Speaking of The New Atlantis, in addition to the Zubrin excerpt, the fall 2007 issue has a lot of space essays to commemorate the half century since Sputnik. It has a classic essay from the early space age by Hannah Arendt on man’s limitations (which I may get around to commenting on later), with several current-day responses, some retrospection from Jim Oberg and (at long last) my review of Michael Belfiore’s Rocketeers.