Broadcast 2278 (Special Edition)

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Guests: Dr. John Jurist, Dr. Jim Logan. Topics: EVAs, spacesuits, Moon, Mars, radiation, Aquarius HSF launch vehicle Space Enterprise Institute. Please direct all comments & questions regarding Space Show programs/guest(s) to the Space Show blog, Comments & 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 For those listening to archives using &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 both Dr. John Jurist and Dr. Jim Logan back to the show to discuss spacewalks (EVAs), spacesuits, human missions to the Moon and Mars, to the Martian Moon Deimos, the newly created Space Enterprise Institute, & the new Aquarius Reusable Human Spaceflight water based launch vehicle. During the first segment of our 2 hour 5 minute program, our guests started talking about EVAs. Early in the discussion, Dr. Logan provided us with important & interesting statistics regarding EVAs, then we discussed the challenges with them and spacesuits. We talked at length about the difference in EVAs and spacesuits for the Moon, LEO, asteroids, & Mars. We also talked economics for spacesuits given the need for a specific spacesuit depending on the destination/mission. We talked about new designs for one size fits all & for mitigating dust problems. Jim talked about the medical complications regarding both lunar and Martian dust. Our guests then suggested that EVAs will likely be phased out for robotic missions. Doug asked several questions about this via email. Also, Jim suggested that EVAs will evolve to the concept of Forward Deployed Humans in the Loop for Telerobotic Operations. This concept was discussed several times throughout our program. In our second segment, Jim started with an announcement about the Space Enterprise Institute (SEI). When it goes live in the next week or so, I will announce it on the show so you can follow it He explained SEI, its purpose & goals. He then talked about the concept that both Jim and Dan Adamo have developed over the past few years, Aquarius which is a reusable water-based interplanetary HSF transport. As soon as the SEI website is online, listeners will be able to download their peer reviewed paper for free. During this segment, Jim talked about Aquarius, John added in some details, we talked about the need for nuclear electric propulsion and why, plus the role of water with this launcher. Both our guests explained the advantages of Deimos for the early missions, plus the return shielding and reusability as the return goes to a lunar orbit using existing water. Radiation shielding was talked about, including the needed water and needed Radiation Protection (RP) levels. John pointed out one advantage of Aquarius was the use of an open loop life support system. John in Ft. Worth called about the temperatures that Jim said were needed. Jim explained the need for 3,000 degrees C. Both guests offered closing comments about EVAs & the direction we might be heading toward the forward deployed humans concept. Both guests said the telerobotic concepts discussed would reduce risks, timelines, & overall mission costs. Post your comments/questions on TSS blog. You can reach our two guests through me.



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13 Jul 2014 Dr. John Jurist, Dr. Jim Logan
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