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Brent Sherwood, Friday, 5-1-15 May 2, 2015

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Brent Sherwood, Friday, 5-1-15


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Guest:  Brent Sherwood.  Topics:  Human spaceflight, The year of the dwarf planets, Pluto, Ceres, budget math for space.  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 Brent Sherwood for updates to his human spaceflight analysis work previously presented on The Space Show.  During the first segment of our 1 hour 48 minute discussion, Brent started out with a brief discussion on scientific missions and the year 2015 being the Year of the Dwarf Planet.  He talked about the Dawn Mission and Ceres, New Horizons and Pluto, and the oceans on the outer planet moons.  Exoplanets and the habitable zone were also part of this discussion which included an assessment of just how our knowledge has changed regarding the compositing of the solar system.  To redirect the conversation to the purpose of today’s show, human spaceflight (HSF), I asked Brent when we would see HSF beyond LEO (BLEO). I asked about what seemed to be a new space advocacy push for space settlement. Brent then examined why HSF and referred us to his earlier work and the four reasons for HSF which were explore, exploit resources, to experience space, and settlement.  He said settlement was clearly part of the debate, talked about earlier workshops which would avoid the topic and then spoke to the recent Pioneering Space meeting held in Washington, DC where there was a consensus reach for space settlement.  He had good things to say about the meeting and the consensus resolution and talked about the broad space industry representation at the meeting as it was not just NewSpace.  Don’t miss what he had to say about it and space settlement.  Brent was also asked if our National Space Policy Act needed to be amended to reflect space settlement as the official goal of NASA.  Later, he was asked about the stepping stone or incremental approach to HSF development.  He supported this approach, spoke to the challenges for HSF such as life support and more.  As we were closing out the first segment, he offered us valuable insights on this topic so don’t miss what he had to say.

In the second segment, John from Florida called in to ask about grand space visions like an O’Neill orbital colony.  Brent proceeded to discuss grandiose visions in the context of how challenging they were plus their replacement cost.  Here, he used the replacement cost for Manhattan as an example of what he was talking about.  He cited a different type of example, the NASA Ames Space Settlement Contest that had nearly a thousand entries this year from 21 countries with the winner writing a 247 page grand space vision report.  Brent also spoke to the inspiration factor when talking about this contest.  A variety of listener emails were read on air for Brent to respond to, then I asked him if he thought Mars was the Holy Grail for HSF.  He said no so don’t miss why he said that.  He was asked about nuclear propulsion, then we talked about returning to the Moon , cislunar development, and then back to Martian settlement.  He was asked about going to the moons of Mars and he said there were two ways to settle Deimos.  Don’t miss his comments here either.  Near the end of the program, he said the physics of HSF were good but the problem was centered in being grounded in what he called program or budget math.  The budget math for HSF simply does not work, especially for a commercial venture.  He closed on the reality check of being grounded in budget math and the difficulty in going to Mars with humans.

Please post your comments/questions on TSS blog above.  You can reach Brent Sherwood through me at drspace@thespaceshow.com.

Dr. Robert Farquhar, Sunday, 3-25-12 March 26, 2012

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Dr. Robert Farquhar, Sunday, 3-25-12


Guest:  Dr. Robert Farquhar.  Topics:  Our discussion centered around his memoirs in his new book and his space involvement over fifty years.  You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, https://thespaceshow.wordpress.com. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright.  We welcomed Dr. Robert Farquhar back to the program to discuss his new book, “Fifty Years On The Space Frontier: Halo Orbits, Comets, Asteroids, and More.”  If you purchase the book using the following Amazon link, Amazon will make a contribution to The Space Show/OGLF:  www.amazon.com/Fifty-Years-Space-Frontier-Asteroids/dp/1432759272/ref=onegiantlea20.  Dr. Farquhar started out by talking about his early interest and work in aviation and space, gradually taking us up to and including the missions he has described in his excellent book.  Among some of the points he made included that in the early years, there was much more independent freedom for those working on missions while today things are done by consensus, committees, etc. When asked if the missions were improved and the costs contained by the newer methods, he said he did not think so. Its an interesting discussion you will want to hear.  He highlighted several of the early missions and we talked quite a bit about the halo orbit and Lagrange points.  He also told us stories about plaques he snuck on missions, trying to arrange one mission arrival to coincide with his birthday and more.  Great stories and for sure you will have a smile if not an outright laugh when listening to Dr. Farquhar.  He also said all of the stories he was telling us were in his book.  Later in the longer first segment we talked about human spaceflight and why he supports SLS/Orion.  This discussion took us into a more extensive conversation about L1 and L2 missions in the Earth-Moon system.

In the second segment, listeners asked about L4 with the 2010 TK7 asteroid, New Horizons, Pluto, Mercury, and more.  Bob told us additional stories, including some about the photos used in the book.  The JWST came up as did additional funding for NASA.  Bob did not think more funding was needed but thought the existing money could be used better.  The Kuiper Belt was discussed as were asteroid issues in general along with specific missions.  Neat the end of the show, I asked Bob if his space work & expertise has given him perspectives on the existence of ET.  This is a brief discussion you do not want to miss!

Please post your comments/questions on The Space Show blog URL above.

Sara Howard, Friday, 12-30-11 December 30, 2011

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Sara Howard, Friday, 12-30-11


Guest:  Sara Howard.  Topics: Sara’s experiences being one of two women who worked on the Saturn V rocket.  You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, https://thespaceshow.wordpress.com.  Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright.  The Space Show/OGLF is now engaged in its annual fundraising drive. Please see & act upon our appeal at https://thespaceshow.wordpress.com/2011/11/21/space-show-2011-fundraising-campaign. HAPPY NEW YEAR TO EACH AND EVERYONE ONE OF YOU!  We welcomed Sara Howard to the program, author of “Something Funny Happened on the Way to the Moon” which is her personal story about her experiences being one of only two women engineers who worked on the Saturn V rocket.  Later on Sara worked on the Trident submarine but most of our discussion today focused on her Saturn V experiences.  Sara was motivated by JFK’s Rice University speech, she was a math major at LSU, and got the chance to work at Michoud, Louisiana as a Boeing contractor on the team that worked on the Saturn 1-C.  Sara tells us about her team, the security for those working on the Saturn V and Apollo programs, and the need to get everything right and be 100% safe.  She talked about her team completing the first stage of the Saturn and the static firing tests of the 1-C in Mississippi.  Her stories about the security the workers went through to enter the workplace did not seem that unusual given we were in the midst of the Cold War and our experiences with air travel today.  But back then, as you will hear, this was all new to those working on the rocket.  She also told us some interesting stories about what the workers did when the program was cancelled.  Static tests, the love of their work, and their mission clearly drove these teams.  When we started the second segment of our program, Sara responded to questions about the F1 engine tests and she relayed to us what it was like firing all five of the engines for the static test at the same time.  We talked about not going beyond LEO and our guest questioned the purpose of the ISS several times during our discussion.  A caller wanted to know if she ever met Von Braun and the answer was yes.  Sara then told us some personal Von Braun stories.  She also told us about taking a family trip as a youngster to New Mexico and seeing a rocket launch from White Sands but not knowing what it was.  During our discussion she talked with us about the importance of studying math and physics and she repeated this several times over during our interview.  Later in the second segment, Sara was asked for her thoughts on the private sector taking over the building of the human spaceflight spaceships and she was very supportive of it, saying government was just messing things up.  I questioned her on safety issues with the private companies since she made strong comments about safety during the first segment.  As you will hear, she supports the move to privatization.  Toward the end, we talked about some of the chapters in her book and learned that she was never able to see a live Saturn V launch.  Near the end, John called in from Atlanta about the 2.5 minute engine test firing with several questions about the burn and the engine readiness.  At the end, Sara returned to questioning the purpose of the ISS & John and I attempted an answer. Please post your questions and comments on the blog URL above. You can contact Sara Howard at sara1861@gmail.com.