Guests: John Batchelor, Pablo de Leon, Dr. David Livingston. Topics: We discussed the HSF capsules dating back to the Vostok through Dragon Rider. 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. We welcomed to Hotel Mars Pablo de Leon to discuss HSF capsules from Vostok to Dragon Rider. We discussed the capsule design, why we are still using them, how they were out of favor at one time and are now in favor, plus the future for capsules for human spaceflight. We talked about the thrusters on the Soyuz plus what Dragon Rider is planning to use, plus electronics and computer advancements along with environmental advancements being used in the new capsules. Pablo also discussed alternatives to capsules that we have attempted to develop over the years but without success. Please post any comments/questions you might have on The Space Show blog. You can contact any of us through drspace@thespaceshow.com.