I used to belong to the L5 Society in NYC back in 1985, which was a group of space enthusiasts. We would meet at the Intrepid Sea, Air and Space museum in New Y

I used to belong to the L5 Society in NYC back in 1985, which was a group of space enthusiasts. We would meet at the Intrepid Sea, Air and Space museum in New York City. Scientists, poets, sci-fi geeks, artists, musicians, and even NASA employees and astronauts. Ideas like this for using the other Lagrange equilibrium points were always being discussed. The Lagrange points allow for insertion of objects that while at those equilibrium points, require minimal energy to maintain that position or orbit. AFAIK, there are 5. L5 was a choice for a space colony hence the L5 Society. The L5 Society became absorbed along with the National Space Instititute into the National Space Society. I believe Carl Sagan was President.