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 ...
Add Yahoo as a preferred source to see more of our stories on Google. Biosphere 2 is a research facility located near Tucson, Ariz. Katja Schulz/Flickr, CC BY From a distance, Biosphere 2 emerges from ...
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