Guest: Dr. John Jurist: Topics: Marine Corps SUSTAIN Project, winged suborbital vehicle, suborbital tourism, point to point space transportation, US Space Policy, and UND Space Studies. Dr. John Jurist joined us to talk about the Marine Corps SUSTAIN project, which wants to be able to deliver a fully equipped Marine squad anywhere in the world within two hours. Dr.

Guest: Winston E. Scott (Capt. USN Ret.), former NASA Astronaut, returned for this Space Show program to discuss his "Win An Afternoon with Winston E. Scott, The Astronaut" contest. When a school buys his book, "Reflections From Earth Orbit", they enter the contest to win Capt. Scott for an afternoon. Capt. Scott will come to the school to talk with the students about space. Parents, grandparents, and others can buy and donate his book to the school and enter the school in the contest. The contest ends Oct. 31, 2008.

Guest: Robert Zimmerman returned for this Space Show program. In addition to our discussion, we talked about Bob's new book about Hubble, "The Universe in a Mirror," and his terrific older book, "Leaving Earth." We started the interview by discussing a recent Washington Post article in which the author suggested the ISS be used as a spaceship for going someplace interesting rather than just hanging out in LEO. Mr. Zimmerman wrote about this idea years ago in his famous book, "Leaving Earth," so we talked about the feasibility of actually doing something like this with the station.