With Nasa looking forward to manned missions to Mars within a couple of decades, thoughts are turning to how astronauts there might sustain themselves.
Ferrying food supplies from Earth will be enormously expensive and if colonies are developed then their residents will probably need to become as self-sufficient as possible.
By: Paul Sutherland, Sen.com, Edited by: Kadhim Shubber
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via Wired.co.uk
http://www.wired.co.uk/news/archive/2013-05/13/gardening-on-mars
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