jump to navigation

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

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , ,
add a comment

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

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

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Our annual campaign drive is now underway.  This fundraising campaign is critical to The Space Show’s operations for the coming year so please support us.  You can read our campaign letter at:

https://thespaceshow.wordpress.com/2015/11/27/oglf-2015-annual-fund-raising-campaign

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.

Matthew (Matt) Wallace, Tuesday, 12-2-14 December 3, 2014

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , ,
4 comments

Matthew (Matt) Wallace, Tuesday, 12-2-14

http://archived.thespaceshow.com/shows/2367-BWB-2014-12-02.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest:  Matthew (Matt) Wallace.  Topics:  Mars science missions, Mars 2020, searching for lie on Mars.  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 Matt Wallace from our Hotel Mars program to his first appearance on The Space Show.  During the first segment of our 90 minute program, Matt talked about his early mission assignments when he first came to JPL, then his shift to the Mars program.  We also talked about how the science missions and rovers are designed, managed, and eventually flown.  I asked our guest several questions about the science missions such as how a Deimos mission might differ from a mission to the surface of Mars.  Later, a listener asked our guest about a Europa mission and how that would differ. While there are clearly differences in the missions to different destinations, the trade process, planning, team organization and such all work pretty much the same.  We did spend some time talking about a Europa mission as that mission is a favorite for many of us, our guest included Most of the Europa mission discussion was in the second segment.  Matt talked about the new science instruments that will be on board Mars 2020, plus the extensive use of heritage hardware. He also said about 70% of the original MSL & Curiosity team would be working on Mars 2020, an important fact in managing the mission, costs and assuring mission success.  Matt was asked why it was so hard to confirm microbial life on Mars now or in the past & if there was one instrument that could do that.  This proved to be a fascinating and detailed discussion so don’t miss it.  Many listener emails addressed the rover control process.  There is no real time communication with the rover so Matt explained how they send commands to the rover, how the rover processes those commands and the safeguards built into it to protect the rover from accidents, etc.  He also talked about communication windows with Earth, when antennas are pointed toward Mars, and the busy DSN.  Listener Alex asked him about the book “The Martian” and wanted to know that were an astronaut stuck on Mars or needing some sort of emergency gear or something, could a defunct Mars rover be cannibalized for parts and made to work for the purpose needed by the person on Mars.  Matt’s answer might surprise you.  Several listeners wanted to know about a human Mars mission being more efficient for finding life signs than a rover.  Matt explained the trades involved. Doug emailed in a similar question during the second segment.  Matt said its not either or.  Instead, the rovers and a human mission are synergistic with one another.  As the segment ended, our guest was asked if NASA/JPL would consider partnering with a private human mission such as Mars One to use Mars One crew members for science missions.

In the second segment, we talked about other Mars rovers and mission including Maven and Insight.  Next, the question came in about Europa that was mentioned in the earlier segment.  Doug not only asked his robotic vs. human question but he sent in another question regarding the sample return mission and what methods might be used for collecting multiple samples.  He suggested a few different collection methods.  Matt said they discuss these types of options but in the end the trades opt for simpler missions for a variety of reasons.  See what you think of his answer & post your comment on the blog.  John, a high school student, sent in a note about colleges and the best path to be able to work in the space industry.  Barbara sent in a note asking if the EDL would be Seven Minutes of Terror Part 2 since they were using the same system as used for Curiosity or would it be less stressful.  Matt said they would still be nail biting all the way down.

Please post your comments/questions on TSS blog above.  You can reach Matt Wallace through me at drspace@thespaceshow.com.

Doug Messier, Monday, 6-16-14 June 17, 2014

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
7 comments

Doug Messier, Monday, 6-16-14

http://archived.thespaceshow.com/shows/2263-BWB-2014-06-16.mp3

Your Amazon Purchases Helps Support The Space Show/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

 

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest:  Doug Messier.  Topics:  Space news reporting, suborbital, Virgin Galactic, XCOR & lots 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 Doug Messier back to the show to discuss featured news articles of late on his blog, http://www.parabolicarc.com.  Please note that Doug used a cell phone and we did have audio issues at various times during the show.  During the first long segment of our 1 hour 38 minute program, Doug talked about the Mojave Air &Spaceport, Stratolaunch and then Doug got called to task by listeners for his recent reporting & comments regarding Virgin Galactic per his blog, his recent Space Show program and his appearance on the Hotel Mars John Batchelor segment last week.  The gist of the hard questions asked Doug centered around asking him if he had a conflict of interest reporting on other companies given the XCOR book he is writing.  They asked this because to them, his reporting seemed unfair to Virgin while giving XCOR a pass on many of the same issues he talked about with Virgin.  We spent most of the first segment talking about these issues.  Doug spoke freely and talked about how he reports on these issues and why he reports the way he does.  He mentioned several Virgin stories as examples but he also made it very clear that he wants all the companies to be successful and for the industry to develop.  As you will see in the last segment, this particular type of question was asked of him as the program was drawing to a close.  Doug was in the hot seat for much of the first segment so you listen and you decide.  Let Doug know your thoughts on his Virgin reporting by posting on TSS blog or emailing him.  I then moved us to other topics & other companies at Mojave, the FAR for amateur rocketry, but the forces to be kept drawing us back to Doug, his Virgin reporting and XCOR comparisons.  Doug managed to talk about recent SFF and Space Access alerts about language in the Senate NASA funding bill that these organizations and others believe to be a poison pill.  Listen for details.  Also, I asked about Congress planning to fund at least $200 million for a new engine replacement for the RD-180.  We also talked about the Falcon 9 & AF SpaceX certification.  Dr. Doug called near the end of the segment.  During his call, he was sent an email question about the Moon by Tony in Seattle.

In the second segment, we talked about the NASA budget for FY 2015 in some detail.  Doug talked about SLS, Orion, commercial crew funding issues and SpaceX possibly expediting some flights prior to the 2017 schedule.  Doug went into detail about the Sen. Shelby amendment which many believe to be the poison pill mentioned in the first segment.  I took us through several of the top stories being reported on Parabolicarc.com including changes to the Arianne launcher, the Decelerator Flight Test, the NASA Centennial Challenge for Cubesat Deep Space, plus we talked about the Google acquisition of Skybox Imaging and their global broadband plans with Worldview.  Also mentioned as the show was drawing to a close was the GLXP, Doug’s visit to the Dragon V2 unveiling, & then Sally’s final email question asking Doug if he wanted Virgin Galactic to fail given how he reports on the company.  Don’t miss his response to Sally, plus my related comments.

Post your comments/questions on TSS blog above. You can reach Doug through his website or me.

Mary Roach, Thursday, 5-30-13 May 31, 2013

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , ,
add a comment

Mary Roach, Thursday, 5-30-13

http://archived.thespaceshow.com/shows/2019-BWB-2013-05-30.mp3

Guest:  Mary Roach.  Topics:  We talked about her new book, “Gulp: Adventures On The Alimentary Canal” with extrapolations for HSF & Mars.  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 author Mary Roach back to the program for this 75 minute one segment discussion about her new book “Gulp: Adventures On The Alimentary Canal.”  If you buy the book with this URL, Amazon will make a contribution to The Space Show/OGLF:  http://www.amazon.com/Gulp-Adventures-Alimentary-Mary-Roach/dp/0393081575/ref=onegiantlea20.  For the Kindle version, use http://www.amazon.com/Gulp-Adventures-Alimentary-Canal-ebook/dp/B00AN86JZ4/ref=onegiantlea20.  While the book does not necessarily address space issues, the introduction talks about NASA research in the early space age period to determine optimum food and nutrition needs for a two year Mars mission.  You will hear Mary talk about their live animal considerations and the settling for mice for “mouse stew.”  In a later chapter on food, the alimentary canal and gas (flatulence), Mary introduced us to the research of Dr. Michael Levitt who NASA engaged to study the impact of human gas in the space capsule and upon fellow astronauts.  Dr. Levitt concluded that it would not likely be a problem.  We did carry this out topic with extrapolations to long duration spaceflight to Mars, being in a small capsule, and other realistic scenarios.  Our discussion unfolded both in space and on terrestrial terms. For example, myths about chewing food were put to rest in the book.  We learned what might happen were a person to actually be swallowed by a whale or large fish.  We talked about gastric acid and GERD and what this problem might mean for a an astronaut.  A listener asked for a reality check on probiotics both here on Earth and for example, on a deep space Mars mission.  Mary provided us with an interesting perspective regarding the marketing and use of probiotics so don’t miss it.  Another listener wanted to know about stories that were not included in Packing For Mars. Mary mentioned a few throughout our discussion.  We talked about the more traditional human factors such as microgravity and radiation and wondered about their impact on food and digestion over the long haul period in space, especially when considering microgravity and radiation effects.  Both Mary’s book, “Gulp,” and this program go into areas you won’t normally hear discussed, even by the space docs so be prepared for a wild but fascinating and informative ride.  I found her latest book to be very full of great information, laughing out loud hilarious throughout the read, and certainly thought provoking for food, waste, & digestive issues here at home as well as what might unfold on long duration deep space missions.  This coupled with her recent book, “Packing For Mars,” are in my opinion must reads for us all.  Check out “Packing For Mars” here:  http://www.amazon.com/Packing-Mars-Curious-Science-Life/dp/B00AR2BCLW/ref=onegiantlea20 and for the Kindle version, http://www.amazon.com/Packing-Mars-Curious-Science-ebook/dp/B003YJEXUM/ref=onegiantlea20.

Please post your comments/questions on The Space Show blog.  You can email Mary Roach through me at drspace@thespaceshow.com.