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Biosphere 2

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Biosphere 2 is an American Earth system science research facility located in Oracle, Arizona. Its mission is to serve as a center for research, outreach, teaching, and lifelong learning about Earth, its living systems, and its place in the universe. It is a 3.14-acre (1.27-hectare) structure originally built to be an artificial, materially closed ecological system, or vivarium. It remains the largest closed ecological system ever created.

Exterior of Biosphere 2

Biosphere 2, with upgraded solar panels in foreground, sits on a sprawling 40-acre (16-hectare) science campus that is open to the public.

Exterior showing parts of the rainforest biome and of the habitat, with the West lung in the background

Biosphere 2, viewed from the thornscrub, a transition zone between Savannah and Desert (foreground) and Ocean (background) sections

Oracle, Arizona

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Oracle is a census-designated place (CDP) in Pinal County, Arizona, United States. The population was 3,686 at the 2010 Census, falling to 3,051 at the 2020 Census.

Acadia Ranch Museum

Oracle, AZ – Mt. Lemmon in background.

Oracle, Arizona from the air looking south with the Santa Catalina Mountains in the background

GLOW 2007 exhibit