NEWS TIP SHEET Former Biosphere 2 Inhabitants to Speak at CU-Boulder March 17 Two American scientists who spent two years inside the Biosphere 2 dome near Oracle, Ariz., from 1991 to 1993 will speak about their experiences during a presentation at the University of Colorado at Boulder on Monday, March 17. The talk will be held from 3 p.m. to 4:30 p.m. in room ECCR 1B40 of the engineering center. Sponsored by Bioserve Space Technologies Center and the aerospace engineering department, the event is free and open to the public.