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Biosphere 2 - University of Arizona

Located in: Pinal County


32540 S. Biosphere Rd.
Oracle, AZ 85623
United States

Phone: 520-838-6200

Fax: 520-838-6162

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  • Green Business
  • Mexico Ready

There's only one Biosphere 2! Experience Biosphere 2 and find out for yourself why Time Life Books named it “One of the 50 must-see wonders of the world!” Visitors from around the world journey here to explore Earth's largest living research center studying the environment and the future of our planet. A uniquely built indoor trail system allows visitors to explore the tropical rainforest, savanna, coastal fog desert and million-gallon ocean -- all within Biosphere 2’s 6500 panels of glass! Knowledgeable tour guides take you on this adventure and present the history, current programs, research and unprecedented vision using this engineering marvel. Also, don't miss our feature films, multimedia displays, bookstore and cafe. Check out our new “What IF you could see tomorrow?” programs every Saturday along with many other events listed on our website activities calendar. Biosphere 2 is open daily; call or visit our website for hours and rates!

  • TripAdvisor Traveler Rating
    Based on 897 reviews
  • #2 of 8 things to do in Oracle
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Great for mature travelers

Note I didn't say elderly, not that they wouldn't appreciate it, but there is a great deal of walking, stairs, and indoor/outdoor temperature changes, so please be forewarned. I don't believe...

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Interesting although not something to go out way for.

Had free passes from my wife's work so took the drive down from Phoenix to satisfy our courousity. Site was interesting with a small tour and explain nation of the experiment. Also some new...

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View science in action

Biosphere 2 is definitely worth a visit. It was an amazing experiment completed in the early 90s to replicate the environment necessary for humans to live in space. Biosphere 1 is the earth; hence...

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  • Wheelchair Accessible

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