Broadcast 2623

13 Jan 2016 John Batchelor, Dr. Mark Brodwin, Dr. David Livingston
Your Amazon Purchases Helps Support TSS/OGLF (see

Feedback: What did you think of this show?: 

Guests: John Batchelor, Dr. David Livingston.  Topics. The discovery of the young massive galaxy cluster IDCS 1426.  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 (  For those of you listening to archives on & 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. Mark Brodwin to discuss the discovery and measurement of the massive young galaxy cluster IDCS 1426.  Dr. Brodwin discussed the detailed analysis since 2012 by multiple ground and space telescopes.  He told us how galaxy cluster mass is measured, plus he extrapolated the 10 billion light years away to what it would be like today in real time.  We also talked about the size of this galaxy cluster being about equal to 500 trillion Earth suns!  John and I asked Mark technical questions about the contributions of the different ground and space based telescopes, plus our guest helped us to understand the science associated with this discovery.  Stay tuned for more as Dr. Brodwin will be a full Space Show program guest next month.

You can email Mr. Batchelor or Dr. Brodwin through me at or through Dr. Brodwin's university website at the University of Missouri, Kansas City.




Hotel Mars

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.