If you have an evening flight home, it’s worth taking a trip thirty miles north to Oracle, Arizona, for an abbreviated tour of Biosphere 2, one of the most ambitious and costly ($200 million) privately funded science projects in history. This three-acre glass terrarium was built as an airtight living lab to determine how humans might function in space. No longer a sealed facility, its management was taken over this year by the University of Arizona, which plans to use it for hydrology and climate-change research. It’s a unique desert experience, much like Tucson itself.
Under the Tucson Sun
Photo: Matthew Turley
