Biosphere 2

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During the fall, Science Saturdays offer visitors hands-on experiences in science.

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32540 S Biosphere Rd
Off Ariz. 77 at mile marker 96.5
Tucson, AZ 85623


Outside the City


tel: 520 896 6200
fax: 520- 896 6471
visit website
send email


9a-4p daily; closed Thanksgiving & Christmas days


No Sweat


In the rolling grasslands of the Santa Catalina Mountain north of Tucson is the Biosphere 2. Essentially a huge greenhouse designed and built in the 1980s to be self-sustaining, the Biosphere is the largest controlled environment ever created. In 1991, eight researchers entered the Biosphere in a two-year experiment to see if the Biosphere's environment could support all of their needs for two years. The experiment had mixed results. Today, the Biosphere 2 is managed by the University of Arizona, which uses it to study climate change. There are daily tours.



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