Hydroponics In Space

SEE HERE For long term habitation in space it will be essential to grow your own food and recycle just about everything, especially water. The sheer difficulty of creating a closed cycle system will I think deter long term habitats in space until the technology can be perfected. Hydroponics is likely to be an important part of the ecology of a long term space colony. One would expect that such a colony's eco-system would be quite fragile. A significant blight would destroy the harvest and likely disrupt the ability of the habitat to exist. Don't expect to see long duration space travel until these kinds of problems are solved.