Nice pictures of space colonies on that site. Reminds me of the old L-5 Society and the Space Studies Institute. Does anybody remember those? I was one of two members in San Antonio, Texas. The other guy wasn't very active.<br /><br />I've noticed that there aren't a lot of theads on space colonies, solar power satellites, moon and astroid mining, and things like that. So, I have decided to be real frank about what scared me off.<br /><br />The L-5 Society wanted to put a colony at the Earth/Moon L5 point. They said it was stable. You can solve the three body problem for all time.<br /><br />One day I received through snail mail (remember that ancient concept?) a map of the Sun/Earth Lagrange stability zones. That was pretty interesting. Nice, tadpole-shaped orbits. The longest of these met at the Sun/Earth L3 point on the other side of the Sun. I looked at the points of closest approach to Earth and thought, "Gee. What if it hit the Earth?"<br /><br />Then I thought, "Well the Moon might get in the way. What if it hit the Moon?"<br /><br />...<br /><br />~~!@**__ <img src="/images/icons/crazy.gif" /> ~~~<br /><br />"What if it IS the Moon?"<br /><br />If the Moon formed at the Lagrange points, then, since there are Lagrange points throughout the Solar System, there should be evidence of other Lagrange point objects. Instantly, I flashed on Caloris Basin on Mercury, Pluto, and Neptune's strange, backwards orbiting moon, Triton.<br /><br />Was I elated at this stunning scientific discovery? Hell, no! I felt kind of queasy. It meant that I would have to inform the L-5 Society and the Space Studies Institute that the location they had selected for their space colony was not, in fact, stable. What would they think of me saying such a thing? And it wasn't based on some obscure mathematical theory, but rather solid observational evidence.<br /><br />Worse than that, the Voyagers were on the way, and if Lagrange objects did indeed form and were in fact unstable, then there wo