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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.

Space Show Webinar with Dan Adamo, Dr. John Jurist, Sunday, 11-25-12 November 24, 2012

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Space Show Webinar with Dan Adamo, Dr. John Jurist, Sunday, 11-25-12

Audio only:  http://archived.thespaceshow.com/shows/1900-BWB-2012-11-25.mp3

Video Stream:  http://vimeo.com/channels/thespaceshow

Guests:  Dan Adamo, Dr. John Jurist.  Topics:  Trajectory analysis to EML2, Mars, and 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.  You can view our webinar on our Vimeo Space Show channel, http://vimeo.com/channels/thespaceshow.  To follow along with Dan’s pdf, use

http://thespaceshow.files.wordpress.com/2012/11/adamo-eml2roundtripr2.pdf.  We welcomed Dan Adamo back to the program and Dr. John Jurist as co-host for this special webinar addressing trajectory analysis for an EML2 mission and more.  On The Space Show blog, you will find Dan’s PDF document used during the webinar, a link to the movie he played in the second half of the webinar, and his Phobos-Grunt analysis paper we discussed near the end of the webinar. During the first hour of the webinar, Dan took us through the trajectory analysis to Earth-Moon L2 per his PDF document.  We talked about why EML2, libration points in general, and how such missions are planned.  If the resolution on the webinar video for the charts and tables used during this segment are difficult to read on your computer, please bring the document up on the PDF on The Space Show blog and follow along that way.  Dan took us through Table 1, HALO orbits, and the HOI as well as the Trans-Lunar Insertion points.  We talked about orbital characteristics, delta V, rocket size, and more  We also talked about the position of the Earth, launch windows, the Moon, & other factors influencing the planning of the mission.  While at times the discussion may seem a bit technical or overwhelming for those of us having never done mission planning at this level before, all of us will certainly have a better understanding of the factors considered and influencing both robotic as well as human spaceflight missions.  Near the end of the segment, we talked about the SLS and heavy lift & how payload capacity interacts with mission & trajectory analysis. 
 
     In the second hour of our webinar, Dan took us through his HD movie of the orbital trajectory talked about during the first segment, stopping it at intervals for specific explanations and questions.  The movie is in the QuickTime format but you can see it both on the webinar or by using the URL provided on the blog.  We took several listener calls & questions.  One asked Dan about the differences in planning for the robotic vs. the HSF mission using MSL & Curiosity as an example.  Dan pointed us to a YouTube video he made a few years ago with Dr. Logan using these tools for a Deimos mission (www.youtube.com/watch?v=X10GAqA4Ky4). Another listener called wanting to know the likelihood of an EML2 mission actually happening.  Dan explained why he believed this mission to be the next stepping stone in HSF.  More was discussed about SLS with Dan raising some concerns about its real capabilities & wondering if Congress is being sold unrealistic expectations. We talked about heavy lift in general & with the support of properly placed depots.  SLS and the difference with a Falcon Heavy were also discussed in terms of what the differences would mean in payload, number of launches, costs, risks, etc. 
 
     Please post your comments/questions on The Space Show blog.  You can contact either guest through me.
 
Dan’s PDF document is here:  Adamo EML2roundTripR2
 
 
In addition, to watch Dan’s QuickTime movie which he will be using during the webinar, please click on this URL and then select the file format .mov:

 https://spideroak.com/browse/share/DanAdamo/EML2roundTrip

Note that you must have the QuickTime player to play this movie if you intend to download it. You can watch it from the above URL without the QT player.

 

Frank Stratford, Friday, 11-16-12 November 17, 2012

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Frank Stratford, Friday, 11-16-12

http://archived.thespaceshow.com/shows/1894-BWB-2012-11-16.mp3

Guest: Frank Stratford.   Topics:  Human spaceflight to Mars.  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 Frank Stratford of Mars Drive (www.marsdrive.com) to update us on his latest thoughts regarding human Mars missions.  You can read his latest Space Review article, “Which Way To Mars” from Oct. 22, 2012 at www.thespacereview.com/article/2174/1.  In this article and during our first segment, Frank put forth two options for HSF to Mars.  The first option he called the “miracle gift.”  The second option he refers to as “step by step.”  During this segment, Frank discussed both options in detail.  He talked at length about what is realistic and plausible compared to being in the realm of fantasy regarding humans to Mars. A listener asked him if the less than plausible ventures were a distraction or even if they were destructive to the effort to put humans on Mars.  Frank did not think so and citied YouTube hits for Mars advocacy & other groups as compared to a YouTube viral Korean song that is approaching 750 million hits (www.youtube.com/watch?v=9bZkp7q19f0). This made the point very clearly that space and even humans to Mars does not command the interest or attention of the public in any way like our pop culture.  Frank also stressed the need for collaboration with the Mars advocacy groups rather then each one going its own way.  He mentioned several different organizations and one that he is supportive of, The Mars Initiative (http://marsinitiative.org). Callers asked Frank about the Mars Direct plan as the segment was ending.
     In our second segment, we talked about how to finance a humans to Mars mission.  Frank used a $10 billion price tag saying there were only a few ideas that would come in less than that but given so many unknowns about a humans to Mars mission, it was almost impossible to budget such a mission.  He talked about using a Falcon Heavy, fewer flights using the SLS, a flexible financing path, and more.  He also mentioned the upcoming Mars Expo 2013 in the UK which you can read about on the Mars Drive website. As the program was ending, we talked about Mars Drive and the spin-off by one of the Mars Drive supporters, Mars Drive Lab.  At the end, I challenged Frank for his action plan, that is how to bring to life what we had been talking about.  You will find this a most interesting discussion.  Frank left us with a final selling point: “A humans to Mars mission brings us the technology and jobs of tomorrow today.”
     If you have comments/questions for Frank Stratford, please post them on The Space Show blog.

Josh Hopkins, Friday, 11-2-12 November 3, 2012

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Josh Hopkins, Friday, 11-2-12

http://archived.thespaceshow.com/shows/1886-BWB-2012-11-02.mp3

Guest:  Josh Hopkins.  Topics:  Stepping Stones for affordable human exploration missions & lunar far side exploration at Earth-Moon L2.  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 Josh Hopkins back to the show to discuss his Stepping Stones approach to affordable human spaceflight from Earth orbit to the Martian moons.  We also discussed exploring the lunar far side from the Earth-Moon L2 point.  In our first segment, Mr. Hopkins introduced us to a potential list of missions in sequence from LEO to the Moon and beyond.  We zeroed in on the lunar farside, both from the L2 Earth-Moon point and from the lunar surface.  Our guest focused our attention on the Aitken Crater Impact Basin and rock sampling for lunar and solar system science regarding different theories about the age and origins of the universe, all of which can tell us much about the Earth, the possibility for life elsewhere, and provide valuable science to further our understanding of the universe.  Mr. Hopkins was both detailed and comprehensive in this discussion, then we switched to robotic as compared to human missions, orbiting missions as compared to lunar surface missions.  Callers inquired about how such missions would be paid for and from which part of the NASA budget.  For example, does the NASA science budget fund the mission, does the cost come from the human spaceflight side if humans are involved, how would they share costs, & is there international cooperation.  One of the important issues brought up in this discussion dealt with the fact that in the science part of NASA, missions are competed for against one another, a process that seems to work well. Inquiring about mission competition with human spaceflight involvement is yet to be determined. Telerobotic missions were discussed and communication latency concerns were brought to our attention.  Josh talked about planned ISS telerobotic demos back on Earth at NASA Ames & with ESA.
      In our second segment, Josh talked about orbital telerobotic cost issues as compared to being on the lunar surface. A listener wanted to know about traversing the Moon from a habitat to the farside & Josh explained the challenges in doing that.  Josh talked in some detail about a radio astronomy observatory at the L2 point & on the lunar surface.  He talked about noise issues at each location & the advantages each brings to the table. Josh was asked about lunar tourism & its potential impact on a radio telescope observatory on the farside. A listener asked about the Google Lunar X Prize for sample return, another inquired about the lunar space elevator, and yet another called in to ask about Stepping Stones as part of the Flexible Path. ISRU lunar development was also a discussion topic.
     Please direct your comments/questions to The Space Show blog URL above.  If you want to email Josh, you can do so through me.  Visit www.lockheedmartin.com/content/dam/lockheed/data/space/documents/orion/SteppingStones.pdf for more information on the Stepping Stones concept.
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