The Space Show
The Space Show
The Space Show focuses on timely and important issues influencing the development of outer-space commerce, space tourism,space exploration and space development. The Space Show is committed to facilitating our becoming a space-faring nation and society with a growing and self-sustaining space-faring economy. The Space Show also focuses on other related subjects of interest to us all.
Station feed:  Created by: David Livingston |
Created on: 12 May 2005 Language: English |
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Dr. Robert Zubrin, Tuesday, 4-27-10 (54.19MB; download) -- Guest: Dr. Robert Zubrin. Topics: Human spaceflight, US space policy, Mars. Dr. Robert Zubrin was our guest for this non-stop two hour program to discuss the proposed changes in US space policy and why having a destination is so important for our national space program. For more information, visit The Mars Society website at www.marssociety.org. Note the coming Mars Society Conference which Dr. Zubrin told us about, scheduled for Dayton, Ohio from August 5-8, 2010. Dr. Zubrin started our discussion saying that we could go to Mars in about ten years as technology was not the issue. I then asked why even have a human spaceflight program and why Mars. Bob provided us with a comprehensive response and discussion to both of these questions. In fact, this nearly two hour discussion was action packed, covered lots of aspects of space policy, was very comprehensive, and while he was critical of administration policy, he also offered solutions to the problems he described. During our discussion, Dr. Zubrin had much to say about the Augustine Commission findings, Science Advisor John Holdren, the budget expenses earmarked for the ISS when the US will not be visiting the ISS except using the Soyuz, and more. Listeners asked him about nuclear rockets, specifically Vasimr. Dr. Zubrin who has his doctorate in nuclear engineering, had much to say about nuclear rocket propulsion including Vasimr and nuclear thermal which is quite different. Listen to what he had to say about these different types of propulsion and why one is doable and one is extremely hard and costly since it requires so much added power, the latter being VASIMIR. Dr. Zubrin dissected the administration plan, especially the part about heavy lift. Listeners suggested that the research called for in the administration plan for heavy lift was about getting affordable heavy lift. Listen carefully to what Dr. Zubrin had to say about this and the entire research program suggested in the administration plan. Bob went to great lengths to talk about why policy needs a destination and time line, be it the Moon, a NEO, or Mars. He offered us many insights about programs without destination goals and timelines. Do you agree with him? Other listeners asked him many questions about Mars Direct including a potential test flight program, tethers, artificial gravity, and needed milestones. He was asked about a Mars fly by mission or landing on Phobos, he talked about orbital propellant depots, the differences in radiation for an ISS crew as compared to a Mars Direct crew. Toward the end of the program, Bob explained the old but important political doctrine of Thomas Malthus known as Malthusianism and why this is the opposite of what space development is all about. Listen to what Dr. Zubrin had to say about this and its influence in the current administration. At the end of the program, I asked him for his thoughts on the use of commercial launch providers and he said he was supportive of that as long as they can meet the requirements and do it. He indirectly referenced the GAP in this discussion but again said a program without destinations and time frames is a flawed or no program at all. If you want to send a comment or question to Dr. Robert Zubrin, please do so through me at drspace@thespaceshow.com. Selected by: David Livingston [ stations ], Wed, 28 Apr 2010 16:19:28 UTC
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Dr. William (Bill) Rowe, Monday, 4-26-10 (57.36MB; download) -- Guest: Dr. Bill Rowe. Topics: Long duration spaceflight human factors, gene modification. Dr. Bill Rowe returned for this Space Show program to discuss the concept of gene modification to permit humans to successfully engage in long duration spaceflight. Visit Dr. Rowe's website, www.femsinspace.com. In addition, two of the research papers Dr. Rowe mentions on the show can be found at these addresses:
http://eurheartjsupp.oxfordjournals.org/content/4/suppl_A/A8.full.pdf and http://content.karger.com/ProdukteDB/produkte.asp?Aktion=ShowFulltext&ArtikelNr=252852&Ausgabe=253992&ProduktNr=224091. In our first segment, Dr. Rowe put forth his thesis regarding long duration human spaceflight and some of the problems resulting from it that work against humans successfully engaging in this activity short of adapting to the environment. During this segment, Dr. Rowe outlines the issues and the problems and then sets the stage for the discussion potential solutions, specifically gene modification. This first segment is the foundation for this discussion. As we started the second segment, Bill summarized the magnesium deficiency and what it means and then identified four genes that might be the targets for modification. These four genes are ANP and N.O. regarding two vessel dilators and clot busters, Vessel Growth Factor (V.E.G.F), and Erythropoietin which builds up the blood supply. During this discussion, Dr. Rowe provides a detailed explanation of these genes and what they do and the reason why he believes these should be targeted for modification in human spaceflight. Dr. Rowe was asked questions about animal genetic research and its application to human genetic research, radiation, and ethical issues around human genetic research. He mentioned viruses being the most common vectors for genetic research but said the research was very much in its infancy. In the third segment, Dr. Rowe continued discussing the pharmaceutical problems when used in space and he was then asked about publications in the journals on these subjects. Our guest described the publication process as a political issue with lots of fear surrounding the publication of articles on this and related subjects. Later in the segment, the issue of cardiac atrophy came up in a question and G-force acceleration for people beyond age 30. You do not want to miss this discussion. Visit Dr. Rowe's website and if you have questions or comments for him, please send them to RoweRun@aol.com.
Selected by: David Livingston [ stations ], Tue, 27 Apr 2010 15:39:15 UTC
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Dr. Jeff Bell, Sunday, 4-25-10 (62.36MB; download) -- Guest: Dr. Jeff Bell. Topics: space policy, space advocacy, human spaceflight. Dr. Jeff Bell returned to discuss space policy in light of the administration proposals. As you will hear in the this two hour interview, Dr. Bell had much to say that will irritate people on all sides of the issues and the space advocacy movement. So get comfortable listening to this program, listen carefully, and give thought to what Dr. Bell talks about. In our first segment, Dr. Bell referred to the Obama plan as Plan 1 and Plan 2. He even talked about the possibility of some of the issues in proposed policy changes finding their way to the courts for resolution. We then talked about Plan Bush and Jeff started speaking about the Orion part of Constellation. He referenced the Augustine Commission and said there simply was no funding levels for human spaceflight beyond LEO. He also said the five year time table in the Obama plan was too short and that we should probably defer human spaceflight for ten to twenty years to perfect new technologies that would get us to space at a significantly reduced cost. Dr. Bell took several listener questions about the impact of the US deferring human spaceflight for a decade or two. Listen to what he had to say about this action. When asked about the effort to go commercial, he suggested it was just paying different parties to do essentially the same thing. Toward the end of the first segment, the nuclear rocket came up for discussion. Jeff said it was not affordable and put forth a discussion detailing why the nuclear rocket was so costly. He addressed another listener question about policy taking too long, thus space policy has to be completed within a presidential term or the next president will change the policy again. Jeff disagreed with this listener and cited some examples of projects spanning different presidential administrations. At the end of this segment, he suggested there was no case to be made for going to Mars. As we started the second segment, he talked about robotic asteroid missions for planetary defense, not human missions. We talked about the Friday Washington Post editorial calling for the end of human spaceflight. In response to callers, Dr. Bell reiterated the need to stop human spaceflight until such time as new technologies exist to do it cheaper. During this segment, Jeff turned his attention to the space advocacy movement which he said had become more extreme and hostile as space policy becomes more questionable. He said there was no case for SSP and beamed power, going into this in some detail. We asked Dr. Bell about the X37B Air Force launch and then Dr. Bell talked about the need to move away from SRB boosters. He said the good thing in the Obama plan was the need to develop the kerosene engine which he thought might be possible within a five year time frame. As the show ended, he talked about space advocates having to learn to stop acting like 1960's sci fi programmed clones. Listen to his comments throughout the interview on this topic. He even urged space cadets to become deprogrammed by stopping to accept everything one reads and is told in the space news, on the space blogs, by organizations, etc. If you have comments or questions for Dr. Jeff Bell, please send them to me and I will forward them to Jeff. Be patient, Dr. Bell does not respond to all notes nor does he do so on a timely basis. Selected by: David Livingston [ stations ], Mon, 26 Apr 2010 03:53:29 UTC
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Dr. Clay Moltz, Friday, 4-23-10 (59.15MB; download) -- Guest: Dr. Clay Moltz. Topics: Space Governance, Lunar Governance, space policy. We welcomed to the show Dr. Clay Moltz from the Dept. of National Security Affairs at the Naval Postgraduate School. If you are interested in downloading and reading the paper we discussed during the show, you will find it at www.au.af.mil/au/ssq/2009/fall/moltz.pdf. In our first segment, we led with the successful launch of the top secret Air Force X37 and the possibility that it might be a space weapons system. We also talked about why articles on this issue were coming out of Australia as well as other places. I believe you will find this to be a very interesting discussion. We then talked about lunar governance and our guest said we were not well prepared regardless of who goes first to the Moon and regardless of it being a commercial company or a government project. In this discussion, Dr. Moltz talked about the Antarctica treaty, the Outer Space Treaty (OST) and the Moon Treaty. The Law of the Sea Treaty was also referenced. As we started our second segment, I asked if each space destination would require a different set of governance standards. For example, how different would Mars governance be from lunar governance? We talked about the track record of US behavior in space and then took a look at the space behavior of other space fairing nations. The issue of space debris came up and Dr. Moltz told us about the 1960's Project West Ford. The subjects of nuclear power and nuclear rockets came up and our guest had some very interesting things to say about nuclear and space. This discussion then took us to the bigger question of space security. Dr. Moltz talked about DOD space guidelines, and the proposed space treaty by China and Russia which the US has not been supportive of to date. He explained some of the problems with it and then talked some more about the Law of the Sea Treaty which he believes we should have signed. In the third segment, we again focused on orbital debris. As a result of Marshal's question, Dr. Moltz defined space debris. If the item can be maneuvered, it would not be considered space debris. He also talked about the Chinese ASAT test and potential Chinese debris liability. We spent a major part of this segment talking about polluting the space environment and the efforts underway to avoid doing this. In the fourth and final segment, we addressed the US space vision. We asked Dr. Moltz if the VSE was dead and our guest summarized recent US space vision history. We talked about the Chinese vision and the role of the military with China. Toward the end of the program, our guest outlined probable components of the developing new US space vision which he believes will include a focus on commercial space, entrepreneurial development, international cooperation and partnership, and the modernization of ITAR. Before the program ended, I asked Dr. Moltz about nuclear proliferation and its potential impact on space development and if political sanctions against another nation actually work. You will want to hear what he had to say in response to both of these questions. If you have a question or comment for Dr. Clay Moltz, please forward it to me at drspace@thespaceshow.com and I will send it to Dr. Moltz.
Selected by: David Livingston [ stations ], Sat, 24 Apr 2010 04:55:00 UTC
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Gwynne Shotwell, Thursday, 4-22-10 (32.88MB; download) -- Guest: Gwynne Shotwell. Topics: Commercial crew, Falcon 9, human spaceflight, commercial launchers, SpaceX. Gwynne Shotwell, President of SpaceX, was our guest for this special full hour program in which we discussed SpaceX, Falcon 9, Falcon 1e, commercial launchers, space policy, safety and so much more. To learn more about SpaceX, please visit www.spacex.com. Ms. Shotwell started our discussion with a SpaceX overview. We initially focused on the Flight Termination System and how the Air Force decides to use the system if the rocket flight needs to be aborted. Gwynne said the Falcon 9 launch window was around May 8-9 but it might be later depending on several factors. We also asked about the initial Falcon 1e flight so note the schedules, launch sites, and plans. We then approached the subject of safety for crew riding the Falcon 9 or for that matter any commercial rocket. Ms. Shotwell had much to say on safety issues, she clarified many misconceptions about this issue, and explained what SpaceX and others were already doing and must do to comply with space regs. This is a detailed discussion so don't miss it. We also talked about the COTS program, Bigelow space stations, using other rockets for Dragon, and orbital space tourism. A listener asked about the safety requirements for NASA astronauts being the same for orbital space tourism. As you will hear, they are two different markets serving different customer needs. Another listener asked about reusability and refurbishing which Ms. Shotwell spoke about in some detail. Additionally, Gwynne made it clear that SpaceX is selling a service, not hardware. You will want to be sure to understand this distinction. Yet another question asked about SpaceX designing an SSTO. What was interesting here was the fact made very clear by Gwynne that for a commercial company and project, engaging in long term R&D is not usually something that is done as the focus has to be on the product/service to generate profits. Gwynne was asked about new engine development, launching Dragon on other US as well as foreign launchers. At the end of the interview, I asked about SpaceX hiring of new college grads and internship programs. She gave us a resounding YES to both and suggested that those interested send their resumes to dolly.singh@spacex.com and visit their career page at http://www.spacex.com/careers.php. Applicants need to be US Citizens or legal residents. Before signing off, Robert in Los Angeles asked her if SpaceX would be doing an IPO or remaining private. Don't miss her reply to this final question. If you have a comment or question for Gwynne Shotwell, please be concise and send it to gwynne@space.com. Selected by: David Livingston [ stations ], Thu, 22 Apr 2010 23:06:14 UTC
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Open Lines, Tuesday, 4-20-10 (64.00MB; download) -- Guest: Open Lines with Dr. David Livingston. Topics: policy, Obama Space, commercial space, various space start-ups. This was a two hour plus OPEN LINES program with almost non stop listener telephone calls in addition to email and chat. We started our fist segment with a phone call from Bob Zimmerman. Bob did a 15 minute or so rant on Obama space, the April 15 space conference at the Cape and more so don't miss this energetic start for this program. At the end of Bob's comments, he spoke about some of the new Climategate issues that have come up and that he was going to discuss on national radio later in the evening. Mark Bray then called in and had much to say about our space policy, ISS, shuttle extension, and more. We fielded emails from Joe in Houston about parallels with canceling the Apollo program and today. Many listeners commented on Joe's question. Joe also introduced us to Vasimr as a discussion topic and it was brought up several times during this program, both as to being on the ISS and in deep space. As we started the second segment, Paul Graham of the open source Open Luna project called in. You can find out more about his project at www.openluna.org but he answered several questions and provided us with much information. If you are interested in more information about his open source project, contact him through their website or paul-spaceshow@openluna.org. Since he was calling in from Canada, I asked him for a Canadian perspective on the administration's space policy budget and suggested direction for NASA. You will want to hear his comments on this. John in Atlanta called in, spoke about shuttle, Orion, Vasimr and more. Amnon called in regarding Astronauts For Hire and suborbital space development. Dave Ketchledge called in to talk nuclear with us and human factors and engineering. We also fielded many other emails about the ISS, commercial space, space policy, and various companies such as SpaceX. At the end of the program, Terry phoned in to strongly urge the acceptance of the path that both NASA and Lockheed are presenting, he talked about his confidence in SpaceX which I shared and the fact that we are at an important crossroads regarding space. Listen to his suggested approach and see if you concur. Charles Pooley was our final caller just before I shut the program down for the evening and he talked about the new paradigm he promotes and Microlaunchers (www.microlaunchers.com). If you have a question or comment for any of the listeners that participated in tonight's show, send it to me at drspace@thespaceshow.com and I will forward it to the person of your choice. Selected by: David Livingston [ stations ], Wed, 21 Apr 2010 16:50:55 UTC
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Marc Millis, Monday, 4-19-10 (43.79MB; download) -- Guest: Marc Millis. Topics: Breakthrough propulsion, fusion energy, incomplete physics, far out theories and research. Marc Millis returned to the program to discuss breakthrough and far out propulsion ideas. Find out more about his work and his organization Tau Zero Foundation by visiting www.tauzero.aero. In our first segment, Mr. Millis told us about the cancellation of the NASA Breakthrough Propulsion Physics Project which he once headed. This is a fascinating story, don't miss it. We then learned about the Tau Zero Foundation and its far future visionary approach to physics and the issues studied by Tau Zero team members. As you will hear, these researchers do not go for picking winners, they have a totally different approach which you will want to hear about. We discussed space policy and out of the box thinking. Marc talked about the need for seeing impossible goals and to look in places that others ignore. He cited the example of the issue "space drive." As we started the second segment, Marc fielded lots of fusion questions focused on M2P2, proton boron 11 fuel, IEC Fusion, EMC2 and more. Marc restated that his team does not pick winners but he mentioned two of the Tau Zero team members working on fusion, Kelvin Long in the UK and Dr. Richard Obousy from Texas with the Project Icarus study on fusion methods which may publish results in about 18 months from now. Marc took a listener question about fear surrounding nuclear power and the use of the word nuclear. You will want to hear what Marc had to say about high energy density projects and the riskiness of such ventures/projects. We also talked about radiation risks in deep space travel regardless of any man made nuclear power sources. Another topic in this segment was gravity control. As you will hear, Marc talked about the large amounts of energy needed for any type of gravity control so gravity control is not a bypass to needing new sources of significant amounts of energy. In letting us know where we are in this process, our guest said we can ask pointed questions but we have no real theory to work with to mitigate gravity. As this segment ended, we talked about visionary people and the possibility of these projects getting traditional funding such as from NSF. As we started our third and final segment, Marc fielded a listener question as to where we should go in the galaxy. He said that his work is focused on our galaxy only. We talked about Earth-like planets, would going to Mars help out in efforts to achieve breakthrough propulsion success for distant space travel, and what kind of time frame is reasonable when thinking about an interstellar probe. As you will hear, our guest estimated a time frame ranging from 50 years on the near side to about 200 years on the outside end of the time frame for a robotic probe.. I asked Marc what he thought might be the initial breakthrough and he limited his response to the filed of incomplete physics. Don't miss what he suggested. A student asked for the best path to follow to have a career in this field of physics so listen to Marc's advice. This then led to a discussion of breakthrough physics in academia and you won't want to miss this analysis. Marc suggested that those interested follow what is published and the best way to do that is to check out Centauri Dreams published by Tau Zero at www.centauri-dreams.org. If you have questions or comments for Marc Millis, you can contact him through Tau Zero Foundation at www.tauzero.aero/site/html/contact_us.html. Make sure you reference his appearance on this Space Show program. Selected by: David Livingston [ stations ], Tue, 20 Apr 2010 17:12:19 UTC
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Mark Whittington, Sunday, 4-18-10 (59.60MB; download) -- Guest: Mark Whittington. Topics: Administration space policy, lunar resources, why space? Mark Whittington, author and journalist, returned to discuss the Administration's space policy. You can follow Mark's at http://curmudgeons.blogspot.com, www.associatedcontent.com, and at the Houston Examiner. As we started our first segment, Mark summarized the history of President Obama and space. He looks at education, the ISS, Augustine, and all the components of space policy that the President has talked about over the past few years. We then talked about commercial space and he said the administration program did not go far enough in that he thinks the government should commit to and help develop private markets for the commercial players so they are not dependent only on a government client that makes all the rules. Listeners asked if it was the government's responsibility to develop private markets for any business or industry. Before the segment ended, we talked about the transition to commercial and should it be softened somehow. In the second segment, Mark suggested that the administration was not interested in space exploration and they were engaged in a ruse. He then brought up returning to the Moon, especially because of the recent international science missions that have confirmed water on the Moon and other resources that could be used in a lunar base and more. While some of you will find his comments controversial, listen carefully and let him know what you think. We also talked about the NASA budget in response to a listener question and the overall condition of the US economy and human priorities needed today. He made it clear that the NASA budget does not drive or create the nation's deficit and even if the NASA budget were doubled, it would be insignificant in comparison to the trillions being spent on all sorts of government programs and projects. With regards to technology R&D, Mark suggested that it needs to focus on specifics which it does not do. Mark then returned to outlining the case for going to the Moon. As for other policies that should be implement to help develop space markets, he suggested Zero G Zero Tax, and making the entire field of space development an Enterprise Zone. The subject of the GAP came up and we talked about continuing shuttle. Mark explained why that was not a good idea. Marshall asked about exporting jobs to Russia to fly us to the ISS. The same for questions around Orion, Orion Lite, EELV, SpaceX, Orbital, and Sierra Nevada. As we started the third and final segment, I asked Mark about the MIT Newsletter article he posted on his blog by Keith Yost at www.associatedcontent.com/article/2880660/no_we_should_not_cut_nasa_funding.html?cat=15
John from Atlanta called to talk about the shuttle, we then talked about the F1 engine and the Saturn V, and a liquid fueled fly back booster. We got a question from a Denver listener challenging Mark and all of us on the value of space for the average person. Mark cited history with Prince Henry the Navigator before Columbus and resources available on the Moon and in space. We also talked about infrastructure, commercial opportunities and more. Ernie called in to suggest people get politically involved and lobby both parties for good space policy. As the show was winding down, I asked Mark for his policy recommendations which you will hear. We talked about his books, "Children of Apollo" and "The Last Moonwalker." At the end of the show, John in Montana asked Mark why he liked to get in the face of and tweak so many space cadets. This was an entertaining discussion but I think I could summarize it by saying people need to be better listeners, myself included. Mark shared with us excellent closing comments so listen carefully to his tweak comments and his pearls of wisdom. If you have a question or comment for Mark Whittington, you can email him at mwhittingt@sprynet.com.
Selected by: David Livingston [ stations ], Sun, 18 Apr 2010 23:58:57 UTC
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Dr. Philip Harris, Friday, 4-16-10 (58.67MB; download) -- Guest: Dr. Philip Harris. Topics: space policy, White House Conference On Space Enterprise. Dr. Phil Harris returned for this program to discuss US space policy and convening a special White House Conference On Space Enterprise. His new book, "Toward Human Emergence: A Human Resource Philosophy for the Future can be purchased on the One Giant Leap Foundation (OGLF) Amazon partners website at www.onegiantleapfoundation.org/books. If you purchase it from the OGLF site, Amazon makes a contribution to OGLF/The Space Show. You can find out more about Dr. Harris and his work by visiting his website, www.drphilipharris.com. In our first segment, Dr. Harris talked about the changing cultures and referenced the Epilog of his book mentioned above titled "Private Enterprise Challenges Offworld-Utilizing Space Resources for Economic Renewal." If you would like a copy of this document, email your request to me. Dr. Harris spent most of this segment outlining the history behind his calling for the White House Conference going back as far as 1984! He listed several commercial models that space enterprise could build upon and then talked about the commercial viability of space based and lunar based solar power. Listeners challenged him on the economics of energy from space but as you will hear, Dr. Harris was thinking very long term and has a long term vision but it needs to be started now. At the end of this segment, he received some questions about the Augustine Commission which he said was myopic. As we started our second segment, he talked about our being part of the Knowledge Culture and what this meant for space development as well as for our individual responsibility. He returned to energy from space and focused in on lunar solar power. In this segment, we discussed the importance of the ISS and the Le Grange points as destinations such as L1 and L5. In the context of long term vision, he compared and contrasted the United States with China. At the end of this segment, he repeated saying that returning to the Moon should be part of any program. Segment three started with a private enterprise discussion. He told us a few stories, including one from 1984 with Gene Roddenberry. He referenced the Steering Committee managed by Ken Cox and talked about the need to develop a real space transportation system that was both affordable and reliable. When we closed this segment, he returned to the Moon and again talked about the substantial lunar resources we should be exploiting. His final comments before the break were about the need to develop a good strategic plan. As we started the fourth and last segment, we spoke about plans to go to Mars. He suggested the first half of our century would be devoted to the Moon and learning how to go to Mars while the second half would be done in the second half of the century. He cited the space visions of both Dr. Zubrin and Buzz. The subject of space law came up and he talked about how it had emerged into being a viable career path at this time. He also talked about the future Astrolaw which he said will be the law created those living and working in space. He offered us many inspiring and literary quotes from well known and respected people that support the need and focus of our space program. If you have questions or comments for Dr. Philip Harris, you can email him at PhilHarris@aol.com. Selected by: David Livingston [ stations ], Sat, 17 Apr 2010 17:00:27 UTC
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Gary Moir, Don Harvey, Tuesday, 4-13-10 (45.35MB; download) -- Guests: Gary Moir and Don Harvey. Topics: Apollo 13, Lunar Module Descent Engine (LMDE), Apollo history. As this week celebrates the 40th anniversary of Apollo 13, our guests Gary Moir and Don Harvey talked about their Apollo and Apollo 13 experiences, the Apollo space program, and space policy and programs today. In our first segment, Gary started the discussion with a look back on the Apollo program and Apollo13. He talked about what it was like being called out of a USC class and flown to Houston to work the Apollo 13 propulsion problem. He then explained the LMDE challenges and the simulations they had and what they did. You certainly will want to hear this story and the details as we have not heard it before. Later in this segment, Don shared his experiences and perspectives and we concluded the segment with Don talking about his rocket propulsion article which is on the web. As we started the second segment, Don said we could find his article at www.cbtsresidents.com. Select Spectrum and then select the article by Don titled "ROCKET PROPULSION - THE APOLLO MISSION" As a result of listener questions, both our guests commented on the uniqueness of the time in which Apollo existed as compared to the times of today for our modern space program. Another listener asked what they thought of the idea of the new program being "Apollo on Steroids" given they were involved with the original Apollo program. You will find their comments and perspectives on this to be most interesting. In our third and final segment, our guests told us engine related stories from their Arnold Engineering Development Center experiences. We also learned about Jerry Elverum and his rocket engine technology/engineering contributions. John from Atlanta called in near the end of the show to ask about the design of a future lunar lander and the possibility of using cryogenic fuels. This produced an interesting discussion that you do not want to miss. If you have a question or comment for either of our guests, please send it to me and I will forward it to the guest of your choice. Selected by: David Livingston [ stations ], Wed, 14 Apr 2010 16:45:28 UTC
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