Tags: cryogenic propellant transfer, Falcon Heavy, GEO, Hu Davis, ISS, KIBO Japanese ISS Module, LEO, NASA, nuclear propulsion, orbital refueling, public opinion, Return to the Moon, reusable launch vehicles, SLS, space education, space infrastructure, space policy, space policy advisors, Space Shuttle, space solar power, SRBs, SSP economics, SSP engineering, U.S. congress, U.S. space leadership, William (Bill) Ketchum
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Hu Davis and William (Bill) Ketchum, Sunday, 5-5-13
Guests: Hu Davis & William (Bill) Ketchum. Topics: Space infrastructure, SSP, SLS, Falcon Heavy, reusability, space policy and U.S. space leadership. 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 Hu Davis and Bill Ketchum to the program to discuss the need for space infrastructure development, SSP, and a space leadership policy by the United States. In the first segment of our 91 minute program, we talked about the need for space infrastructure development, reusable rockets, and space solar power. Our guest Hu Davis has a Power Point presentation on SSP that will be uploaded to The Space Show blog summary so don’t forget to check it out on the blog. I will also upload to the blog Bill Ketchum’s pdf paper, “What Will America Do In Space Now?” We discussed the history of various space infrastructure studies and efforts and the same for SSP studies, pointing out how new technologies, engineering methodologies, and sophisticated manufacturing have made many projects cost effective today when that was not the case years ago. Our guests fielded several questions from listeners about the SSP business case, reusability and the SLS compared to the Falcon Heavy. Doug asked about the use of in space resources & our guests suggested that for SSP for example, using in space resources could account for 90% SSP components. Questions were asked about the land cost and the use of rectennas.
In our second segment, we talked about nuclear propulsion and tax/economic subsidies to our current terrestrial energy industry which make it harder to develop SSP. We talked about the problem and the lack of viability for SLS. Questions came in regarding on orbit propellant transfer and cryogenic transfer development. As our program was ending, our guests talked about space education outreach, persuading congressional leaders and the public to support space infrastructure development, SSP , and more.
Please post your comments/questions for our guests on The Space Show blog and I will make sure they know about them. You can email either of our guests through me at Drspace@thespaceshow.com.
Dr. Roger Launius, Friday, 11-30-12 December 1, 2012Posted by The Space Show in Uncategorized.
Tags: " NASA Aeronautics Book Series, " SpaceX, "Coming Home: Reentry and Recovery from Space, ballistic reentry, capsules, Dr. Roger Launius, Earth Science Missions, Gerard O'Neill, giggle factor, heavy lift, human spaceflight, magical thinking, Mars winged vehicles, NASA budget, NASA spinoffs, Orbital, RLVs, sequestration, SLS, Smithsonian Air and Space Museum, space infrastructure, space policy, space radiation, space settlement, Space Shuttle, spaceplane fantasies, suborbital, Utopian Thinking with space, V2, winged space vehicles
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Dr. Roger Launius, Friday, 11-30-12
Guest: Dr. Roger Launius. Topics: “Coming Home: Reentry and Recovery from Space” by Dr. Launius, space policy issues, magical thinking. 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 welcomes Dr. Roger Launius back to the program to discuss his latest book, “Coming Home: Reentry and Recovery from Space” which is a free download at www.nasa.gov/pdf/695726main_ComingHome-ebook.pdf. During our first segment, our guest provided us with a short history of resolving challenges with reentry from space with human spaceflight. We discussed winged vehicles and capsules from a historical, practical, and engineering perspective. We also talked about DOD influence and the advantages as well as disadvantages of both types of space vehicles. One listener question asked about winged vehicles evolving from suborbital to orbital HSF. Terry called in with ballistic reentry questions about the V2 rocket & we mentioned museum locations where people can see a complete V2 on display. Another listener wanted to know if there were any winged vehicle concepts for Mars. Here, our guest talked about some science fiction examples but nothing for real on the drawing board. Our guest then introduced us to magical thinking and we talked about reality in space exploration as compared to fantasy. As this segment was ending, we talked about RLVs and reentry issues.
In our second segment, we started off talking about the NASA budget and the potential impact of sequestration. Our guest said human spaceflight is the biggest challenge and in fact at one point he said we were just one banana peel away from losing HSF! This was in the context of access to the ISS with only the Soyuz and how fragile the access was until we had multiple ways of getting to the station. We then discussed risk and some of the issues raised on this subject by other Space Show guests that believe we need more risk to advance human spaceflight. Risk was also discussed in the context of hypothetical ISS recue missions with HSF vehicles not yet ready for prime time. We also talked about the value and purpose of HSF, including should settlement really be the purpose of it. We had a lengthy discussion on this subject. Both Roger and I suggested the purpose of HSF is a challenge, can be illusive, and is probably something larger and broader than space settlement. Don’t miss his explanation behind his thinking. We also talked about spinoffs as a reason for HSF, the we addressed the lack of needed infrastructure, radiation issues, etc. Toward the end, we took some questions about SLS and heavy lift. Jane asked our guest about the visitors to the Air and SpaceMuseum at the Smithsonian & if Roger could infer an increase or decline in the interest in space by the visitors or if the visitors had an awareness of the challenges facing NASA and HSF.
Please post your comments/questions on The Space Show blog. You can email Dr. Launius through me.