jump to navigation

Bruce Pittman, Monday, 5-4-15 May 4, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , ,
add a comment

Bruce Pittman, Monday, 5-4-15

http://archived.thespaceshow.com/shows/2467-BWB-2015-05-04.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Gust:  Bruce Pittman;  Topics: ISDC 2015 conference and related topics.  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 Bruce Pittman back to the show to discuss the upcoming ISDC 2015 Conference to be held in Toronto, Canada from May 20-24, 2015.  During our one hour program, Bruce talked about ISDC events in general, then the Toronto location for this year’s conference and the conference location, the Hyatt Regency Toronto.  ISDC is a multi-track conference with workshops and an excellent exhibit hall.  For more information, registration, hotel bookings, visit the ISDC 2015 website, http://isdc2015.nss.org/wordpress.  From time to time during our discussion, Bruce mentioned a separate event needing separate registration, The Space Innovation Business Summit (http://isdc2015.nss.org/wordpress/the-space-innovation-business-summit).  Bruce also went over the list of the keynote speakers, all of which are listed on the ISDC 2015 website.  In fact, I strongly suggest you open the website and follow along with us during our discussion about the event.  Bruce also said there would be upwards of 300 students present from around the world as a result of the Space Settlement Contest.  Bruce highlighted both India and Romania for their student participation in the contest and ISDC 2015.  Listeners asked many conference questions including networking, Q&A sessions, and inquiring if there was both a propulsion track topic and a human factors track topic.  Toward the end of our discussion we took a call from Doug regarding EML2, depots, fuel, Mars transportation, etc.  If you are planning to attend, remember you need a passport to enter Canada. Reserve early for the hotel, the conference and your transportation.  ISDC is a terrific event. If you attend, I want to hear from you about it on The Space Show.

 

Please post your comments/questions on TSS blog.

 

SPECIAL ANNOUNCEMENT, MONDAY, MAY 4, 2015 May 4, 2015

Posted by The Space Show in Uncategorized.
3 comments

SPECIAL ANNOUNCEMENT, MONDAY, MAY 4, 2015

In Memoriam

The Space Show lost a good friend and I lost a good personal friend this weekend as Charles Pooley passed away.  At this time I have no additional details.  All Space Show programs this week will be dedicated to the memory of Charles. On our Tuesday, May 12 Open Lines show, those of you who wish to email or call in and remember Charles, please do so.  We lost a really good guy this weekend, a space advocate and solid engineer thinking guy who was very special.  Charles Pooley will be missed and remembered for years and years to come.

Rest well my friend.  We will always remember you, miss you, and treasure your Space Show programs and moments,

Your friend,

David

Dr. David Livingston, Host

The Space Show

Damian Peach, Sunday, 5-3-15 May 4, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , ,
add a comment

Damian Peach, Sunday, 5-3-15

http://archived.thespaceshow.com/shows/2466-BWB-2015-05-03.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest:  Damian Peach.   Topics:  Amateur astronomy & imagine, viewing techniques, atmospheric issues & more.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

 

We welcomed Damian Peach, well known amateur astronomer from the UK to the show.  Visit his website for more information and to see his work, www.damianpeach.com.  During the first segment of our 90 minute program, Damian talked about his early interest in space and the definition for an amateur astronomer. We learned most are self taught as was the case with Damian, that the field was not as math intensive as a professional astronomy career and that amateur astronomers significantly contribute to the field of astronomy and work well in harmony with professional astronomers.  During this segment, listeners had many questions for our guest including asking if he had sponsors, the cost of amateur equipment, his typical viewing schedule on the South Coast of the UK where he lives and his other location, Barbados.  In fact several questions came in about viewing conditions in Barbados and the effect of weather and humidity on his viewing in that location.  Damian likes to photograph Jupiter and Saturn and the bigger outer planets.  Don’t miss the why behind this.  As you will hear and you can see on his website, he has also done lots of excellent imaging of the Moon.  I asked him about his interest in going to Mars, human spaceflight, and more, all of which he said he was interested in.  Other first segment topics included wanting to know more about his techniques, amateur spectroscopy, and amateur peer review.  Regarding his interest in Jupiter, he talked at length about the always changing Jupiter weather that he liked to document in his Jupiter photography.

 

In the second segment, he talked about the upcoming JUNO Mission to Jupiter & the need for amateur astronomers to take images and submit them to the JUNO team.  Other topics in this session included cubesats, amateur astronomy groups in Europe, the U.S. and elsewhere, plus Pluto and New Horizons.  Listeners asked about amateur solar and deep space astronomy, cosmic rays, and more.  Science fiction came up as did the movie Interstellar.  Later, Ben sent in a note while looking at Damian’s Mars images on his website and asked about color enhancing and photo touchups.  Imaging Mercury and Venus came up in the discussion as did light pollution, viewing & searching for comets & NEOs.  Near the end of the program, we talked about Ceres and the Dawn Mission from the amateur perspective.  Near the end, I asked Damian his first choice mission were he the space mission guru.  I bet you will be surprised by what he said.  Dr. Dewar asked about making space access available with space based telescopes through nuclear propulsion given the cost of launch would be so much cheaper. Don’t miss Damian’s response.  Marshall called at the end to talk about technology advancement & more.

 

Please post your comments/questions on TSS blog above.  You can reach Damian Peach through his website or me.

 

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

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , ,
3 comments

Brent Sherwood, Friday, 5-1-15

http://archived.thespaceshow.com/shows/2465-BWB-2015-05-01.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

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.

John Batchelor Show Hotel Mars, Wednesday, 4-29-15 April 30, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , ,
add a comment

John Batchelor Show Hotel Mars, Wednesday, 4-29-15

Special Guest:  Nancy Atkinson

http://archived.thespaceshow.com/shows/2464-BWB-2015-04-29.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guests: John Batchelor, Nancy Atkinson, Dr. David Livingston. Topics: Apollo 13, Gimbal-lock, Passive Thermal Control and Cmdr. Jim Lovell. 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. Please note that audio and transition issues are a result of copying the John Batchelor broadcast & are not within my control as they originate in the Batchelor studio.

 

John Batchelor and I welcomed Nancy Atkinson to the program, to discuss her April 24, 2015 Universetoday.com article, “13 More Things That Saved Apollo 13, part 9: Avoiding Gimbal Lock.” See www.universetoday.com/119984/13-more-things-that-saved-apollo-13-part-9-avoiding-gimbal-lock. During our Hotel Mars segment, we discussed Gimbal-lock, the use of Passive Thermal Control, and the piloting skills of Jim Lovell in bringing Apollo 13 safely back to Earth. I’m quite sure you will find this to be an interesting discussion.

 

You can email Mr. Batchelor or Nancy Atkinson through me at drspace@thespaceshow.com.

 

 

Open Lines, Tuesday, 4-28-15 April 29, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , ,
4 comments

Open Lines, Tuesday, 4-28-15

http://archived.thespaceshow.com/shows/2463-BWB-2015-04-28.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest:  Open Lines with Dr. David Livingston.  Topics:  Space Show website & possible crowd funding program, a variety of other space topics.  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.

Welcome to this two hour Open Line discussion on a variety of topics.  Note that while I took two breaks during the discussion, I am still archiving the show in just two segments.  During the first segment, my suggested discussion topics included my response to an April 10 email from Doug wondering why I strongly believe that the economic development of space will be a sizeable part of the future economy.  I answered this question for Doug on air and during the show a few listeners added to my answer.  My next suggested topic dealt with The Space Show website problems and the development of a new site to be funded by a crowd funding program.  I asked listeners for suggestions for incentives to offer contributors to the crowd funding venture. While most offered excellent and serious suggestions, one or two listeners responded with sarcastic comments and probably in their mind, funny comments.  But I am very serious about this.  The Space Show website is moving, we are trying to move the existing site to stay up with something that works and all of you are familiar with as a completely new site needs to be funded.  If you do have suggestions for incentives for supporting our crowd funding effort, post them on the blog or email them to me.  I appreciate this.  Our first caller was Andrew in Tucson who called from the top of Kitt Peak as he was there working two telescopes and doing observatory work.  We talked with Andrew about his work and project, the telescopes, life on Kitt Peak, light pollution in the area and more.  We also talked with him about other observatories in Tucson and Flagstaff, plus since he has been to Mauna Kea in Hawaii, we talked about that as well.  I planned a visit to him on Kitt Peak and will do some recorded interviews while there for future Space Show program.

We took a break at the top of the hour and returned to talk with Jeff from Tucson about his work with Andrew and his thoughts on the ULA-Vulcan project plus comments by the new ULA head, Tory Bruno.  I asked if he had read the recent Space Cynics post on ULA Vulcan by Shubber Ali who pretty much dissed the venture (see https://spacecynic.wordpress.com – the lead post).  Jeff briefly looked at it and said it lacked numbers and fact and was an opinion piece. What Jeff then had to say was based on engineering, numbers, and fact and he thought it was a good project.  Don’t miss what Jeff had to say about ULA Vulcan as it was a good call.  Jeff’s called sparked others to comment on both ULA and SpaceX and I made the case for needing both companies and more to help the emerging commercial space industry grow and develop.  I also commented that the one or the other mentality or moon vs. mars or being forced to make choices at the expense of other valid choices was counter-productive and not supportive of industrial growth yet I realize we are living in tight budget times.  We took another short break, then Tim called in to disagree with an earlier guest on the possible use of RTGs on the Moon and the use of material such as Plutonium 239 or substitute materials that may be cheaper and in more abundant supply.  Mike called to advocate for getting Ms. Shotwell of SpaceX back on the show, then Doug called to question the year long ISS experiment with Scott Kelly.  Rather than using a time line for the mission parameter, he wanted to suggest targeted objectives to meet.  While I thought his idea was a good one, I was at a loss how to suggest he go about getting changes in the mission design for this experiment.  I did suggest I would see if I could find who designed this mission and get them to be on The Space Show. If any of you have specific information on this, please let me know.

Post your comments/questions on TSS blog above.  You can reach any of the participants in tonight’s program through me.

Eric Berger, Monday, 4-26-15 April 28, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
2 comments

Eric Berger, Monday, 4-26-15

http://archived.thespaceshow.com/shows/2462-BWB-2015-04-27.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest:  Eric Berger.  Topics:  Space policy, NASA’s future, commercial space, human spaceflight challenges, & lots more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed Eric Berger to the program for a wide ranging discussion on US space policy, NASA, our space future, commercial space and more.  During the first segment of our 1 hour 37 minute show, Eric started the discussion by talking about his early interest in space, his contacting NASA as a child, getting back a great set of photos and other information and being hooked and excited about space ever since.  Some of the early topics in this segment included his surprise that we are not yet beyond low earth orbit with manned spaceflight, then he addressed why it is taking so long to go to Mars , why Mars is the next big step for humans and why going to Mars is so hard.  In his discussion of these topics, he referenced Elon Musk and the SpaceX Mars plans, even Mars One.  I asked Eric for his perspective on the NASA ARM mission which led to one of many discussion of NASA budget constraints and the idea that this or that project is all that can be done within the budget permitted by Congress.  Eric started getting lots of listener emails.  Jenkins wrote in saying that its not the budget that is the problems, the choices we make as a country regarding how we spend money that is the problem.  Eric then referenced the human spaceflight study released last year by the NRC regarding the likelihood that we will be living with tight NASA budgets for the foreseeable future.  Paul in New Mexico asked Eric about the impact of commercial space on policy and NASA.  Eric said it was an important impact so don’t miss his full statement.  Later in the segment, we talked about his seven part “Adrift” series last year and I asked him what his biggest surprise was in researching the articles for the series.  He said it was finding a shift in his view on SLS and that SLS could very well be an important part of our spaceflight future but that it needs to be funded to launch real programs.  He also said that maybe Falcon Heavy could do most of what SLS could do, especially in the Earth-Moon systems but that remains to be seen.  We then talked about the time it took to do various parts of Apollo compared to how much time it takes to do just about anything in space today.  Michael Listner called to talk about needing both NASA & commercial space and some realities involved in policy and space issues.  As the segment was ending, a Portland listener asked if competition with China might develop and force the US to spend more and do more in space.  Don’t miss Eric’s answer.

In the second segment, Eric was asked about space settlement being the goal and the purpose of our National Space Policy through a change in law per March Storm and other groups who are advocating this.  Eric was OK with space settlement but listen to his comments for the full context of his message.  He also said it was hard to figure out what to do with SLS but that some changes might be a full ten years out from today.  We talked about space technology advancements and then Gerald Driggers called in to say we had lots more work to do. For example, we talked about the need to fly a centrifuge in space to determine the gravity RX for humans.  The issue of the lack of space leadership came up from the White House down to the congress.  Many times our guest said it would take a change in leadership to get a change in space leadership but that just changing leadership does not mean the new leader(s) will care about or prioritize space.  Regarding commercial space, he went a bit deeper in this segment.  He said there was lots of commercial space activity but that NASA was still the center of it.  He made the case for the industry needing a broader base than just NASA.  I asked about a Europa mission and another listener asked he could articulate the Senator Ted Cruz view on space policy.  We talked timelines for humans to Mars and for a return to the Moon, he was asked if NASA should be eliminated in favor for a return to something like the old NACA, then Benny in Denver asked about the Texas spaceport facilities being developed for SpaceX and the Blue Origin facility.  As we neared the end of the program, Eric again stressed the difficulty in going to Mars, he looked back at our space history including Gemini 4, and he talked about the Obama policy from 2010 about not going back to the Moon though many in NASA do want to go back to the moon.  Bottom line was Mars around 2050.

Please post your comments/questions on The Space Show blog. You can reach Eric through me or the Houston Chronicle.

Dr. John Jurist Webinar, Sunday, 4-26-15 April 25, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
4 comments

                Dr. John Jurist Webinar, Sunday, 4-26-15

Selecting The Rocket Motor, Fuel, & Trade To Optimize The Mission

http://archived.thespaceshow.com/shows/2461-BWB-2015-04-26.mp3- audio

https://vimeo.com/126223310– Webinar video

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest:  Dr. John Jurist.  Topics:  Choices and consideration in configuring launch systems.  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.

 

Welcome to this two hour webinar regarding the choices and considerations that can be made in designing and configuring launch systems.  TO VIEW THE WEBINAR VERSION OFTHIS PROGRAM, GO TO https://vimeo.com/126223310.   Note that on the blog for this program are two Power Point presentations for your use.  Dr. Jurist referred to both of them during the webinar, especially the presentation titled “Choices: Some Considerations in Configuring Launch Systems.”  I urge you to follow along with them during the webinar.  During the first segment, Dr. Jurist explained the target market for the webinar and his two presentations.  He then talked about how hard it was to go to Mars and do other missions.  Then he got to the point by saying in designing or configuring the launch system for a mission, you started with the payload requirements which then provide additional constraints once the payload has been defined.  He also talked about the application of the basic rocket equation and explained the importance of exhaust velocity, the Delta-v, and the mass ratio.  Listeners started asking questions so two stage compared to single stage was discussed.  John pointed to the Choices presentation, slide 8.  He talked about propellant and pressures, both in a pressure fed system and with a turbo pump system.  Another listener asked about solids versus liquids, then Marshall called to talk about rocket g forces.  Dr. Jurist talked about designing the rocket envelope environment to the payload specifications.  He then brought in and discussed the vibration envelope.  Helen asked how things would be different with a human payload rather than a satellite or cargo.  Reliability was a big concern.  Near the end of the segment, Dr. Jurist talked about payload mass in Leo and BLEO.  Doug inquired about the gravity loss during the launch, then the segment ended talking about heavy lift, solids and proportional cost factors for SRBs.

 

In the second segment,  Penny asked how the variable that had been discussed would change were one launch from the Moon or Mars.  Adrian emailed in about the NERVA rocket and nuclear propulsion.  Dr. Jurist used the German V2 as an example of launching from the Moon.  Specific impulse and exhaust velocity came up again, then the focus turned to rocket motor cooling systems.  Questions continued coming in asking about 3D printing of rocket motor parts to lower the cost and the use of hybrid rocket fuels with their advantages and disadvantages.  Regulatory issues came up in this segment as did political issues, plus our guest got a question about amateur rocketry.  A listener asked about environmental concerns over rocket fuel . Dr. Jurist directed the audience to the Choice presentation, slide 22, and talked about ways to possibly shed some weight such as dumping the payload shroud.  Near the end, John got questions about the Falcon Heavy, Doug called in with questions about lunar lander economics and more.  In closing, Dr. Jurist said “the fundamental theme of the presentation was the many variables that come into play in designing or configuring a space launch system, how the many variables are inter-related, and how every decision in the process constrains or narrows the remaining options.”

 

Please post your comments/questions on The Space Show blog above.  You can contact Dr. Jurist through me.

                                                       Choices

                                   Launch Vehicle Business Workshop

Dr. Guillem Anglada Escude, Friday, 4-24-15 April 25, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , , ,
add a comment

Dr. Guillem Anglada Escude, Friday, 4-24-15

http://archived.thespaceshow.com/shows/2460-BWB-2015-04-24.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest:  Dr. Guillem Anglada.  Topics, Gilese 581d, exoplanets, detection methods, physics, astronomy and more.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

 

We welcomed Dr. Guillem Anglada to the show from the UK to speak with us about Gilese 581d, exoplanet detection methods, specifically Doppler spectroscopy, and more.  During our one segment one hour discussion, Dr. Anglada explained to us why Gilese 581d (G 581d) has become a benchmark for the Doppler technique for finding exoplanets.  In explaining this to us, we also defined and talked about the habitable zone and why the Doppler technique works better for nearby stars as lots of light is needed.  We talked about the G system red dwarf or low mass star.  I asked our guest about telescopes and just how big a telescope had to be to see G581d for example.  At this point in the discussion, we began getting a series of email questions from listeners that were technical and superb.  I read them all on air ranging from asking about microlensing to occulters, to questions about our Sun and much more.  I asked Dr. Anglada what Earth would be like were we standing on G 581d and trying to detect Earth.  Do not miss his answer, it might surprise you.  Listeners also asked about the impact of the exoplanet field on students and if it was driving STEM enrollment.  We got two emails from a new country during this show as Michael sent in questions from Slovenia.  In one question, he asked about a free-flying coronagraph that could occult stars for direct imaging, especially for ground based telescopes.  There was more to his question so don’t miss it.  His other question was about detecting Oort cloud objects.  Our emailers asked about the transit method for finding exoplanets and our guest discussed alternative methods as well.  We talked about future exoplanet finding missions similar to Kepler such as TESS and PLATO.  Near the end of the show BJohn in one of his questions asked about the use of radio waves for finding exoplanets. This is a very informative and high level discussion with our guest who we will certainly have back on The Space Show.

 

Please post your comments/questions on The Space Show blog.  You can reach our guest through me or his university’s faculty page.

The John Batchelor Show Hotel Mars, Wednesday, 4-22-15 April 23, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , ,
1 comment so far

The John Batchelor Show Hotel Mars, Wednesday, 4-22-15

http://archived.thespaceshow.com/shows/2459-BWB-2015-04-22.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm

If you rate shows on live365.com, email me your rating reasons to help improve the show

 

Guests: John Batchelor, Dr. William Bottke, Dr. David Livingston. Topics: New theories on the creation of the Moon. 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. Please note that audio and transition issues are a result of copying the John Batchelor broadcast & are not within my control as they originate in the Batchelor studio.

 

John Batchelor and I welcomed Dr. William Bottke to Hotel Mars to discuss his work and new paper regarding a new theory on how our Moon was formed. You can read his paper in Science, “Evidence for Moon-Forming Impact Found Inside Meteorites at http://www.sciencemag.org/content/348/6232/321. During our segment, Dr. Bottke talked about this new work, high impact velocity, lunar creation, and more. Near the end, we talked about Ceres and our lunar similarities with dwarf planets.

 

You can email Mr. Batchelor or Dr. Bottke through me at drspace@thespaceshow.com.

Follow

Get every new post delivered to your Inbox.

Join 77 other followers