The University of Arizona

We will be closing at 2pm on Wednesday, December 24th, and will be closed on Thursday, December 25th. We will reopen Friday, December 26th with our regular hours.

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Prof headed to UC-Irvine; led UA to Biosphere 2

Travis Huxman, who led the University of Arizona's efforts to acquire ownership of Biosphere 2 and transform it into a laboratory for scientific research, has been hired away by the University of California. Read more >>

Featured Project


The development of the Landscape Evolution Observatory is the first major renovation of Biosphere 2 since it was constructed. Scientists plan to study how water moves through mountain landscapes and how ecology and landscapes co-evolve in these unprecedented, one-million-kilogram experimental structures. Like us on Facebook and follow the amazing LEO Experiment behind the scenes. Learn more about the project.

Visitor Hours & Info

Biosphere 2 is open for tours daily 9am-4pm. We are closed Thanksgiving and Christmas day. No reservations required. For more information, please contact 520.838.6200.


See what others say about Biosphere 2 on TripAdvisor.

Media Requests

Please direct all media inquiries via email to For a more immediate response, please contact 520.838.6155 / 520.838.6136.

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