I drive north of Tucson on Oracle Road, with the towering Santa Catalina Mountains on one side, and a broad valley on the other. Turning off toward the town of Oracle, I always expect to see the glass sides of Biosphere 2 gleaming against the brown desert, but it hides behind cactus-studded hills until I have passed the gatehouse.
After I park and purchase a ticket, I stroll down the path to the orientation building and join a group clustered around a guide. In the auditorium, we watch a film narrated by Alan Alda, as he explains the history of Biosphere 2, so named because Earth is THE Biosphere. This glass structure in the desert was man’s feeble attempt to replicate Earth.
Outside again, I look across to a ride and there it is…the immense dome that encloses seven artificial life zones. Although the original experiment of locking in "biospherians" was not able to sustain life, valuable scientific knowledge was gained. Now Columbia University manages the biosphere as a western campus for environmental studies.
The guide leads us up to the glass, where we peer at a jungle full of banana trees and exotic blossoms, and finally takes us through the air lock into the former living quarters. Where the biospherians grew crops to live on, Columbia is experimenting with the greenhouse effect.
Kids love the variety of computers and other interactive exhibits subtly teaching principles of ecology. I find lots of opportunities for shopping at the Biosphere’s gift shops and end my day with a tasty meal at the Canyon del Oro Restaurant, near the entrance.
Location: Take Rt. 77 (Oracle Road) north out of Tucson to milepost 96.5 and turn right at the Biosphere 2 sign.
Hours: Everyday except Christmas, 8:30 a.m. to 5:00 p.m. Tours every 60 minutes.
Admission: Discounts available. Check newspaper for coupons.
by Vera Marie on August 25, 2000
Biosphere 2
32540 S Biosphere Rd Tucson, Arizona 85623
(520) 896-6200