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. Possibly including closed ecological systems, its particular purpose is permanent habitation.

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]

島一型 （英语：Bernal sphere） 又稱為貝納爾球體 (Bernal sphere)，是記念早年英國科學家與科幻作家 約翰·貝爾納，他在故事中虛構未來的人乘搭像這樣的星艦穿梭宇宙。 是由一個直徑500公尺的球體為中心，向兩側延伸出環狀農業模塊、反射鏡與太陽能板的結構，形似 啞鈴。 以每分鐘1.9圈轉速旋轉使球體赤道擁有足夠的重力，中間球體為居住區，形似山谷的空間約能提供1萬人口的生活與娛樂空間，陽光經由兩端反射鏡導入極地窗戶照入球中。 球型設計的優點在於氣壓 …

2014年9月9日 · Orbital Space Colonies follows in Dr. O’Neill’s footsteps with improvements; showing how to develop the necessary transportation and colonize the solar system with merely an extremely large investment; but one that produces some returns fairly quickly.

宇宙殖民地(Space colony ,Space settlement,Space city ,Space habitat:又称“太空殖民地”、“宇宙殖民岛”、“宇宙岛”、“空间城”、“宇宙都市”、“太空城市”、“太空居民点”等)是在十九世纪的科学界提出目标是在宇宙空间中建立一个仿似地球，且适合人类居住 ...

Space colonization (or extraterrestrial colonization) is the settlement or colonization of outer space and astronomical bodies. The concept in its broad sense has been applied to any permanent human presence in space, such as a space habitat or other extraterrestrial settlements. [2] .

Orbital space settlements are large pressurized structures that constitute cities or villages with residential, commercial and/or governmental functions, built in space from asteroid or lunar materials, where families live. The settlements would rotate to provide artificial gravity.

An orbital space colony is a giant spacecraft big enough to live in. Orbital colonies will travel endlessly through space while the folks inside play, work, socialize, and (hopefully not too often) fight.

We present a new orbital space settlement design for 5,000 residents, Kalpana One. Kalpana One is intended to improve on the designs of the mid-1970s: the Bernal Sphere, Stanford Torus, and O’Neill cylinders, as well as on Lewis One, designed …

The O’Neill Cylinder, designed by Princeton physicist Gerard K. O’Neill, is considerably larger than the other two designs, and is referred to as an “Island 3” or 3rd-generation space colony. The configuration consists of a pair of cylinders, each 20 miles long and 4 miles in diameter.