Guests: John Batchelor, Doug Messier, Dr. David Livingston.  Topics:  Dream Chaser and the recent drop test at Edwards AFB.    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.  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 back Dr. David Grinspoon to comment on the recent article suggesting Phobos, one of the Mars moons, might impact Mars in 50 million years.  David was asked to tell us what such an impact or event would be like.  David went into great details to describe what might happen should Phobos spiral in to the Martian surface.  Both John and I asked him several "what if" types of questions so be sure to hear the entire Mars part of the program.  For Venus, he was asked about the papers coming out talking about Venus and squishy lid tectonics which he explained in detail and compared to plate tectonics here on Earth.  Dr Grinspoon also talked about the idea of life in the clouds of Venus given possible phosphene being there, then he went over the upcoming DaVinci mission to Venus as he is part of that effort. Before closing, he talked about the other mission underway for Venus and that we need new information as all our info is mostly based on Magellan which is several decades behind what the latest instrumentation can provide us.

You can email Mr. Batchelor of Dr. David Grinspoon through me at drspace@thespaceshow.com.  Dr. Grinspoon has his own website, https://funkyscience.net.