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Dr. Erik Seedhouse, Monday, 6-1-15 June 2, 2015

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Dr. Erik Seedhouse, Monday, 6-1-15

http://archived.thespaceshow.com/shows/2484-BWB-2015-06-01.mp3

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Guest: Dr. Erik Seedhouse. Topics: Mars, radiation, return to the Moon, Virgin Galactic, ISDC, suborbital industry & 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. Erik Seedhouse back to the show for a variety of timely discussion topics. During the first segment of our 1 hour 37 minute program, Erik started out making comparisons with past polar exploration and going to Mars. He also said that going to Mars anytime in the foreseeable future would be a survival trip. We talked about Erik’s books on Virgin Galactic, Polar Exploration and Mars which will soon be released, and additional books on Dragon, Mars One, Mars via the Moon, and XCOR, all to be released over the coming months. Erik then spoke about his ISDC talk re comparing polar exploration to going to Mars and commented on the speaker following him, Dr. Logan (he was not sure of the first name but we think it was our friend, Dr. Jim Logan). He talked about radiation shielding and water per what Dr. Logan had to say including the need for 10 meters of water shielding to equal the protection here on Earth. Erik had much to say about radiation and shielding which prompted multiple emails from Dr. Doug in S. California seeking clarification and adding to Erik’s comments. I read all of Doug’s radiation themed emails throughout the first and second segment of today’s program. Don’t miss Erik’s conclusions regarding the radiation risks and shielding needs for a Mars mission, how astronauts would live and work on Mars as well as the Moon. Erik next talked about Virgin Galactic and XCOR saying he thought XCOR would be the first to fly commercially. When asked about the biggest passenger risk on a suborbital flight, Erik said it would be the cardio-vascular risks. Erik got questions regarding SpaceX, Elon Musk, and the Mars Colonial Transporter. He again stressed the way to go to Mars was via the Moon and that would be his preferred space policy. He also put forth his Mars simulation study plan. Don’t miss it, I think it’s a good one.

In the second segment, John from Florida called to comment on delays and how long commercial suborbital flight was taking since the success of Spaceship 1. John seemed to compare the lack of progress with suborbital flight to how much progress was made with aviation and in particular jet travel. I took the first pass at responding to him, then Erik offered his comments. What do you think? Let us know on the blog. Erik was then asked about other human factor issues than radiation. Dr. Seedhouse went through a laundry list of health risks and concerns for astronauts in deep space and on long duration spaceflight. He was then asked about the regulatory regime for suborbital space, then he wanted to define space given Virgin Galactic may not flight beyond 50km which is not space. Don’t miss what he had to say about this and the overall health risks for astronauts in deep space. Near the end of the show, Erik addressed space settlement. He said it would be a natural expansion and would happen automatically with returning to the Moon and going to Mars via the Moon. In his concluding comments, he suggested that advocates and space enthusiasts need to adjust expectations and understand the technology involved because its harder and more costly to do things in space, including suborbital space, than originally thought and expected.  

Please post your comments on TSS blog above. You can reach Dr. Seedhouse through me @ drspace@thespaceshow.com.


 

Heather Archuletta, Tuesday, 1-8-13 January 9, 2013

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Heather Archuletta, Tuesday, 1-8-13

http://archived.thespaceshow.com/shows/1926-BWB-2013-01-08.mp3

Guest: Heather Archuletta.  Topics:  NASA bed rest and simulation studies.  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.  We welcomed Heather Archuletta to the program to discuss her first hand experiences with three NASA bed rest studies plus her recruitment work for new NASA study applicants.  Heather is known as the Pillow Astronaut.  Check out her website at www.pillownaut.com and her blog at http://pillownaut.blogspot.com. Our discussion was divided into two segments but this summary will not reflect segments since many of the same themes and topics overlapped the two segments. I believe this to be a very informative and a very entertaining Space Show program offering a comprehensive and insiders view of a subject we have not covered in any detail on any of our programs in our broadcasting history. We started out with Heather explaining the bed rest simulation studies, the different kinds of studies, and the basic qualifications to participate in a study.  We talked about studies ranging from 24 days to 100 days.  Heather was terrific about explaining the protocols to us, what each day was like, what the food was like, the ongoing medical testing, the helpers that did practically everything for the participants, plus the type of recreation they had given they all had to remain in their beds in the position required by the specific study.  We talked extensively about the recreation from reading to movies, to being able to get fresh air outdoors, to using computers, webcams, and phones.  Heather also explained the personal and privacy issues all the participants had to comply with and experience.  If you embarrass easy, these studies are likely not for you.  Diet was a big part of the study and our guest explained how tightly controlled the diet was and how it was made to order for each participant.  In response to questions about the application and process, we learned about the medical and psychological screening, bone scans, etc.  There was also outreach to family, friends, and significant others as there were strict rules about visiting and of course applicants did not need opposition by those in their lives.  The goal of these studies, as you will hear, was to work toward developing counter measures for the effects of microgravity on bones.  Physical intervention techniques such as exercise were tested as well as chemical mitigation techniques depending on the nature of any given study.  Several listeners asked why the participants chose to do this.  One listener asked how Heather talked with the general public to get them to see that spaceflight was worthwhile.  Don’t miss this discussion, it’s a good one.  Making a difference and helping to pave the way for long duration human spaceflight were important reasons given by the participants for enduring the study constraints and protocols.  Heather went over the basic medical and physical requirements for being a participant and she talked about her getting others interested in the studies given her own experience with three studies.  She uses social media for outreach and also various conferences and speaking engagements.  Heather also told us about the pictures on her blog, including pictures of her doing the studies in her bed.  Scroll down on her blog for more information and the pictures. Also, there are journals on the blog regarding the day to day activity in the study.  We learned that reading was a favorite activity as was working on laptops.  When Heather was asked about pets coming to visit them with family members when visiting was possible, we learned that some of the participants kept fish with them in their rooms but no dogs, cats, or birds.  Later in the discussion, she talked about the use of smart pills in some of the studies.  She mentioned the founder of the bed rest studies, Dr. Duane Graveline and she told us how the bed rest  and water immersion studies came about. Heather also said that the term “sleep study” was incorrect as the participants were not there to sleep!  We learned that when the study ended, there was about a two week rehab period for the person to be able to function again.  Sometimes the participants could not drive for up to three weeks after the study ended.  Listeners asked Heather how accurate the simulations were compared to what the astronauts experienced on the ISS and the space shuttle.  As you will hear, these studies appear to be excellent analog studies to actual spaceflight.

  One additional point and that is we talked about the Whitehouse.gov petition on nuclear propulsion. For those of you interested in this petition, you can get information about it at http://cosmiclog.nbcnews.com/_news/2013/01/08/16385852-nuclear-power-in-space-petition-asks-white-house-to-rekindle-project.

     Please post your comments/questions on The Space Show blog.  You can email Heather through me or through her website and blog.