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John Batchelor Show Hotel Mars, Wednesday, 3-18-15 March 19, 2015

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John Batchelor Show Hotel Mars, Wednesday, 3-18-15

http://archived.thespaceshow.com/shows/2436-BWB-2015-03-18.mp3

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Guests: John Batchelor, Dr. Michael Mumma, Dr. David Livingston. Topics: Water and oceans in the solar system. 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. Please note that audio and transition issues are a result of copying the John Batchelor broadcast & are not within my control as they originate in the Batchelor studio.

John Batchelor and I welcomed Dr. Michael Mumma to the show to discuss water and oceans throughout the solar system. We focused in on Mars oceans and where the water might have gone, plus we talked about sub-surface oceans on Enceladus, and oceans on Ganymede and Europa. We also talked about early in solar system history the trading ejecta with planets and other terrestrial bodies. I asked about similarities in solar system oceans to the oceans here on Earth, plus I asked if the oceans and bodies of water on these celestial bodies were similar in make-up to oceans on Earth. Our guest said there was no wind, waves, or tides but there was clear water movement. Also, the discovery of water and oceans was very puzzling in many locations. With the Dawn spacecraft now in orbit around Ceres, we also talked about water vapor and plumes on Ceres with more to come as Dawn gets closer and closer to the Ceres surface.

You can email Mr. Batchelor or Dr. Mumma through me at drspace@thespaceshow.com.

 

 

Emily Lakdawalla, Tuesday, 3-10-15 March 11, 2015

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 Emily Lakdawalla, Tuesday, 3-10-15

http://archived.thespaceshow.com/shows/2431-BWB-2015-03-10.mp3

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Guest:  Emily Lakdawalla.  Topics:  We discussed planetary science missions, the outer and inner planets, Ceres, icy moons, and 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 back Emily Lakdawalla for a far ranging planetary science and mission discussion.  During the first segment of our 90 minute program, Emily was asked questions about the Planetary Society’s solar sail mission, LightSail.  Look forward to a special Space Show program about this project in the near future.  I asked her about her Cassini Icy Moons article on her Planetary Society blog which can be found at http://www.planetary.org/blogs/emily-lakdawalla.  We talked about the photo mosaics and Emily told us about the software and how any of could easily do similar mosaics.  As you will hear, we talked about icy moons throughout our program.  The Dawn mission with its approach to Ceres was an important discussion topic as was New Horizons on the way to Pluto.  As all of you have heard before, this is the year of the Dwarf Planet!  Dan called with questions about Mars 2020 and the sample return mission.  We touched on human spaceflight and addressed the NASA planetary budget.  Roy called to ask about the Thursday press conference about Ganymede, then before the break we got a question about the Rosetta mission and the Ceres bright spot.

In the second segment, Emily had more to say about New Horizons, how photos and data would be sent back to Earth, and the upcoming cliff hanging moments with New Horizons and why they are considered cliff hanging.  Don’t miss our New Horizons discussion.  Callers and questions came in about Europa, the overall cost of planetary missions for the American taxpayer, the Dawn orbit around Ceres and limitations due to hydrazine.  One listener even asked if there would be public events around New Horizons arriving at Pluto.  Near the end of the segment, Doug sent in several emails asking about Uranus and Neptune and here Emily had much to say in support of such missions.  I asked our guest about her preference between inner and outer planets.  We also talked about returning to the Moon.  Near the end of the program, Carl wanted to know what was going to happen with planetary science after New Horizons.  A series of lunar questions came in with one asking about a lunar sample return.  I asked Emily if a lunar sample return was needed given the quantity of Moon Rocks that we have from the Apollo era.  Don’t miss her most interesting reply with a focus on possible contamination from the lunar Imbrium event.  As our program was ending, Barry wanted to know why we were using radio communications from the outer planets rather than light.

Please post your comments/questions on TSS blog above. Emily Lakdawalla can be reached through her blog or me.