1970s Space Colony Concepts

Space.com has a collection of awesome and highly optimistic renderings of space colonies, as seen from the 1970s. Can you imagine a fully-fledged farm in space? Now, this was post moon landing, and the sense of conquering space seemed more plausible than it does today. Neill Blomkamp’s Elysium features a floating space colony, called a Stanford Torus, circa 2154.