We welcomed Dr. Bob Zubrin back to the show for our one segment 1 hour 42 minute discussion featuring Bob's new book, "The Case For Space: How The Revolution In Spaceflight Opens Up A Future of Limitless Possibility." Bob discussed additional topics with a focus on the Moon, Mars, the lunar Gateway and more. Please read the full summary of this program at www.thespaceshow.com for this date, Tuesday, May 14, 2019.