Most days, you’ll find Joost van Haren tromping through Arizona’s only tropical rainforest. An assistant research professor at the UA, van Haren works in the rainforest at Biosphere 2—in the middle of ...

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 ...

ORACLE, Ariz. — You won't be able to enter the rainforest on your next trip to Biosphere 2 in Oracle. It's closed because a drought is about to "hit" the rainforest. An extensive $2.1 million research ...

To get to the nearest rainforest, from Tucson, that is, head up Oracle Road/Arizona Highway 77 and drive north for 24 miles. Next, at milepost 96.5, turn right onto Biosphere 2 Road. There you’ll find ...

After two months of controlled drought, Biosphere 2’s tropical rainforest is dancing in the rain once again. The University of Arizona’s Biosphere 2, located north of Tucson, is home to several ...

ORACLE, Ariz. - After a four-month closure, Biosphere 2 will reopen its rainforest exhibit Saturday. The facility will be open from 9 a.m. to 4 p.m. Saturday. Admission is $21 for adults, $19 for ...

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.

This segment is part of The State of Science, a series featuring science stories from public radio stations across the United States. This story by Melissa Sevigny appeared on KNAU. The world’s ...

The venture, privately funded to start, is now run by the University of Arizona. And today, scientists there are quietly plugging away at research... ORACLE, Ariz. — Plopped in the Sonoran Desert, ...