Existing Commercial Potential for Helium-3 from Luna

> Wouldn't it be a lot more economical to get this material from a
Near
> Earth Asteroid located at about 0.25 AU from Earth?
>

My understanding about He3 is that it is imbedded in the deep lunar
regolith. Which it(the regolith) was created after of billions of
years of micro meteor impacts and also it retains it due to its
gravity.

Most asteroids have such weak gravitational fields that they would
not be able to retain such a regolith and would not be a good source
for He3, the only other source that I have heard of for He3, was the
atmosphere of Gas Giants, I think I read about the idea of mining
Uranus atmosphere by Dr John S Lewis, in one of his books, "Mining
the Sky?", maybe not that one, but one of his other books.

Just my $0.02

There is only one (maybe 2) basic core reasons for humans to go
beyond LEO, That is for the establishment of space settlements or a
space based civilization. Everything else are details.

Gary Gray 11/9/2005