Guest: Dr. John Hunter. Topics: Quicklaunch, LLC, hydrogen gas guns, propellant depots, Mars exploration. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, http://thespaceshow.wordpress.com. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. 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.

Guest: Open Lines with Dr. David Livingston. Topics: Space advocacy and enthusiasts, the new Space Show feedback blog, ET & Dr. Stephen Hawking, NewSpace, New Think, space markets. We started the Open Lines show with several announcements including the announcement of a new Space Show blog for listener feedback and ratings for each program. You can access the new blog, The Space Show’s Way Outside The Box Ideas And Plans Blog at http://thespaceshowoutsidethebox.blogspot.com.

Guest: Joe Vogel. Topics: Boeing X-51A Waverider, hypersonics, scramjets. We welcomed the Program Manager for the X-51A Hypersonic Flight Vehicle, Joseph T. Vogel, who is also the Director of Hypersonics in Boeing Phantom Works/Defense Space & Security. In our first segment, we started off with some basic descriptions and definitions for hypersonic vehicles, scramjets, ramjets, along with the mission profile for flight testing X-51A. We discussed the fuels used, the temperatures reached in flight, flight parameters as well as the results of the first flight.