I do agree with Mr. Copernicus when he mentioned that stable planets can form in binary star systems such as Alpha Centauri . And not just stable but perhaps even habitable in human terms. The movie is good science fiction but has good science as well (better than most) just like Copernicus said. That being said, Pandora may have a significant amount of oxygen to cause combustion but not enough atmospheric pressure to help the humans breath (might explain why the Na'vi are taller and why the setting is a perhaps a low grav exo-moon, but not entirely sure on that one). About the floating mountains, you did see that the flora kept them from hovering away right?

I agree and apologize for using the "amateur" word. They are great scientists and should be commended for this discovery. I will ask the blog writer to amend that part including the part about luminosity.

It's not cult. The organization is in its early stages. They are quite serious about it. In fact, the goal is to do it within the next three decades. Emerging technologies today will continue to develop quite rapidly as we have seen in the past 60 years alone. I would highly recommend reading the book Man's Next Migration http://www.goldilocksmission.com/mans-next-migration-book.html.