Biosphere 2, Oracle, Arizona


The Biosphere 2
Oracle, Arizona
Map of this Destination
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Biosphere 2, the world’s largest glass-enclosed ecological laboratory, is located in the spectacular Santa Catalina Mountains just north of Tucson.
Currently operated by Columbia University, Biosphere 2 is actually a totally self-contained ecosystem.
This non-profit research and education center was created to better understand Biosphere 1.....our planet Earth. Inside this unique structure, researchers are working to understand how increased carbon dioxide in our atmosphere will affect us and the world we live in.
Biosphere 2 contains five biomes. Inside you will find a lush rainforest (the sky flowers were really beautiful), an arid desert, a savanna, a marsh and a 25-foot ocean which contains a million gallons of salt water.
There are more than 3,000 species of living organisms here and even a waterfall. Much to our disappointment, the waterfall isn’t viewable on the tours.
Connie, our guide on this tour, was very knowledgeable. As we toured the Center, she provided us with current and background data.
Biosphere 2 covers just over three acres, is 91 feet tall at its highest point and is sealed off from Earth below by a 500-ton welded stainless steel liner. The air, soil and water are constantly being monitored by a host of instruments.
The docent led tour starts at the Orientation Center and encompasses the Test Module (the prototype building), the Demonstration Laboratories, the Biosphere Theater and the Biosphere Habitat (once living quarters during an experiment).
There’s even an underwater viewing area where you can see corals and fish in this living ocean laboratory.
The two white, domed structures to the side of the Biosphere are variable air-volume control devices or "lungs".
The Observatory has a telescope, which features an optical design similar to the Hubble Space Telescope. Public viewing is available monthly. For information and a schedule, call 520-896-6200.
Also located on this complex are exhibitions, restaurants, gift shops and even a hotel and conference center.
There is a new "Under The Glass" tour, which is of a more technical nature and requires an additional fee. Due to on-going research, this tour has some restrictions. Check with your tour guide for further information.
To get to the Biosphere, take Highway 77 North out of Tucson and turn right at Mile Marker 96.5.
Cost of the general tour is $12.95 for adults.
Additional information can be obtained by logging onto www.bio2.edu.

Till next time with views from the desert, the Pinal Pioneer Parkway and scenic Route 177...

...keep smiling.