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Dr. Linda Spilker, Monday, 11-30-15 December 1, 2015

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Dr. Linda Spilker, Monday, 11-30-15

http://archived.thespaceshow.com/shows/2595-BWB-2015-11-30.mp3

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Guest:  Dr. Linda Spilker;  Topic: NASA’s CASSINI mission to Saturn and its planned ending.  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. Linda Spilker to the program to discuss the NASA Cassini mission to Saturn, Cassini Saturn discoveries, and more.  Note that our program was 66 minutes in length in one segment.  We started our discussion with Dr. Spilker doing a quick overview of the Cassini mission.  It took seven years to get to Saturn and has been flying around the Saturn system for11 years since July 1, 2004.  Cassini will run out of fuel with a spectacular final mission in September 2017 which we discussed later in the show.  Dr. Spilker talked about the design and budget compromises made with Cassini, the mission plan or the Cassini “tours,” the protests against Cassini due to the NTG aboard the spacecraft, plus the path it took to get to the Saturn system.  I asked Dr. Spilker for the highlights so far regarding Cassini discoveries so don’t miss what she had to say about this given there have been so many great findings and discoveries.  We also talked orbital dynamics for Saturn orbiting the sun (1 orbit=30 Earth years) and Cassini orbiting Saturn or touring the rings or the moons.  Highlights included the polar geysers discovered on the moon Enceladus, the mysterious red streaks on a smaller moon, Tethys, plus countless discoveries about Saturn’s ring system.  Linda had much to say about Titan and the Huygens Probe and its camera limitation due to a question by Dr. Doug.  We also talked about finding organics in the Saturn system, the possibility of life, &  comparisons to Mars and Europa.  Ben asked if the huge gravity field of somewhat nearby Jupiter had an impact on Saturn.  Sherry wanted to know if NASA, JPL, or members of the Cassini team ever heard from the NTG protestors with apologies given the great success of Cassini.  I bet you can guess what Dr. Spilker said in reply to Ben.  Our guest was also asked if a future mission could be done using solar rather than an NTG.  While Linda was not certain of it, she did say that great advances have been made in solar panel effectiveness, storage, etc. NASA is looking into the possibility of doing a Cassini like mission using solar power.  Karen wanted to know how long it took Cassini to orbit Saturn.  The answer required knowing the specific tour Cassini was undertaking at the time but anywhere from 6-7 days to a few months depending on the tour.  I asked Linda how JPL planned these tours so don’t miss how this is done and how a mission is planned for a spacecraft such as Cassini.  Doug emailed in another question about possible ion propulsion usage and Burton in Montreal wanted to know if a Saturn probe mission might be part of the new NASA New Frontier Mission group being planned.  Many times during the show Linda referenced building on the shoulders of the Voyager spacecraft and its Saturn system information.  Todd talked about the end of Cassini which prompted Linda to describe the final mission plan for this terrific spacecraft. You can read about this final mission at http://news.discovery.com/space/cassini-grand-finale-nasas-saturn-missions-daring-end-140707.htm.  John in Philadelphia was the last to ask a question as he wanted to know the size and shape of Cassini, what it looked like.  Linda did a great job explaining the size and shape, and schematic for Cassini.

 

Please post your comments/questions on TSS blog above.  Linda can be reached through JPL or The Space Show.

CAP Saucier, Monday, 4-6-15 April 7, 2015

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CAP Saucier, Monday, 4-6-15

http://archived.thespaceshow.com/shows/2447-BWB-2015-04-06.mp3

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Gust:  CAP Saucier.  Topics:  CAP’s new book, “Explore The Cosmos Like Neil deGrasse Tyson plus biographical information about Dr. Tyson, science education.  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 CAP Saucier to the program to discuss her new book, “Explore The Cosmos Like Neil deGrasse Tyson.”  For more information about our guest and her work, visit her website, www.capsaucier.com.  During the first segment of our 1 hour 27 minute program, CAP introduced us to her new book and how she met Dr. Neil deGrasse Tyson plus her interviews with him for this book.  Note that this book was a five year project in the making.  I asked her for a few things that she thought stood out with Neil.  One was that he does not have role models. Instead, he has mentors.  We spent some time discussing this and the differences between the two.  Regarding his mentors, Sir Isaac Newton and his parents stood out and were a the top of the list.  During our discussion we went back and forth in talking about Dr. Tyson and the science message in her book which was targeted toward middle school students.  Listeners asked our questions about the level of our scientific knowledge and if Dr. Tyson commented on that.  He did comment and this proved to be a continuing topic throughout our program.  We talked about favorite parts of the book, Neil’s favorite planet and CAP being able to see Andromeda through a telescope at Kitt Peake. This is an interesting story, don’t miss it.  In response to another listener email, CAP said that Neil’s priority was defending against incoming asteroids.

 

In the second segment, we started off talking about science education in the U.S. Our guest said we ranked in the lower half in science education among educated countries. This led us to discussing STEM and the newer form, STEAM.  The “A” is added for Art.  We both talked about the importance of art in addition to the traditional STEM topic.  We talked about where we come from in the cosmos, supernovas, and science fact, all in the context of science fact.  Note the email question from Adrian on this subject.  I asked CAP if we needed to start with better science education in grade school but she said middle school was a good age, around 4th and 5th grade.  CAP introduced the topic of evolution and said it needs to be brought back to science education.  CAP the spoke to her literary style which has been to tell a story through a biography.  In both segments, the subject of the Next Generation Science Standards came up.  Our guest had much to say about them.  Check ou the website,  www.nextgenscience.org/next-generation-science-standards.  Toward the end of the show, listener Pauline in Fargo wanted to know if Neil wanted to go to space.  Don’t miss her answer.

 

Please post your comments/questions on TSS blog above.  You can reach CAP through her website or me.

Dr. Arlin Crotts, Monday, 2-16-15 February 17, 2015

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Dr. Arlin Crotts, Monday, 2-16-15

http://archived.thespaceshow.com/shows/2416-BWB-2015-02-16.mp3

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Guest:  Dr. Arlin Crotts.  Topics:  Lunar exploration, commerce, & human development in addition to many related topics.  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. Arlin Crotts back to the show to discuss his new book, “The New Moon: Water, Exploration, and Future Habitation” plus lunar related science and development issues & concerns. For more information, visit Dr. Crotts website, http://user.astro.columbia.edu/~arlin/research.html.  In the first segment of our 93 minute program, I asked Dr. Crotts to summarize lunar science and development progress since his last appearance on TSS, Oct. 27, 2009 through today.  Dr. Crotts had much say in this summary, especially with lunar water, hydroxyls, minerals, LCROSS, volatiles, and more.  Don’t miss this summary. Listeners asked many questions about INSITU Resource Utilization on the Moon, polar ice, water ice, volatiles, fuel possibilities, and more.  I asked if he had detected an increase in the public’s awareness of the Moon and many of these issues plus I wanted his thoughts on the private sector commercial opportunities and plans opening up for the Moon.  The balance of this segment featured calls and listeners emails asking about the lunar poles, volatiles, craters & the Resolve Mission.

In the second segment, Dr. Crotts was asked about the Lunar Mission One Kickstarter project and their wanting to drill 100m into the Moon.  Dr. Crotts did not comment on the project but did talk about why we needed more and deeper lunar drilling exploration.  Our guest also talked about his book in detail in this segment, saying it was very detailed, well documented and supported, and that readers would learn things about the Moon not previously known or written about given his access to original lunar exploration and Apollo documents.  Other topics in this segment addressed humans to Mars or the moons of Mars, the timing of human lunar settlement which he supported but not until we know much more about the Moon to do it safely and correctly.  We talked about this approach in some detail.  Space settlement was discussed and he said it would happen sooner or later but that we needed more lunar science first before we settled the Moon.  Near the end of the segment, Dr. Crotts was asked about NASA’s ARM project.  Space mining came up and then just before the program ended, Eric inquired about Transit Lunar Phenomena (see http://user.astro.columbia.edu/~arlin/TLP).  Tim was our last caller asking about the use of RTGs.  Dr. Crotts talked about reactors on the Moon and mentioned the smaller Toshiba 4G reactor.

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

Michael Soluri, Friday, 12-12-14 December 13, 2014

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Michael Soluri, Friday, 12-12-14

http://archived.thespaceshow.com/shows/2374-BWB-2014-12-12.mp3

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Guest:  Michael Soluri.  Topics:  Hubble Repair Mission STS-125 as portrayed in his book, “Infinite Worlds.,” NASA & 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 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 author and photographer Michael Soluri to the show to discuss his behind the scenes documentary work for STS-125, the final Hubble Space Telescope repair mission and his book, “infinite Worlds.”  During the first segment of our 90 minute discussion, Michael provided us with the background on how he was able to go inside NASA, be with the STS-125 crew, and photographically document all aspects of the final Hubble Space Telescope Repair Mission.  His book “Infinite Worlds” is truly a behind the scenes photographic documentation of this mission, a must have book as you will hear me say throughout the program.  Remember, if you buy it through TSS/OGLF Amazon portal detailed on all archived programs and both websites, Amazon makes a contribution to TSS.OGLF.  Listeners asked Michael many questions about the STS-125 crew regarding risk, safety, the rescue mission that was on the pad ready to go and more.  Michael also told us about asking the veteran crew members about the quality of light in space so better space pictures could be made.  This led to a workshop where Michael helped the crew in looking at things in space differently to get better and different pictures.  Michael talked about the support he got from Goddard, seeing the training in the Hi Bay clean room and even meeting and talking with the crew families.  We talked about the initial mission cancellation, then the reinstatement by Mike Griffin.  Michael also worked in his early documentation work on the New Horizons mission to Pluto, a mission he is still documenting as we await the July 2015 arrival at the planet.  He was also asked about the James Webb Space Telescope  and if he thought it might take up and continue in our culture as much as Hubble has been a part of our culture.

In the second segment, we talked about on orbit servicing and the essay in his book by the father of on orbit servicing, Frank Cepollina.  Michael then told about the Hubble tools and how unique and artistic they were being all rounded with features designed for use when wearing a pressure glove in space, not for use here on Earth.  He also told us about being able to photograph the tools in the Hi Bay which he did as objects of art.  Later on in the segment, we talked about the end of the space shuttle, the modern capsules replacing it from SpaceX and the other companies, and the difference with a transportation system which is what is being developed today and the space system which has been lost due to the shuttle retirement.  Michael was asked by another listener about the space entrepreneurs.  He has not had contact with them but says they are different from earlier space venture participants as they are all about business and making money and the business types don talk about “poetry.”  Our guest was asked about NASA public outreach and inspiration and for the most part he said that we had to do that for space, not NASA.  We need to be persistent, to inspire, to be passionate.  He said not expect those within the organization to do it.  The taxpayers themselves need to do it.  Michael offered us interesting concluding comments and thoughts so don’t miss what he had to say.

Please post your comments/questions on TSS blog.  You can reach Michael Soluri through me or his website, http://www.michaelsoluri.com.

The John Batchelor Show Hotel Mars, Wednesday, 10-8-14 October 9, 2014

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The John Batchelor Show Hotel Mars, Wednesday, 10-8-14

http://archived.thespaceshow.com/shows/2332-BWB-2014-10-08.mp3

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Guests: John Batchelor, Dr. Heather Knutson, Dr. David Livingston. Topics:  Exoplanet HAT-P-11b with clear skies and atmospheric water vapor.  You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Written Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright. We do not permit the commercial use of any Space Show program or part thereof, nor do we permit Space Show programs to be edited, placed on YouTube, or other private channels & websites. Space Show programs can be quoted in news articles, papers, academic & research work but must be cited or referenced in the proper citation format. Contact Dr. Livingston for questions about our copyright and trademark policies which we do enforce. This program is archived on The Space Show website, podcasting, and blog sites with permission from John Batchelor. Please visit the John Batchelor Show website for more information about this fine program, www.johnbatchelorshow.com.  Remember, your Amazon Purchases Can Help Support The Space Show/OGLF (www.onegiantleapfoundation.org/amazon.htm).  For those of you listening to archives on live365.com & rating the programs, please email me the reasons for your rating. This will definitely help improve Space Show programming. Thank you.

We welcomed Dr. Heather Knutson to Hotel Mars for our discussion about Exoplanet HAT-P-11b given it has been discovered that this planet has clear skies and water vapor in its atmosphere. Dr. Knutson explained how clear skies and atmospheric water vapor was confirmed, what it means for this specific Neptune size exoplanet and what it means for our planet searches in general.  We talked about it having a hot atmosphere, a core but not a solid surface.  The exoplanet is not habitable.  HAT-P-11b is 120 light years from Earth.  Dr. Knutson also explained why so many exoplanets have a cloudy atmosphere and why that limits our research into the exoplanet.

Please post any comments/questions you might have on The Space Show blog. You can contact any of  us through me.

Dennis Wingo, Tuesday, 10-15-13 October 16, 2013

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Dennis Wingo, Tuesday, 10-15-13

http://archived.thespaceshow.com/shows/2105-BWB-2013-10-15.mp3

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Guest:  Dennis Wingo.  Topics:  Space policy & budgets, commercial space & entrepreneurism, wealth creation.  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.

We welcomed back Dennis Wingo for this 90 minute discussion regarding space policy, budgets, commercial space, space entrepreneurism, cubesats, ISS, and much more. In our first segment, Dennis discussed his recent article, “NASA Will Face Solomon’s Choice in 2014” posted on Oct. 2, 2013 at http://spaceref.com/missions-and-programs/nasa/nasa-will-face-solomons-choice-in-2014.html.  In this article and in our discussion, our guest focused on the probability of NASA budget cuts in the current environment and the probable impact upon the agency.  Thus, NASA or Congress might find that they have to make a Solomon like choice for program funding between SLS/Orion or the ISS.  Listeners wanted to know if cutting commercial crew would give NASA sufficient funding for the other two programs.  The short answer was no but listen to the full explanation provided by our guest.  Dennis then talked about both SLS and ISS and the commercial & entrepreneurial future now developing with ISS with small satellites and space start-ups.  Referencing recent comments by Dr. Griffin, Dennis said in a perfect world with wise political leadership, we would be funding all sorts of space development projects as they create wealth, open the doors for businessmen and women with abundant opportunities and so much more but for the past 40 years he said we have not had wise political leadership. Instead. rather than investing in our future, politicians have invested in buying votes.  He talked about this issue throughout the balance of our program.  Dennis mentioned he was doing tonight’s program aboard the icebreaker Maritol docked at Pier 50 in the SF Bay.  The Maritol has become a hacker space and business incubator for small satellite and related space businesses.  In the second segment, he went into more detail about the Maritol and the eviction threat it is facing from the SF Port.  He also talked about GEO being a huge market but very costly which is why the focus is now on small satellites and developing profitable, cost effective businesses and models.

In our second segment, Tim called with several SLS, ISS, and 3 D printing questions, including asking how much mass was needed to build a Moon base.  We then talked about capital acquisition and the characteristics of ventures funded by Silicon Valley venture capital financiers.  Dennis said the timing was now right and we should adopt the zero g zero tax bill, and that we should be implementing the JOBS Act Title II which allows for crowdfunding investment.  Read about it at http://venturebeat.com/2013/09/23/crowdfunding-with-jobs-act-title-ii-the-web-will-eat-financing-and-investing.  John called in to express his views on the Solomon’s Choice options, then we talked some more about the Maritol docked at Pier 50.  Here are some articles about it: http://arstechnica.com/tech-policy/2013/10/startups-aboard-icebreaker-ship-could-face-eviction-soon-san-francisco-says (this article talks about its possible eviction & has a link to the petition you can sign to keep the Maritol in the Bay);  www.forbes.com/sites/rakeshsharma/2013/10/07/a-ship-a-couple-of-startups-and-the-bay; and here are some pictures of the icebreaker, www.nbcbayarea.com/news/local/The-Icelandic-Cargo-Ship-Maritol-127274388.html.  As you will hear, it is important to sign the petition to keep this space business incubator in the SF Bay.

Post your comments/questions on The Space Show blog.  Check out the Dennis Wingo blog at www.denniswingo.wordpress.com.

The John Batchelor Hotel Mars Show, Wednesday, 6-5-13 June 6, 2013

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The John Batchelor Hotel Mars Show, Wednesday, 6-5-13

http://archived.thespaceshow.com/shows/2023-BWB-2013-06-05.mp3

Guests: John Batchelor, William (Bill) Harwood, Francis Rose, Dr. David Livingston:  Topics:  Curiosity, HST, ISS & more.  You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, https://thespaceshow.wordpress.com. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Written Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright. We do not permit the commercial use of any Space Show program or part thereof, nor do we permit Space Show programs to be edited, placed on YouTube, or other private channels & websites. Space Show programs can be quoted in news articles, papers, academic & research work but must be cited or referenced in the proper citation format. Contact Dr. Livingston for questions about our copyright and trademark policies which we do enforce.  This program is archived on The Space Show website, podcasting, and blog sites with permission from John Batchelor. Please visit the John Batchelor Show website for more information about this fine program, www.johnbatchelorshow.com.

During our 11 minute plus discussion with Bill Harwood, Francis Rose & John Batchelor, we received update on the Mars rover Curiosity, its near term exploration plants for getting to Mt. Sharp, and its success to date. We also talked about the successful ESA ATV mission to the ISS, then we switched to the ongoing success of the Hubble Space Telescope (HST). Bill talked about HST in detail, the possibility of an extended mission and more. We also talked about the upcoming James Webb Space Telescope (JWST) and the possibility of the HST overlapping with some of the JWST mission.

Please post any comments/questions you might have on The Space Show blog.  You can contact any of  us through drspace@thespaceshow.com.

Dr. Chris Impey, Sunday, 4-15-12 April 15, 2012

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Dr. Chris Impey, Sunday, 4-15-12

http://archived.thespaceshow.com/shows/1752-BWB-2012-04-15.mp3

Guest:  Dr. Chris Impey.  Topics:  We discuss Dr. Impey’s new book, “How It Began: A time-Traveler’s Guide To The Universe” along with astronomy, physics, and cosmology topics. We also discussed space policy and the future of human spaceflight plus science missions. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, https://thespaceshow.wordpress.com. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright.  We welcomed Dr. Chris Impey back to the program to discuss his new book.  Remember, if you buy the book from Amazon using the following URL, Amazon makes a contribution to The Space Show/OGLF:  www.amazon.com/How-It-Began-Time-Travelers-Universe/dp/0393080021/ref=onegiantlea20.  For the Kindle version, use www.amazon.com/How-It-Began-Time-Travelers-ebook/dp/B005LW5J30/ref=onegiantlea20.  During the first half of the program, Dr. Impey talked about the book’s structure which is a bit different from other books addressing similar topics.  For example, the further outward in the universe you go via reading the book, the more backward in time you go which is why the book is a time-traveler’s guidebook to the universe.  Dr. Impey explains this to us and the going back in time is with us for the entire Space Show discussion.  Our first stop was our Moon and our guest had much to say about it, including its origins, why and how it orbits Earth at about 240,000 miles, and more.  We also learned what Earth would probably be like without the Moon.  As we went into deeper space after leaving the Moon, we talked about the Kepler Space Telescope (KST) and finding exoplanets plus searching for exomoons.  A listener asked about the delay encountered with supernova 1987A and our guest explained this to us.  I also asked our guest about his statement on page 19 at the bottom about time and Apollo becoming a “distant cultural memory.”  This turned into a lively discussion you don’t want to miss.  We then talked about human spaceflight (HSF) with Dr. Impey suggesting that due to the high cost of HSF and the constant improvements with robotics, we might very well see advanced robotic missions over the coming years rather than human missions which may prove unaffordable.  Don’t miss this conversation, it may very well be an accurate forecast for the future for HSF and robotic missions.

In the second half of our program, we moved out into the universe and talked about the Big Bang, First Light, and the James Webb Space Telescope (JWST).  We also talked about large Earth-based telescopes, Hubble, and looking back close to 13 billion years with JWST while the universe is about 13.7 billions years old.  We talked about why one cannot see the origins of the Big Bang with optical telescopes, but what we can “see” with microwaves.  A listener asked about the Cosmological Principle and another asked about human time travel.  This brought up the topic of black holes.  Questions came up about string theory and the Multiverse, and then John called in to discuss both dark energy and dark matter which turned out to be another fascinating discussion led by Dr. Impey.  Later, we went back to discussing HSF and we learned about the potential for nanobot probes for interstellar missions.  Fleets of such probes acting in a sort of relay fashion might just be real someday.  Near the end of the program, Dr. Impey discussed geopolitics as a driver for space exploration and said more about the early time after the Big Bang for the first 100 million years or so.

Please post your questions/comments on The Space Show blog URL above.

Dr. David Kipping, Friday, 2-10-12 February 10, 2012

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Dr. David Kipping, Friday, 2-10-12

http://archived.thespaceshow.com/shows/1709-BWB-2012-02-10.mp3

Guest:  Dr. David Kipping.  Topics:  Searching for Exomoons and Exoplanets with Kepler Space Telescope (KST).  You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, https://thespaceshow.wordpress.com.  Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright.  We welcomed Dr. David Kipping to the program to discuss the search for Exomoons and Exoplanets.  The primary tool for these searches is the Kepler Space Telescope (KST).  We talked about the methods used to search for the exomoons, mainly planet transits.  Later in our discussion we talked about the other methods including detecting wobbles and using pulsars.  Another discussion issue was the fixed field of view for the KST (about 10 degrees) and the benefit of having multiple KSTs to look at different and broader fields of view of the sky.  Dr. Kipping was asked several questions about finding exomoons in the habitable zone (Goldilocks zone). We also discussed the randomness of targets and the small number that are actually in the field of view from Earth.  Charles in an email brought up spectroscopy in the searches. 

In the second segment, we started out discussing pulsars and their role in these searches.  Dr. Kipping went into some detail to explain to us the radiation pulses and how they can be interpreted in the exoplanet/moon searches.  As you will hear, pulsars are not likely to be located in the Goldilocks zone but Dr. Kipping did give us an idea of the best targets for a visit were we to have interstellar space travel.  Later we talked about the JWST and infrared searches along with the potential the JWST brings to astronomy.  This discussion took into account the NASA budget, competition with the science missions and human spaceflight, and making hard choices for this or that funding.  Our guest took some listener questions about nanosatellites and swarms of mini-KSTs.  Dr. Kipping had much to say about this idea, including that it was a good one.  Another issue covered was the international effort in these searches.  I asked our guest about amateurs and planet searches. He told us about an interactive website, www.planethunters.org plus other programs that involved non-professionals in the searches.  Near the end of the program, Dr. Kipping discussed the differences with the KST public data and private data. 

Please post your comments on The Space Show blog.  If you want to send a note to Dr. Kipping, please do so through me at drspace@thespaceshow.com.

 

Nicholas (Nick) Johnson, Monday, 12-5-11 December 6, 2011

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Nicholas (Nick) Johnson, Monday, 12-5-11

http://archived.thespaceshow.com/shows/1666-BWB-2011-12-05.mp3

 

Nicholas (Nick) Johnson. Topics:  Space debris issues.  You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, https://thespaceshow.wordpress.com.  Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright.  The Space Show/OGLF is now engaged in its annual fundraising drive. Please see & act upon our appeal at https://thespaceshow.wordpress.com/2011/11/21/space-show-2011-fundraising-campaign.  We welcomed Nick Johnson back to the show for a comprehensive discussion on space debris issues.  We started out with an assessment of the space debris problem as of today.  Here, Mr. Johnson talked with us about the impact of sun on space debris through both the solar max and the solar minimum.  I referenced the NRC report and asked if concurred that we were at the “tipping” point in the debris issue.  We talked about cleaning up debris and our guest said that various options were being looked at but we were not there yet.  Nick mentioned a few possible technologies but that funding was needed, demo projects needed to be carried out, and that international cooperation and funding consortium ideas were being explored.  Space attorney Robert called in regarding some of the legal issue needing to be addressed based on the Outer Space Treaty, the Liability Treaty and other legal documents.  Perhaps the biggest legal issue is that of needing permission from the owner of the hardware to retrieve or do something with it so that it does not add to the debris problem.  We did talk about mitigation strategies for newer satellites and I inquired why the 25 year boundary for keeping the satellite from becoming debris.  Jerry called in and wanted to know about the possibility of magnetic cleansing and suggested VASMIR.  Another listener asked about satellite upset events that happen when a satellite gets hit with really small flakes of debris causing the satellite to reboot.  Before the break, we talked about the return to Earth of the Upper Atmosphere Research Satellite (UARS) and Nick talked about tracking the return of objects.  Don’t miss this discussion.  I also asked him about Burnt Frost, the U.S. satellite shoot down in 2008.  We started the second segment with a listener question about possible titanium tanks on Phobos-Grunt and reentry concerns.  Nick said that Russia said the main tanks were aluminum and that Russia should be addressing reentry concerns.  We talked in general about the problem of hydrazine and it remaining frozen during reentry.  Another listener asked about plutonium on board spacecraft and the Russian accident in Canada with Cosmos 954.  Another listener asked about cubesat and possible debris issues.  Space tugs for debris removal were discussed as were Earth-based lasers.  International cooperation was discussed and of course ITAR came up.  As the program was ending, we talked about NASA’s reentry plans for both the ISS and the Hubble Space Telescope.  Nick also clarified the law for us regarding keeping pieces of satellites or debris that hit the Earth as they remain the property of the launching country.  Please post your comments/questions on The Space Show blog URL above.