Space.com: Dubbed the "Cislunar 1,000 Vision," the initiative foresees a self-sustaining economy that supports 1,000 people living and working in Earth-moon space roughly 30 years from now. by Leonard David
'The concept stems from an analysis and ongoing technical work by United Launch Alliance (ULA), a joint venture between Lockheed Martin and Boeing Co. that provides launches aboard Atlas and Delta rockets.
'A central element of the plan involves the use of a souped-up Centaur rocket stage called ACES (Advanced Cryogenic Evolved Stage). This liquid oxygen/liquid hydrogen upper stage is designed to be reusable and can be refueled, perhaps by propellant made using water extracted from Earth's moonor asteroids.
'A road map to attain the Cislunar 1,000 Vision was detailed at the seventh joint meeting of the Space Resources Roundtable and the Planetary Terrestrial Mining Sciences Symposium, which was held here from June 7 through June 9.'