Centauri Dreams, write about this: <a href="http:&#x2F;&#x2F;www.centauri-dreams.org&#x2F;?p=34260" rel="nofollow">http:&#x2F;&#x2F;www.centauri-dreams.org&#x2F;?p=34260</a><p>(It is a favorite web site. Academics writing about interstellar flight, etc.)