From: utzoo!decvax!pur-ee!uiucdcs!mcdaniel Newsgroups: net.space Title: Re: Reactors on the moon - (nf) Article-I.D.: uiucdcs.718 Posted: Thu Sep 16 21:28:05 1982 Received: Fri Sep 17 03:06:29 1982 #R:sri-unix:-328000:uiucdcs:12700011:000:589 uiucdcs!mcdaniel Sep 16 21:09:00 1982 However, Luna is a *B*I*G* rock! There is plenty of room for just about anything you'd like to do. Furthermore, unlike the earth, one spot is just about as good as any other (no weather, river, air pressure, etc. worries -- just land roughness, and that can be solved with a grader or by going down to one of the "seas".) Luna's radius is Order(3000 km) (plus or minus 75%!), and tha surface area of a sphere is 4*pi*r*r (I think), so the lunar surface has an area of 4*3*3e3*3e3 = 1e8 or so square kilometers of more or less usable area (give or take a factor of 100). Plenty of room.