Biosphere 2’s latest mission: Learning how life first emerged on Earth – and how to make barren worlds habitable

Despite being just outside Tucson, Arizona, Biosphere 2 looks almost like a colony on another planet.

Astrobitica September 29, 2025 (Last updated: September 29, 2025) 1 minute read

Despite being just outside Tucson, Arizona, Biosphere 2 looks almost like a colony on another planet.

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