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Biosphere 2–The University of Arizona

Pinal County

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

Phone: (520) 621-4800



  • 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 1223 reviews
  • #2 of 11 things to do in Oracle
  • Show Reviews

The story behind the science.

This is a good experience and I learned about on going studies about our earth habits. We took the Modified Tour for the handicapped. We walked a mile with a lot of breaks. Modified tours are at...

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If I could give this 4 1/2 stars I would. It is an amazing concept and facility is much larger and more complex than I imagined. The 1/2 star would be for the wait to get in, 2 hours in line! It...

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If you love science, don’t miss it!

Biosphere 2 was an awesome experience! It had great tour guides who were extremely knowledgeable and fascinating exhibits. Definitely make sure you book ahead of time and get there early to make sure...

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  • Wheelchair Accessible
  • Website Listing Tag(s): Oro Valley

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Meeting Facilities

  • Number of Meeting Rooms 2
  • Largest Meeting Room 1862
  • Banquet Capacity 120

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