Learn about UNESCO-designated biosphere reserves and why you should visit them.

Editor’s note: This is the first part in a two-part series detailing developments in the UA’s operation of Biosphere 2. The UA looks to tackle “”grand challenges”” and inform the public about science ...

Thirty years ago last month, on Sept. 26, 1993, a group of eight weary, visionary adventurers “returned” to Earth after two years of living together in a miniature version of our world — a ...

Nestled in the foothills of the Catalina Mountains, around 31 miles from Tucson, there exists an oasis; a collection of environments one would never anticipate to exist in the scorched Arizona desert.

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 ...

TUCSON, Ariz. — As part of our summer series, One Tank Trips, the crew of Good Morning Tucson is taking you to places on much less than a tank of gas. April Madison headed north of Tucson to Biosphere ...

Biosphere 2, a facility dedicated to the research and understanding of global scientific issues, is reopening. A bunch of scientists won't live in it this time. Instead the new owners of the Biosphere ...