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An O'Neill cylinder (also called an O'Neill colony, or Island Three) is a space settlement concept proposed by American physicist Gerard K. O'Neill in his 1976 book The High Frontier: Human Colonies in Space. [1] O'Neill proposed the colonization of space for the 21st century, using materials extracted from the Moon and later from asteroids. [2]
A Stanford torus interior (cutaway view) Interior view of a large scale O'Neill cylinder, showing alternating land and window stripes. A space settlement (also called a space habitat, spacestead, space city or space colony) is a settlement in outer space, sustaining more extensively habitation facilities in space than a general space station or spacecraft.
The O'Neill cylinder colony design appears frequently, largely unchanged from its original concept, such as in Policenauts. The main space station in the popular TV series, Babylon 5 , is similar to an O'Neill cylinder, but with internal lighting replacing the windows and mirrors.
Initially enthusiastic about the prospect of humans living on Mars, the authors said their research turned them into space settlement skeptics. “Leaving a 2 (degree Celsius) ...
[3] While teaching physics at Princeton, O'Neill became interested in the possibility that humans could survive and live in outer space. He researched and proposed a futuristic idea for human settlement in space, the O'Neill cylinder, in "The Colonization of Space", his first paper on the subject.
A Bishop Ring [1] is a type of hypothetical rotating wheel space station originally proposed in 1997 by Forrest Bishop of the Institute of Atomic-Scale Engineering. [2] The concept is a smaller scale version of the Banks Orbital , which itself is a smaller version of the Niven ring . [ 3 ]
The term space cylinder refers to a space habitat shaped like a cylinder. Types include: McKendree cylinder, hypothetical rotating space habitat originally proposed in 2000; O'Neill cylinder, space settlement concept proposed in his 1976
A Bernal sphere is a type of space settlement intended as a long-term home for permanent residents, first proposed in 1929 by John Desmond Bernal. Bernal's original proposal described a hollow non-rotating spherical shell 10 mi (16 km) in diameter, with a target population of 20,000 to 30,000 people. The Bernal sphere would be filled with air. [1]