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Space farming
Space farming refers to the cultivation of crops for food and other materials in space or on off-Earth celestial objects – equivalent to agriculture on Earth.
Farming on the Moon or Mars share many similarities with farming on a space station or space colony, but would lack the complexity of microgravity found in the latter. Each environment would also have differences in the availability of inputs to the space agriculture process: inorganic material needed for plant growth, soil media, insolation, relative availability of carbon dioxide, nitrogen and oxygen, and so forth.
==Introduction==
Supply of food to space stations and proposed interplanetary spaceships is staggeringly expensive. Furthermore, the impracticality of resupplying interplanetary missions make the prospect of growing food inflight appealing. The existence of a space farm would aid the creation of a sustainable environment, as plants can be used to recycle wastewater, purify air and recycle faeces on the space station or spaceship. This essentially allows the space farm to turn the spaceship into an artificial ecosystem with a hydrological cycle and nutrient recycling.
Supply of foodstuffs to others is likely to be a major part of early off-Earth settlements. Food production is a non-trivial task and is likely to be one of the most labor-intensive, and vital, tasks of early colonists. Among others, NASA is researching how to accomplish space farming.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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