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Dr. Doug Plata, Monday, 7-13-15 July 14, 2015

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Dr. Doug Plata, Monday, 7-13-15

http://archived.thespaceshow.com/shows/2506-BWB-2015-07-13.mp3

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Guest:  Dr. Doug Plata.  Topics:  Achieving Early Earth Independence with space settlements.  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. Doug Plata back as our guest to discuss his paper which is on TSS blog for your perusal, “Achieving Early Earth Independence Through ISRU and Sufficient Supply.  During the first segment of our 1 hou 45 minute program, Doug told us the genesis of his ideas and concepts culminating in his submitting his paper to the NASA Challenge InnoCentive Challenge (www.innocentive.com/ar/challenge/9933746).  After referencing the NASA Challenge, Doug started describing his ideas in detail.  Much of what he described he said was summarized in the Introduction of his paper.  We talked about both the Moon and Mars but Doug explained that the competition was focused on Mars so he also focused on Mars though he still supports the Moon and cislunar development as the rational and initial starting points.   Issues he discussed included supplies, types of potential habitats, the definition of and clarifications for mass independence including defining both self-sufficient and self-sustaining.  He also brought up the earth return option and more.  BJohn sent in several questions but his initial one asking about becoming 90% Earth independent led to a most interesting discussion.  While Doug’s paper does not have page numbers, check out Table 3, “Estimated Equivalent Mass Independence.  Doug took us through the critical numbers and his analysis so don’t miss this important discussion.

 

In the second segment, Doug suggested three rationales for the settlement.  One was to push technologies needed for sustainable living in space.  The second was the big one according to his perspective and focused on reducing the resupply costs for the settlement.  The third one was also big and focused on assuring survival of the human species.  He discussed each rational in detail.  As part of the discussion, he referenced a space settlement as an insurance policy for humans, he talked about the earth return option, radiation, GCRs,  and more.  He also showed that by leaving the crew on Mars for an extra year, the mission would be less costly.  Listen to his discussion about this and see if you concur with him.  Doug was asked about the previous program with Al Globus and LEO settlements, especially over the equator.  He said that such settlements, while potentially interesting, cannot be self-sufficient or Earth independent and his focus was on gaining Earth independence.  Again, don’t miss this discussion.  Gravity, artificial gravity and spin rates were discussed as was the concept of self-sustaining versus self-sufficient for a colony.   Doug advocated for using the word colony rather than settlement but I took issue with that, especially if one hopes to communicate with people including Congress outside the space industry.  As the show was ending, Paula asked Doug about the fact that space settlers may not want to achieve Earth independence and it seemed his work was formulated around the assumption that everyone wanted Earth independence ASAP.  This was a great last question and discussion.  Doug provided a good summary of today’s discussion as we closed the show.

 

Please post your comments/questions on TSS blog above.  You can reach Dr. Plata through his websites or me.

 

Dr. Cameron Smith, Monday, 2-2-15 February 3, 2015

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Dr. Cameron Smith, Monday, 2-2-15

http://archived.thespaceshow.com/shows/2406-BWB-2015-02-02.mp3

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Guest:  Dr. Cameron Smith.  Topics:  Interstellar human spaceflight, space settlement, our distant human future.  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 http://www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed Dr. Cameron Smith to the program to discuss interstellar spaceflight and our distant human future.  You can see his lecture on this topic, “Interstellar Voyaging: An Evolutionary Transition” at http://www.youtube.com/watch?v=CprziVZHqBk.  During the first segment of our 91 minute program, we talked about the biological and cultural challenges involving interstellar flight.  When asked why he was interested in this field and doing research in it, he talked about how important it was to influence for the good our distant human future.  He talked about human success over time in adaptation as humanity is adaptable.  He then spoke to the need for species insurance.  John in Florida called in with Mars archaeological questions, wondering what may be left of a civilization after a billion years or so. We also talked about models from Earth archaeology around the world in places like the Middle East.  Our guest said there were plenty of unknowns in trying to extrapolate Earth archeology to Mars.  Another listener asked about robots versus humans, a topic our guest had much to say about.  The bottom line is that humans are still a much better tool but robots are also needed.  We talked about ways to influence policy makers and the importance of influencing the public.  You might be surprised by some of our guest’s comments.  We talked about Mars and he said it was a good first step.  He was then asked about the Moon as a first step.  He cited a comment by Dr. Zubrin suggesting that regarding the Moon, “the cops are too close!” Listen to how our guest explained this comment.  I asked several questions about student interest in interstellar spaceflight.  Other topics in this segment included extra terrestrial life and questions about Cydonia which our guest said he had studied in detail and concluded it was not from a past civilization.

In the second segment, Cydonia questions continued to come in and Dr. Smith elaborated on his studies and conclusions.  The Swedish website Glanta came up as our guest had an article published on the site. Their English language site is http://glanta.org/?page_id=2.  The ISS came up with listener questions and our guest was critical of it since it still does not have closed loop environmental and life support.  The field of exobiology was discussed as was the need for low cost space access.  Paula in Denver asked about the need to be inspiring and to inspire students and others regarding space, interstellar flight, and our distant human future.   Cameron said we needed to start with kids and that it was important to do so.  He also spoke to the need to make sure our students have and know how to use the skills of critical thought.  The ARM came up and Cameron said it make no natural sense.  He also said we should be getting serious about going to Mars.  During the show he was asked why this was important, going to Mars, human spaceflight, interstellar flight, all of it.  He cited the need to have a humanity insurance policy as from studying the past as he has done in his field, he is all too familiar with species, nations, cultures, and such becoming extinct.  It does happen and space settlement and interstellar human spaceflight are the insurance programs for our survival.  His concluding remarks repeated saying that space colonization was a responsibility, not a luxury.

Please post your comments on TSS blog above.  You can reach Dr. Smith through me or his university website, http://pdx.academia.edu/CameronMSmith.