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Biosphere
2 Documentary
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Doc
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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Documentary
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On Flat Earth
20:26
YouTube
Sidetrack Adventures
They Tried to Build Earth in the Arizona Desert - Exploring Biosphere 2
In the Arizona desert stands one of the most interesting experiments of the 20th century: Biosphere 2. In 1991, eight people sealed themselves inside this massive glass structure to see if humans could survive inside a completely closed, self-sustaining version of Earth. The project was designed as a prototype for space colonization and a ...
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