From: utzoo!decvax!cca!A.exp@Berkeley@sri-unix
Newsgroups: net.space
Title: 
Article-I.D.: sri-unix.3272
Posted: Tue Sep 14 17:10:51 1982
Received: Thu Sep 16 01:10:20 1982

Subject: Independent space colonies

It is incorrect to say space colonies can not be independent of earth.
It could be done within 20 years.  If interested, it would be to the
reader's advantage to find the references himself.

For an estimate of the percentage of the GNP that could be supplied by
space industry using extraterrestvial material in this period of time
or about 10 years beyond, see the appropriate NASA documents.