ISBN: | 978-5-5142-8825-0 |
High Quality Content by WIKIPEDIA articles! The O`Neill cylinder (also called an O`Neill colony) is a space settlement design proposed by American physicist Gerard K. O`Neill in his 1976 book The High Frontier: Human Colonies in Space. O`Neill proposed the colonization of space for the 21st century, using materials extracted from the Moon and later from asteroids.