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Biosphere 2–The University of Arizona

Located in: Pinal County


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

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  • Green Business
  • Mexico Ready

838-6200, off AZ Hwy. 77 (Oracle Rd.), near Oracle, AZ. $20.00/adults, $13.00/children 6–12, 5 and younger free. 9 a.m.–4 p.m. Allow two hours. Biosphere 2 was recently named by Time Life Books as one of the 50 must see "Wonders of the World". Biosphere 2 was originally designed as a prototype for space colonization; it now houses real time earth science and research along with a visitor center that has movies, exhibits, cafe and bookstore. Open daily!

  • TripAdvisor Traveler Rating
    Based on 1091 reviews
  • #2 of 9 things to do in Oracle
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Biosphere 2 is Awesome

My daughter really wanted to see the Biosphere 2 and glad we made time to see it. It did not disappoint. Very interesting. We got a late start traveling and didn't have time to see much more than the...

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An Experiment Extraordinaire

My second visit to this amazing place. It is not a glitzy tourist attraction, now maintained by the University of Arizona. What was accomplished there is amazing. Eight people lived for two years...

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Out of the way out of this world

Great tour, interesting guide and a spectacular exhibit. This is a very interesting exhibit. Truly amazing how this was built and what they attempted to accomplish. Wear good walking shoes.

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  • Wheelchair Accessible

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