ORACLE, Ariz. — After being closed since mid-March because of the pandemic, Biosphere 2 has opened its gates to a brand new nighttime experience. It is a unique new way to see this unique science lab ...

ORACLE, Ariz. — Plopped in the Sonoran Desert, just outside Tucson, Ariz., sits a massive, multilevel greenhouse that's probably best known as the inspiration for a Pauly Shore movie. A slick, stepped ...

JOHN DE DIOS Researchers at Biosphere 2 are looking into the idea of a Model City. The idea is to make the 40-acre campus into a sustainable, solar-powered and energy-efficient example for ...