Where To Stream What on Earth? Season 12 Episode 9
Secrets of Biosphere 2
- Aired March 9, 2023
- 60 Min
- Rated 8.3
- Number 58 Of 139 Rated Episodes
Satellite images capture a mysterious group of pyramid-shaped structures in Arizona's arid, desert landscape. Experts investigate Biosphere 2, a highly controversial research facility designed to prepare humanity for life on another world.