The final part of the series looking at the biology of isolated communities. This week Andrew Luck-
Bakerexplores "artificial isolation". Ifweareeverto explore the solar system (a manned mission to Mars, for example), we will need self-sustaining
"closed worlds" that can supply essentials for years on end. Scientists are constantly striving to create closed systems, and there are some interesting experiments going on down here on Planet Earth. Producer Alexandra Feachem
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