalin issues citing known astronaut examples.  In fact when talking about the adrenalin levels in space, he said that within five days of being in space the levels are twice that of being on Earth.  Another issue brought up was possible cardiovascular damage for excessive exercise and here he cited the research projects he had been involved in with marathon running athletes.  He strongly suggested the use of regularly taken electrocardiograms on the crews while in space.  Next, Dr. Rowe talked about EVA issues, specifically cooling.  He explained other risks and made the case for future robotic EVA missions instead of human mission.  Before the segment ended, he had much to say about exercise in space.

In our second segment, Bill reviewed for us his comments on oxidative stress and suggested we follow along with his website submarine model, http://www.femsinspace.com/Oxidative_stress.htm.  A listener then emailed in that the ISS did have an ultrasound on board which could be used for the purposes Dr. Rowe suggested (see http://www.nasa.gov/mission_pages/station/research/benefits/ultrasound.html).  Bill talked more about lunar dust toxicity plus magnesium and calcium usage in space and in general.  He referenced former astronaut Jim Irwin losing consciousness for a brief time on the Moon & he provided the reference for that fact.  Rodent research on the ISS was discussed, then he got a listener question about possible different health standards for government trained and fit astronauts as compared to space tourists and possible private sector astronauts.  Near the end of our discussion, space tourism came up and he pointed out risks for the middle age, overweight segment of the space tourism market.  Bill spoke to pharmaceutical use in space and the issues with it.  Just before ending our discussion, he pointed out that for Mars he thought an all female crew was best given the advantages they have over men.  He did explain his comment.

If you have comments/questions, post them on TSS blog above.  You can reach Dr. Rowe through his website or me.

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, http://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.

John Batchelor Hotel Mars, Wednesday, 4-16-14 April 17, 2014

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John Batchelor Hotel Mars, Wednesday, 4-16-14

http://archived.thespaceshow.com/shows/2230-BWB-2014-04-16.mp3

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Guests: John Batchelor, Dr. Haym Benaroya, Dr. David Livingston. Topics: NASA LADEE Mission. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Written 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. We do not permit the commercial use of any Space Show program or part thereof, nor do we permit Space Show programs to be edited, placed on YouTube, or other private channels & websites. Space Show programs can be quoted in news articles, papers, academic & research work but must be cited or referenced in the proper citation format. Contact Dr. Livingston for questions about our copyright and trademark policies which we do enforce.  This program is archived on The Space Show website, podcasting, and blog sites with permission from John Batchelor. Please visit the John Batchelor Show website for more information about this fine program, www.johnbatchelorshow.com. Remember, your Amazon Purchases Can Help Support The Space Show/OGLF (www.onegiantleapfoundation.org/amazon.htm). For those of you listening to archives on live365.com & rating the programs, please email me the reasons for your rating. This will definitely help improve Space Show programming. Thank you.

We welcomed back to Hotel Mars Dr. Haym Benaroya from Rutgers University. Dr. Benaroya discussed the NASA LADEE mission, lunar dust issues, the lunar surface, the importance our astronauts returning to the Moon and the Lunar Dust Experiment which so far has proven to be inconclusive regarding the questions it was to solve. Dr. Benaroya went over the toxic and corrosive nature of lunar dust to both humans and equipment, had similar things to say about Martian dust, and talked about how important it is for us to go back to the Moon. He also made the point that we should have a permanent settlement on the Moon and not just use it as a way station stepping stone to Mars, abandoning it again once we are on Mars. The three of us discussed the LADEE project in detail (as much detail as we could in this short segment). We also talked about its end which should come April 21 by crashing into the far side of the Moon.

Please post any comments/questions you might have on The Space Show blog. You can contact any of us through drspace@thespaceshow.com.

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.

Dr. Dava Newman, Friday, 1-31-14 February 1, 2014

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Dr. Dava Newman, Friday, 1-31-14

http://archived.thespaceshow.com/shows/2177-BWB-2014-01-31.mp3

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Guest:  Dr. Dava Newman.  Topic:  Dr. Newman’s BioSuit positive pressure space suit project.  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. Dava Newman to the program to discuss her positive pressure BioSuit spacesuit project at MIT.  During our 1 hour 1 minute single segment program, Dr. Newman took us through a brief history of positive pressure spacesuits up to and including her BioSuit version 4 project. For more information, please visit these and other websites: http://web.mit.edu/aeroastro/www/people/dnewman/bio.html; www.bostonmagazine.com/news/blog/2013/12/10/mit-biosuit-system-dava-newman;   http://mvl.mit.edu/EVA/biosuit and http://esd.mit.edu/Faculty_Pages/newman/newman.htm. We covered many topics, fielded numerous listener email questions, and learned much about the BioSuit as well as traditional spacesuits.  The history started with Dr. Paul Webb and his efforts from the early 70’s (Dr. Webb was a guest on TSS on Sep.t. 17, 2006), then we talked about the progress in materials, designs, and engineering leading up to the BioSuit.  Dr. Newman explained how flexibility and movement were possible in the BioSuit, how this reduced the amount of energy expended by the astronaut, and even reduced some of the thermal needs.  We also talked about repairs of the suit, then we spent much time talking about the life support and EVA pack plus the helmet.  As we learned, joints and concave parts of the body like the back of the knee do present problems but they believe they have solutions to these challenges by using special materials to fill in the void spaces.  At one point, Professor Newman was asked about needing different suits for orbit, the Moon, and Mars.  As we learned, the basic suit is the same for everything but depending on the mission, different life support and EVA packs would be available.  Then we talked about a suit for inside the vehicle or the ISS, the Variable Vector Suit.  Questions came in about how the suit works, closes up, and suit economics compared to the costs of traditional spacesuits and EVA suits.  Questions about radiation protection, lunar dust protection and more was asked, plus we talked about the possibility of using the basic BioSuit for space tourism flights providing the tourist is not outside the spaceship.  During our discussion, Professor Newman went over many of the pressure issues and requirements plus other technical issues for this suit.  We also learned that it could be made operational within 2-3 years of full up funding.

Please post your comments/questions on TSS blog above.

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

Dr. Bruce Damer, Tuesday, 7-9-13 July 10, 2013

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Dr. Bruce Damer, Tuesday, 7-9-13

http://archived.thespaceshow.com/shows/2045-BWB-2013-07-09.mp3

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Guest:  Dr. Bruce Damer.  Topics: Human NEO mission study & design project, asteroids, planetary protection & 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.  Please remember that your Amazon Purchases Can Help Support The Space Show/OGLF (http://www.onegiantleapfoundation.org/amazon.htm).

We welcomed Dr. Bruce Damer back to the show to discuss his 3D real time simulations, the human NEO mission study & design project, planetary protection, astronaut safety and much more.  Here are the websites Bruce mentioned on air:  www.damer.com, www.levityzone.com, and www.digitalspace.com.  In addition, later in our discussion Bruce also talked about a Dave Brody YouTube video that was relevant to our discussion.  You can find this video at www.youtube.com/watch?v=UAm9escDxu0.   In the first segment of our 1 hour 31 minute discussion, Dr. Damer talked about the renewed interest in asteroid projects within NASA and by others, especially after the Russian event a few months ago.  Dr. Damer had lots to say about a recent meeting he attended at AMES, budgets, and the renewed interest in the subject.  Listeners started asking him questions early on, including questions about docking with an asteroid with little or no gravity, the use of aerogel to collect micrometeorite particles, plus the recently announced commercial asteroid missions being planned.  Robots versus humans came up many times, Curt asked about the use of the ISS, prioritizing budgets, lunar basis, etc.  Doug called in regarding the incremental approach Dr. Damer had mentioned or as referred to in our discussion, stepping stones.

In the second segment, we talked about the designs on www.digitalspace.com and the Brody YouTube video per the above URL.  Also discussed was planetary protection with the use of the gravity tractor. We talked about needed lead times to interfere with a potentially dangerous NEO that might be headed for Earth,  then more questions came in about a lunar base and what Bruce thought to be more important, the lunar base, Mars, or the NEO mission.  Doug called in to discuss and challenge some of the mission planning ideas Bruce put forth, especially around trial and error, R&D, incremental development and long time lines.  Near the end, we talked about human spaceflight safety & the ideas put forth by Rand Simberg & others that we needed to take more risks, not make safety the extreme priority.  Bruce had many relevant & important comments on this subject.  Final comments focused on 50-100 years in th future with asteroid & other capabilities but only if we keep moving forward today.

Post your comments/questions on The Space Show blog above.  Email Bruce through his websites or me.

Dave Ketchledge, Sunday, 7-13-13 July 8, 2013

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Dave Ketchledge, Sunday, 7-13-13

http://archived.thespaceshow.com/shows/2043-BWB-2013-07-07.mp3

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Guest:  Dave Ketchledge.  Topics:  Mars Lander Choices.  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.  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).

We welcomed Dave Ketchledge back to the program to discuss Mars precision human spaceflight lander choices.  During the first segment of our 2 hour 13 minute discussion, we covered Dave’s basic thesis and analysis regarding landing large payloads on Mars and the need for very accurate and precise landings for the human spacecraft.  While at times the first segment was technical and perhaps complicated, it provided the necessary groundwork and foundation for our discussion during the second half of the program. During the first part, Dave explained the need for a precision human landing on Mars, the difficulties in doing that, the pros and cons of the various shapes to use for the human spacecraft, and why the Pershing 2 missile nosecone offered the best shape and design.  Dave cited his references for his analysis and conclusions.

In the second segment, we started with a listener question about the origin of the DC-X vehicle design as it was related to the analysis, conclusions, and explanations Dave provided earlier in the discussion.  Dave continued his comparison and analysis of the three potential vehicle designs, then I asked a series of questions sent in by listener Curt from the recently held Humans to Mars conference regarding issues in landing a large payload on Mars.  Dave also spoke about heavy lift and the need for an SLS type vehicle, speaking to the additional needs for using smaller launches. These needs include planning on replacement launches and payloads which must be figured into the costs as all the advance launches of supplies & materials to Mars will be mission critical launches.  The crew should be the last launch to the planet. Listeners both emailed in questions for Dave and additional listener phone calls were received.  Dave continued to reference the NASA Mars Design Study, work done by JPL, Dr. Robert Manning, and others. We talked about the Mars One program & how it might land its human crew on Mars.  We also talked about HSF to Mars policy &the absence of political leadership for a human mission to Mars.  Dave addressed media issues but largely stayed with the shape of the human spaceflight spaceship, the need for a precision landing, and what might work best.

Please post your comments/questions on The Space Show blog above.  You can email Dave at the address he provided on air at the end of the show.

Dr. William (Bill) Rowe, Sunday, 6-2-13 June 2, 2013

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Dr. William (Bill) Rowe, Sunday, 6-2-13

http://archived.thespaceshow.com/shows/2021-BWB-2013-06-02.mp3

Guest:  Dr. William (Bill) Rowe.  Topics:  Moon walking astronauts, stress tests, cardiac problems,  HSF to Mars.  Please direct all comments & questions regarding Space Show programs/guest(s) to the Space Show blog, http://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 & 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 Dr. Bill Rowe to the program to discuss his important discovery regarding four Moon Walking astronauts.  In our first segment of this two hour discussion, Bill explained his latest research findings& what his conclusions mean for human spaceflight.  To find out more about Dr. Rowe’s research, to read his papers, & to learn more about telomeres, oxidative stress, & astronaut cardiac issues, visit his website www.femsinspace.com.  In this segment, Bill talked about damaging the lining of the endothelium, too much or too little adrenalin & magnesium, & the four Moon Walking astronaut abnormal stress tests.  Our discussion then turned to the Inspiration Mars flyby mission which our guest said was not survivable.  Bill went over his reasons for his conclusion regarding this proposed 501 day mission& talked about 1G being the law & what that means for our bodies to be in less than a 1G environment.  Bill then talked about telomeres & possible damage for the round trip Mars mission, plus he talked about the lack of an effective space exercise protocol as well as problems with prescription medications in space, including the need to deliver medicines subcutaneously but there is no such subcutaneous drug delivery system.  Several times during our discussion, Bill said we might not be ready for humans to Mars for a long time, he kept asking what the rush was to go so quickly.  He commented on the Buzz Aldrin cycler plan which he thought was doable 22 plus years from now assuming our research advanced in the time leading up to such a mission.  Bill talked about radiation, including the recent data NASA released from the RAD instrument on MSL in space & on the Martian surface.  Eric sent in a clarification comment about the possible death of an Inspiration Mars crew member& he asked Bill about his exercise statements which he said did not seem to be in agreement with statements made by other aerospace medicine professionals.  Dr. Dear emailed in a question from the UK about Bill’s thinking that there will be no survival chance re Inspiration Mars.  He compared that to the record in space held by the Soviet Cosmonaut on Mir, citing that record as reason to think that the crew could survive the 501 day Mars trip which would only be about 64 fewer days in space than the Mars flyby mission.

In our second segment, we talked about possible lessons learned from the Inspiration Mars flight & Dr. Rowe talked more about the Buzz Aldrin Mars plan.  Bill then moved to the issue of females being better suited for spaceflight than men.  He had much to say on this subject plus he has several papers addressing the subject on his website.  Hint: Iron toxicity is a big issue.  Dust issues were discussed in this segment& Bill talked again about his submarine analogy on oxidative stress from his website (www.femsinspace.com/Oxidative_stress.htm).  When asked for some recommendations, Bill talked about the need for centrifuge studies & suggested rat studies with an on orbit centrifuge.

Please post your comments/questions on The Space Show blog.  Dr. Rowe can be reached through his website or directly using RoweRun@aol.com.

Dr. Alan Stern; Open Lines, Sunday, 3-24-13 March 25, 2013

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Dr. Alan Stern; Open Lines, Sunday, 3-24-13

http://archived.thespaceshow.com/shows/1979-BWB-2013-03-24.mp3

Guest:  Dr. Alan Stern.  Topics:  Golden Spike & the NSRC 2013 conference followed by Open Lines in the last hour.  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.

We welcomed back Dr. Alan Stern for the first hour of this two hour program.  Dr. Stern first talked about his new company, Golden Spike, then he told us about the upcoming NSRC 2013 Conference.  Please visit these websites for more information:  http://goldenspikecompany.com; http://nsrc.swri.org.  Dr. Stern started by telling us about the Golden Spike company plan, goals, objectives, and time tables.  He talked about the technology, their business plan, pricing, who may want to buy the two seats to go to the Moon for $1.5 billion and what they might do on the Moon though that is the choice of the customer.  He talked about the number of launches needed based the specific launch vehicle to be used.  We also talked about the lunar lander, challenges to the mission, and the company financial needs.  Return payload requirements were mentioned which are 50 kilos at this time.  Questions were asked about EVAs and spacesuits, capsule life support, radiation, etc.  Dr. Stern also received questions pertaining to the future plans for Golden Spike and potential mission expansion plans.  As we approached the end of the first segment of the two hour program, we talked about the upcoming NSRC 2013 conference to be held from June 3-5 in Broomfield, CO.  Alan went through the logistics, keynote speakers & he talked about the potential impact of sequestration on the conference.  During our hour with Dr. Stern, he also talked about two Indiegogo programs underway.  The first  campaign Alan talked about re $1 for each mile to the Moon can be found at http://www.indiegogo.com/projects/golden-spike-is-sending-nations-and-people-to-the-moon-join-in.  Later, Alan talked about naming the closest exoplanet via Indiegogo.  Check it out at www.uwingu.com.

In our second segment, we went to Open Lines.  I talked about the recent set of astronaut panels at Rocky Mountain College and when they might be archived on Space Show websites.  I also went over the coming Space Show schedule.  Doug called to talk about sequestration and he had Space X, Falcon Heavy and reusable questions per our discussion with Dr. Stern.  Later, John from Atlanta called re Golden Spike, Inspiration Mars, and the NASA budget.  He also talked about the continuing resolution (CR) and did not think there would be much blowback on Congress or NASA budget and spending issues.  In our sequestration comments, we talked about the FAA closure of some controlled airports and the political use of the sequestration.

Please post your comments/questions on The Space Show blog above  You can email our guest or any of our callers through me at drspace@thespaceshow.com.

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