Broadcast 3255 Hotel Mars with Dr. Alan Stern

The Space Foundation Conference

Feedback: What did you think of this show?: 

Guests: John Batchelor, Dr. Alan Stern, Dr. David Livingston.  Topics: New Horizons Ultima Thule updates, Pluto & Charon analysis updates.   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,  Remember, your Amazon Purchases Can Help Support The Space Show/OGLF ( 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. Alan Stern for New Horizons updates for Ultima Thule.  We talked about the latest images coming back, the animated video showing the Ultima Thule rotation, the fact that Ultima Thule consists of two connected spheres, the transmission time and bandwidth using the NASA DSN to get information back to Earth and much more.  Alan said updates will continue to be transmitted back to Earth over the next year and a half so we will be discussing this mission in more detail on both future programs on Hotel Mars and The Space Show.

In the second segment of the program, we talked about the information still coming back from the Pluto flyby.  Alan talked about Pluto and Charon, the red polar cap and possible future Pluto missions, maybe even with ion propulsion and a lander.  He said proposals for future missions would be submitted to the Decadal Survey for consideration.

You can email Mr. Batchelor or Dr, Stern through me at




Ultima Thule update

WARNING: Using Disqus Comments on the Space Show:

To ensure your comments do NOT get caught in the Disqus automatic spam filter systemplease login to your Disqus account or create a verified/approved Disqus account.

Posting multiple URL links WILL TRIGGER the Disqus automatic spam filter system.

16 Jan 2019 John Batchelor, Dr. David Livingston, Dr. Alan Stern
Your Amazon Purchases Helps Support TSS/OGLF (see

The Space Show Toll Free Number is only available on live broadcast programs. Please call 1-866-687-7223

  • The Space Foundation Conference

  • The Space Foundation Conference

  • moonwards-logo