In 1991, eight people sealed themselves in Arizona's Biosphere 2, a $150M airtight ecosystem. For two years, it tested sustainable life for future space habitats, facing challenges. This ambitious experiment provided rich lessons and is now a climate research center.
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In 1991, eight people sealed themselves in Arizona's Biosphere 2, a $150M airtight ecosystem. For two years, it tested sustainable life for future space habitats, facing challenges. This ambitious experiment provided rich lessons and is now a climate research center.
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